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Gomes FS, Campos-Ferreira PV, Macedo RFCD, Costa-Oliveira BE, Bauer J. Glass ionomer cement particles pre-reacted with chlorhexidine: Physical/chemical properties and antimicrobial activity. J Mech Behav Biomed Mater 2024; 158:106678. [PMID: 39096683 DOI: 10.1016/j.jmbbm.2024.106678] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/06/2024] [Revised: 07/27/2024] [Accepted: 07/30/2024] [Indexed: 08/05/2024]
Abstract
OBJECTIVE Analyze the effects of the functionalization of pre-functionalized GIC particles with chlorhexidine on the physicochemical properties and antimicrobial activity. MATERIALS AND METHODS Four groups were prepared: (1) GIC (Bioglass R - Biodinamica) - control group; (2) GIC-CHX 1%: Group containing 1% pre-reacted CHX particles; (3) GIC-CHX 2.5%: Group containing 2.5% pre-reacted CHX particles; (4) GIC-CHX 5%: Group containing 5% pre-reacted CHX particles. Hourglass-shaped specimens (10 mm × 2 mm x 1 mm) were fabricated for mechanical tests including cohesive strength (n = 12), modulus of elasticity (n = 12) and microhardness (n = 10). Discs (10 mm × 2 mm) were prepared for the analysis of Ca+2, PO4- and F- ions release (n = 3), and roughness (n = 12). To evaluate the setting time, a Gilmore needle was used according to ISO 9917-1:2016. Disk-shaped specimens (5 × 1mm) were manufactured and subjected to bacterial activity (n = 9) (Streptococcus mutans ATCC 159). RESULTS Modulus, roughness, setting time and ions release (Ca+2, PO4-, and F-) there were no statistically significant differences among the groups (p > 0.05). The setting time did not change with the incorporation of CHX. The GIC-CHX 2.5% and GIC-CHX 5% groups exhibited superior antibacterial activity compared to the control group and GIC-CHX 1% (p < 0.001). The GIC-CHX 5% group showed the highest microhardness values (p < 0.041), cohesive strength (p < 0.009) when compared to the control group. CONCLUSION The pre-reacted CHX in GICs was able to confer antimicrobial activity, improve cohesive strength, microhardness, and did not impair ion release, setting time, and roughness.
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Affiliation(s)
- Felipe Silva Gomes
- Dentistry Biomaterials Laboratory (Biomma), School of Dentistry, Federal University of Maranhão (UFMA), 65080-805, São Luís, MA, Brazil
| | - Paulo Vitor Campos-Ferreira
- Dentistry Biomaterials Laboratory (Biomma), School of Dentistry, Federal University of Maranhão (UFMA), 65080-805, São Luís, MA, Brazil
| | | | | | - Jose Bauer
- Dentistry Biomaterials Laboratory (Biomma), School of Dentistry, Federal University of Maranhão (UFMA), 65080-805, São Luís, MA, Brazil.
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Song A, Gong H, Zhang J, Wang H, Zhu S, Cui Z. Enhancing glass-ionomer cements with flake-shaped glass: A new frontier in dental restoration. J Biomed Mater Res A 2024. [PMID: 39222404 DOI: 10.1002/jbm.a.37780] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/24/2023] [Revised: 07/04/2024] [Accepted: 07/17/2024] [Indexed: 09/04/2024]
Abstract
This study aims to investigate whether the combined use of thin sheet glass (FSG) and polyurethane acrylate (PUA) can enhance the mechanical properties and biocompatibility of glass ionomer cements (GICs) to improve the overall performance of commercial GICs. In this study, an innovative approach was employed by incorporating diluents and photoinitiators into PUA to develop a novel light-curable PUA material. The PUA was then used to modify the GIC to obtain PUA-modified GIC. Subsequently, physical and chemical methods were employed to corrode and chemically modify the glass fiber surface to acquire dried thin sheet glass (FSG). Different proportions of FSG (10%, 20%, and 30% by mass) were mixed with PUA-GIC to obtain FSG-PUA modified GIC. Mechanical and biocompatibility tests were conducted on regular GIC, PUA-GIC, resin-modified glass ionomer cement (RMGIC), and various proportions of FSG-PUA-GIC materials, including flexural strength, surface hardness, water absorption rate, solubility, shear strength, compressive strength (CS), in vitro cytotoxicity, as well as short-term oral toxicity and subcutaneous implantation trials. A novel FSG-PUA modified GIC was successfully prepared, which not only retained the excellent biocompatibility and fluoride ion release capacity of the original GIC but also significantly enhanced its mechanical strength and durability. The application of this innovative method provides a new direction for the development of dental restorative materials, particularly in addressing the shortcomings of GICs in terms of mechanical performance. The addition of FSG notably increased the flexural strength and surface hardness of GICs, especially at a 20% additive level, demonstrating superior performance compared with standard Fuji IX (F9) and slightly better than RMGIC. Water absorption rate and solubility initially decreased and then increased with an increase in FSG content, and significantly outperformed F9 and RMGIC at 10% and 20% additive levels. Shear strength and CS decreased with an increase in FSG content but remained superior to commercial groups. Material incubation with cells in vitro for 24-48 h showed no significant impact on cell viability, with cell viability exceeding 90%. Short-term oral toxicity tests demonstrated good biocompatibility of the material, and subcutaneous implant trials did not observe any significant inflammation or pathological changes within 12 weeks of observation. The use of FSG-PUA materials effectively enhances the mechanical properties of GIC materials, demonstrating excellent biocompatibility and significant potential as dental restorative materials. Among them, the 20% FSG-PUA modified GICs exhibited significantly superior flexural strength, surface hardness, shear strength, water absorption, and solubility compared with F9 and slightly surpassing RMGIC, showcasing the best mechanical performance.
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Affiliation(s)
- Aiyang Song
- Department of Prosthetic Dentistry, Hospital of Stomatology, Jilin University, Changchun, People's Republic of China
| | - Haihuan Gong
- Department of Prosthetic Dentistry, Hospital of Stomatology, Jilin University, Changchun, People's Republic of China
| | - Jiahui Zhang
- Department of Prosthetic Dentistry, Hospital of Stomatology, Jilin University, Changchun, People's Republic of China
| | - Huimin Wang
- Department of Prosthetic Dentistry, Hospital of Stomatology, Jilin University, Changchun, People's Republic of China
| | - Song Zhu
- Department of Prosthetic Dentistry, Hospital of Stomatology, Jilin University, Changchun, People's Republic of China
| | - Zhanchen Cui
- State Key Lab of Supramolecular Structure and Materials, College of Chemistry, Jilin University, Changchun, People's Republic of China
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Xu Y, Bei Z, Li M, Ye L, Chu B, Zhao Y, Qian Z. Biomedical application of materials for external auditory canal: History, challenges, and clinical prospects. Bioact Mater 2024; 39:317-335. [PMID: 38827173 PMCID: PMC11139775 DOI: 10.1016/j.bioactmat.2024.05.035] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/13/2023] [Revised: 05/14/2024] [Accepted: 05/19/2024] [Indexed: 06/04/2024] Open
Abstract
Biomaterials play an integral role in treatment of external auditory canal (EAC) diseases. Regarding the special anatomic structure and physiological characteristics of EAC, careful selection of applicable biomaterials was essential step towards effective management of EAC conditions. The bioactive materials can provide reasonable biocompatibility, reduce risk of host pro-inflammatory response and immune rejection, and promote the healing process. In therapeutic procedure, biomaterials were employed for covering or packing the wound, protection of the damaged tissue, and maintaining of normal structures and functions of the EAC. Therefore, understanding and application of biomaterials was key to obtaining great rehabilitation in therapy of EAC diseases. In clinical practice, biomaterials were recognized as an important part in the treatment of different EAC diseases. The choice of biomaterials was distinct according to the requirements of various diseases. As a result, awareness of property regarding different biomaterials was fundamental for appropriate selection of therapeutic substances in different EAC diseases. In this review, we firstly introduced the characteristics of EAC structures and physiology, and EAC pathologies were summarized secondarily. From the viewpoint of biomaterials, the different materials applied to individual diseases were outlined in categories. Besides, the underlying future of therapeutic EAC biomaterials was discussed.
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Affiliation(s)
- Yang Xu
- Department of Otorhinolaryngology-Head & Neck Surgery, West China Hospital, Sichuan University, Chengdu, Sichuan, China
- Department of Biotherapy, Cancer Center and State Key Laboratory of Biotherapy, West China Hospital, Sichuan University, Chengdu, Sichuan, China
| | - Zhongwu Bei
- Department of Biotherapy, Cancer Center and State Key Laboratory of Biotherapy, West China Hospital, Sichuan University, Chengdu, Sichuan, China
| | - Mei Li
- Department of Otorhinolaryngology-Head & Neck Surgery, West China Hospital, Sichuan University, Chengdu, Sichuan, China
| | - Lin Ye
- Department of Biotherapy, Cancer Center and State Key Laboratory of Biotherapy, West China Hospital, Sichuan University, Chengdu, Sichuan, China
- Department of Ophthalmology, West China Hospital, Sichuan University, Chengdu, Sichuan, China
| | - Bingyang Chu
- Department of Biotherapy, Cancer Center and State Key Laboratory of Biotherapy, West China Hospital, Sichuan University, Chengdu, Sichuan, China
| | - Yu Zhao
- Department of Otorhinolaryngology-Head & Neck Surgery, West China Hospital, Sichuan University, Chengdu, Sichuan, China
| | - Zhiyong Qian
- Department of Biotherapy, Cancer Center and State Key Laboratory of Biotherapy, West China Hospital, Sichuan University, Chengdu, Sichuan, China
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Altınışık H, Erten Can H, Mutlu Ağardan NB, Berkkan A, Güney M. Prevention of secondary caries using fluoride-loaded chitosan nanoparticle-modified glass-ionomer cement. Clin Oral Investig 2024; 28:504. [PMID: 39196417 DOI: 10.1007/s00784-024-05891-0] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/16/2024] [Accepted: 08/17/2024] [Indexed: 08/29/2024]
Abstract
OBJECTIVE To study the effect of incorporating chitosan and fluoride-loaded chitosan nanoparticles into a glass-ionomer cement (GIC) to prevent secondary caries. MATERIALS AND METHODS A standard cervical cavity (mesio-distal width 6 mm, cervico-occlusal width 2 mm, and depth 2 mm) was prepared on 30 molars for the following restoration groups: group 1, conventional GIC restoration; group 2, chitosan (10%) modified GIC restoration; group 3, fluoride loaded chitosan nanoparticles (10%) modified GIC restoration. The restored teeth were subjected to 1,500 thermal cycles before undergoing a multi-species cariogenic biofilm challenge. The restored teeth were examined by micro-computed tomography (micro-CT), scanning electron microscopy with energy dispersive X-ray spectroscopy (SEM/EDX). Data were analyzed by the one-way ANOVA, Tukey HDS, Kruskal Wallis, and Dunn's test. RESULTS Micro-CT determined outer lesion depths for groups 1-3 were: 614 ± 20 μm, 589 ± 17 μm, and 560 ± 19 μm respectively. Both modifications with chitosan and fluoride-loaded chitosan nanoparticles significantly affected outer lesion depth (p < 0.05). The modification with fluoride-loaded chitosan nanoparticles statistically significantly decreased the outer lesion depth compared to all other groups (p < 0.05). SEM/EDX showed an increase of calcium, phosphorus, and fluoride at the root dentine adjacent to the restoration in groups 2 and 3 (modified GIC). This increase was statistically significantly higher in the group modified with fluorine-loaded nano chitosan particles compared to the other groups (p < 0.05). CONCLUSION Incorporation of 10% chitosan and 10% fluoride-loaded chitosan nanoparticles into GIC restorative material can prevent secondary root caries development. 10% fluoride-loaded chitosan nanoparticles were more effective. CLINICAL SIGNIFICANCE Glass ionomer cement modified with fluoride-loaded chitosan nanoparticles may be a promising restorative material in pediatric and preventive dentistry due to their controlled release properties.
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Affiliation(s)
- Hanife Altınışık
- Department of Restorative Dentistry, Faculty of Dentistry, Gazi University, Ankara, Emek, 06510, Turkey.
| | - Hülya Erten Can
- Department of Restorative Dentistry, Faculty of Dentistry, Dokuz Eylul University, İzmir, Turkey
| | | | - Aysel Berkkan
- Department of Analytical Chemistry, Gazi University Faculty of Pharmacy, Ankara, Turkey
| | - Mustafa Güney
- Department of Medical Microbiology, Gulhane Medical Faculty, University of Health Sciences, Ankara, Turkey
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Alrashdi M, Alhunti A. Clinical Outcome of Prefabricated Zirconia Crowns Cemented with Self-Adhesive Resin and Pure Glass Ionomer on Primary Teeth: A Retrospective Cohort Study. CHILDREN (BASEL, SWITZERLAND) 2024; 11:991. [PMID: 39201926 PMCID: PMC11352874 DOI: 10.3390/children11080991] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Figures] [Subscribe] [Scholar Register] [Received: 07/05/2024] [Revised: 08/09/2024] [Accepted: 08/13/2024] [Indexed: 09/03/2024]
Abstract
Retentive strength data are critical to predicting the long-term clinical performance of zirconia crowns for primary teeth. Objectives: This research assessed the clinical outcome of prefabricated zirconia crowns (PZCs) cemented with either self-adhesive resin cement or pure glass ionomer cement in the primary teeth of children. Method: In the present research, a sample of 162 prefabricated zirconia crowns were collected through convenience sampling. A follow-up examination was conducted at 12 and 24 months to assess the clinical outcomes of PZCs post cementation. Results: Zirconia crowns cemented with self-adhesive resin showed high clinical outcomes at both 12 and 24 months, with 95.1% of crowns retained. In contrast, crowns cemented with glass ionomer cement had slightly lower clinical outcomes, with 91.4% retained at 12 months and 84.0% retained at 24 months, indicating a significant difference (p-value). Long-term follow-up is crucial for the optimal maintenance of crown stability. Conclusions: Self-adhesive resin cement is a viable option for cementing PZCs in pediatric dentistry, demonstrating satisfactory clinical performance over both 12 and 24 months. Future studies comparing different types of cement are recommended for further validation of these results.
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Affiliation(s)
- Murad Alrashdi
- Department of Orthodontic and Pediatric Dentistry, College of Dentistry, Qassim University, Burayadh 52571, Saudi Arabia
| | - Atyaf Alhunti
- Pediatric Dentistry Department, Qassim Regional Dental Center, Qassim Health Cluster, Burayadh 52391, Saudi Arabia
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Al-Rawe RA, Al-Rammahi HM, Cahyanto A, Ma'amor A, Liew YM, Sukumaran P, Wan Hassan WN. Cuttlefish-Bone-Derived Biomaterials in Regenerative Medicine, Dentistry, and Tissue Engineering: A Systematic Review. J Funct Biomater 2024; 15:219. [PMID: 39194657 DOI: 10.3390/jfb15080219] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/18/2024] [Revised: 07/25/2024] [Accepted: 07/30/2024] [Indexed: 08/29/2024] Open
Abstract
BACKGROUND Marine ecosystems, covering 70% of Earth's surface, hold immense biodiversity and potential for biomaterials. Cuttlefish bone (CB) and marine resources have gained attention as eco-friendly biomaterials. OBJECTIVES We aim to comprehensively study biomedical applications of CB-derived materials. By evaluating both in vivo and in vitro investigations, the review seeks to uncover the diverse potential of CB in the biomedical field. METHODS A comprehensive search of electronic databases yielded 51 articles from 2408 studies. These studies encompassed in vivo animal studies and in vitro investigations. RESULTS In vivo studies employed for bone repair, dorsal subcutaneous defects, thermal wound healing, muscle injections, and avian blood testing. In vitro studies focused on HAp synthesis, scaffold development, dental material enhancement, and antimicrobial properties. Risk of bias assessments revealed varying degrees of methodological quality in both animal and in vitro studies, underscoring the need for standardised reporting and rigorous study design in future research. CONCLUSIONS This review fills a gap in the literature by providing a comprehensive overview of the applications of CB-derived materials in the biomedical field. Additionally, it offers valuable insights for researchers, clinicians, and policymakers interested in sustainable and effective biomaterials for diverse medical purposes, advancing the fields of regenerative medicine and dentistry.
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Affiliation(s)
- Rihab Adel Al-Rawe
- Department of Paediatric Dentistry and Orthodontics, Faculty of Dentistry, Universiti Malaya, Kuala Lumpur 50603, Malaysia
- College of Dentistry, Al-Iraqia University, Baghdad 10011, Iraq
| | - Hasan M Al-Rammahi
- Department of Conservative Dentistry, Faculty of Dentistry, University of Babylon, AL Hillah City 51002, Iraq
| | - Arief Cahyanto
- Department of Restorative Dentistry, Faculty of Dentistry, Universiti Malaya, Kuala Lumpur 50603, Malaysia
- Department of Restorative Dentistry, College of Dentistry, Ajman University, Ajman P.O. Box 346, United Arab Emirates
| | - Azman Ma'amor
- Department of Chemistry, Faculty of Science, Universiti Malaya, Kuala Lumpur 50603, Malaysia
| | - Yih Miin Liew
- Department of Biomedical Engineering, Faculty of Engineering, Universiti Malaya, Kuala Lumpur 50603, Malaysia
| | - Prema Sukumaran
- Faculty of Dentistry, Oral & Craniofacial Sciences, King's College London, London Bridge, London SE1 9RT, UK
| | - Wan Nurazreena Wan Hassan
- Department of Paediatric Dentistry and Orthodontics, Faculty of Dentistry, Universiti Malaya, Kuala Lumpur 50603, Malaysia
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Colonello GP, Suffredini IB, Andia DC, Lima AF, Saraceni CHC. Evaluating antimicrobial, cytotoxic and immunomodulatory effects of glass ionomer cement modified by chitosan and hydroxyapatite. Dent Mater 2024; 40:1305-1311. [PMID: 38876828 DOI: 10.1016/j.dental.2024.05.021] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/26/2023] [Revised: 05/13/2024] [Accepted: 05/22/2024] [Indexed: 06/16/2024]
Abstract
OBJECTIVES This study aimed to assess antimicrobial efficacy, cytotoxicity, and cytokine release (IL-1b, IL-6, IL-10, TNF-α) from human dental pulp stem cells (hDPSCs) of chitosan (CH) and hydroxyapatite (HAp)-modified glass ionomer cements (GIC). METHODS GICs with varied CH and HAp concentrations (0 %, 0.16 %, 2 %, 5 %, 10 %) were tested against S. mutans for 24 h or 7 days. Antimicrobial activity was measured using an MTT test. Cytotoxicity evaluation followed for optimal concentrations, analyzing mitochondrial activity and apoptosis in hDPSCs. Cytokine release was assessed with MAGPIX. Antimicrobial analysis used Shapiro-Wilk, Kruskal-Wallis, and Dunnett tests. Two-way ANOVA, Tukey, and Dunnett tests were applied for hDP metabolism and cytokine release. RESULTS CH 2 % and HAp 5 % significantly enhanced GIC antimicrobial activity, especially after seven days. In immediate analysis, all materials showed reduced mitochondrial activity compared to the control. After 24 h, CH demonstrated mitochondrial metabolism similar to the control. All groups exhibited mild cytotoxicity (∼30 % cell death). Only IL-6 was influenced, with reduced release in experimental groups. SIGNIFICANCE CH 2 % and HAp 5 % were most effective for antibacterial effects. GIC-CH 2 % emerged as the most promising formula, displaying significant antibacterial effects with reduced hDPSC toxicity.
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Affiliation(s)
- Gabriel Peres Colonello
- Dental Research Division, Paulista University, Rua Doutor Bacelar, 1212l̥, Sao Paulo 04026-002, Brazil
| | - Ivana Barbosa Suffredini
- Programa de Pós Graduação em Patologia Ambiental e Experimental, Universidade Paulista - Unip, São Paulo, SP, Brazil
| | - Denise Carleto Andia
- Dental Research Division, Paulista University, Rua Doutor Bacelar, 1212l̥, Sao Paulo 04026-002, Brazil
| | - Adriano Fonseca Lima
- Dental Research Division, Paulista University, Rua Doutor Bacelar, 1212l̥, Sao Paulo 04026-002, Brazil.
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Atmaca Y, Karadas M. Clinical comparison of high-viscosity glass-hybrid systems with a sculptable bulk-fill composite resin in different cavity types. J ESTHET RESTOR DENT 2024; 36:1138-1152. [PMID: 38475965 DOI: 10.1111/jerd.13221] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/23/2024] [Revised: 03/01/2024] [Accepted: 03/04/2024] [Indexed: 03/14/2024]
Abstract
OBJECTIVE This randomized, double-blind clinical investigation assessed the performance of two high-viscosity glass-ionomer systems and a bulk-fill composite in different cavity types. MATERIALS AND METHODS In 146 participants, 360 (class I, II, and V) cavities were restored using three different materials (Equia Forte HT, Chemfill Rock, and SonicFill 2) with equal allocation. Using modified World Dental Federation criteria, restorations were assessed after 1 week, 6 months, and 18 months by an experienced examiner. Statistical analysis was conducted using Fisher's exact and Wilcoxon signed rank tests (α = 0.05). RESULTS After 18 months, 267 restorations were assessed in 116 participants. After 18 months, 5 Equia Forte HT restorations failed due to debonding and fracture. Only one loss was observed in the Chemfill Rock restorations. Equia Forte HT exhibited significantly lower retention than SonicFill 2 after 18 months (p = 0.019), irrespective of cavity type. At 1 week, 3 Class I restorations with SF showed postoperative sensitivity. The type of cavity did not affect the performance of the restorative materials used (p > 0.05). CONCLUSION Equia Forte HT and Chemfill Rock presented similar clinical performance regardless of color match. Equia Forte HT showed a lower performance compared to SonicFill 2. CLINICAL SIGNIFICANCE Glass-hybrid materials presented a lower performance in terms of color match or retention when compared to a sculptable bulk-fill composite resin.
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Affiliation(s)
- Yakup Atmaca
- Department of Restorative Dentistry, Recep Tayyip Erdogan University, Faculty of Dentistry, Rize, Turkey
| | - Muhammet Karadas
- Department of Restorative Dentistry, Recep Tayyip Erdogan University, Faculty of Dentistry, Rize, Turkey
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Putranto AW, Meidyawati R, Dwiseptyoga S, Zikrullah DYA. Evaluation of Physical Properties in Carboxymethyl Chitosan Modified Glass Ionomer Cements and the Effect for Dentin Remineralization: SEM/EDX, Compressive Strength, and Ca/P Ratio. Eur J Dent 2024. [PMID: 39013447 DOI: 10.1055/s-0044-1786864] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 07/18/2024] Open
Abstract
OBJECTIVE The aim of this article was to evaluate the effects of modifying glass ionomer cement (GIC) with carboxymethyl chitosan (CMC) on surface morphology and remineralization outcomes by examining dentin morphology and calcium ion composition changes. MATERIALS AND METHODS Thirty holes in a cylindrical acrylic mold were filled with three groups of restorative materials: GIC, GIC modified with CMC (GIC-CMC) 5%, and GIC-CMC10%. The surface morphology of each group's materials was observed using scanning electron microscopy (SEM). The compressive strength measurement was performed using a universal testing machine. The dentin remineralization process was performed by applying GIC, GIC-CMC5%, and GIC-CMC10% materials for 14 days on demineralized dentin cavities treated with 17% ethylenediamine tetraacetic acid (EDTA) for 7 days. A morphological evaluation was conducted using SEM. The calcium ion composition and calcium-to-phosphorous (Ca/P) ratio were examined using an energy-dispersive X-ray (EDX). STATISTICAL ANALYSIS The Kruskal-Wallis and post-hoc Mann-Whitney U tests were performed to compare all four groups of calcium ions (p < 0.05). RESULTS The modification of GIC with CMC affected the morphological changes in the materials in the form of reduced porosity and increased fractures. A significant difference was found in compressive strength between the GIC-CMC modification materials of GIC-CMC5% and GIC-CMC10% and the GIC control group. The dentin tubule morphology and surface changes were observed after applying GIC, GIC-CMC5%, and GIC-CMC10% materials for 14 days, as evaluated by SEM. The EDX examination showed an increase in calcium ion content and hydroxyapatite formation (Ca/P ratio) after applying the GIC-CMC10% material. CONCLUSION The surface porosity of the GIC modification material with the addition of CMC tended to decrease. However, an increase in cracked surfaces that widened, along with the rise in CMC percentage, was found. This modification also reduced the compressive strength of the materials, with the lowest average yield at 10% CMC addition. Therefore, the modification of GIC with CMC affects changes in morphology, calcium ion composition, and Ca/P ratio in demineralized dentin.
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Affiliation(s)
- Aditya Wisnu Putranto
- Department of Conservative Dentistry, Faculty of Dentistry, Universitas Indonesia, Jakarta, Indonesia
| | - Ratna Meidyawati
- Department of Conservative Dentistry, Faculty of Dentistry, Universitas Indonesia, Jakarta, Indonesia
| | - Senyan Dwiseptyoga
- Department of Conservative Dentistry, Faculty of Dentistry, Universitas Indonesia, Jakarta, Indonesia
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Yu OY, Ge KX, Lung CYK, Chu CH. Developing a novel glass ionomer cement with enhanced mechanical and chemical properties. Dent Mater 2024; 40:e1-e13. [PMID: 38782634 DOI: 10.1016/j.dental.2024.05.019] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/07/2023] [Revised: 05/12/2024] [Accepted: 05/13/2024] [Indexed: 05/25/2024]
Abstract
OBJECTIVE To develop a novel glass ionomer cement (NGIC) with enhanced mechanical and chemical properties and assess its biocompatibility, mechanical strength, and ion release. METHODS Nanosilver doped bioactive glass (NanoAg BAG) was synthesized by sol-gel method and characterized by scanning electron microscopy with energy-dispersive X-ray spectroscopy and transmission electron microscopy. The NanoAg BAG, together with poly(vinylphosphonic acid) (PVPA), alumino-fluorosilicate glass and poly-acrylic acid were used to synthesize NGIC. The optimal PVPA concentration for NGIC was determined by PVPA modified GIC's biocompatibility and mechanical properties and used to prepare NGIC specimens. NGIC specimens with NanoAg BAG at 0%, 1%, 2%, and 5% were allocated into Groups NGIC0, NGIC1, NGIC2, and NGIC5, respectively. The biocompatibility, surface morphology, elemental composition, surface topography, chemical properties, compressive strength, diametral tensile strength, and ion release of the NGIC were assessed. A conventional glass ionomer cement (GIC) was used as a control. RESULTS A granular BAG with nano silver particles attached on its surface were found, indicating the successful synthesis of NanoAg BAG. PVPA at 10% presented the best effect in enhancing the biocompatibility and mechanical properties of PVPA modified GIC and was used to prepare NGIC specimens. NGIC1 showed similar biocompatibility, surface morphology and topography to GIC. Chemical properties results showed that NGICs showed the same adsorption peaks to GIC. The compressive strength (mean±SD in MPa) was 168.1 ± 29.7, 205.5 ± 29.5, 221.8 ± 46.8, 216.6 ± 59.3 and 167.7 ± 36.4, and the diametral tensile strength (mean±SD in MPa) was 14.1 ± 1.7, 18.3 ± 4.9, 21.2 ± 2.2, 17.2 ± 3.8 and 13.3 ± 3.3 for GIC, NGIC0, NGIC1, NGIC2 and NGIC5 respectively. NIGC0, NGIC1 and NGIC2 showed higher compressive and diametral tensile strength than GIC (p < 0.01). NGIC2 and NGIC5 showed higher release of fluoride, calcium, phosphate and silver ion than GIC and NGIC0 (p < 0.05). CONCLUSION A biocompatible NGIC with enhanced mechanical properties were developed. It presented enhanced fluoride, calcium, phosphate and silver ion release compared to conventional GIC.
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Affiliation(s)
- Ollie Yiru Yu
- Faculty of Dentistry, The University of Hong Kong, Hong Kong Special Administrative Region.
| | - Kelsey Xingyun Ge
- Faculty of Dentistry, The University of Hong Kong, Hong Kong Special Administrative Region
| | - Christie Ying-Kei Lung
- Faculty of Dentistry, The University of Hong Kong, Hong Kong Special Administrative Region
| | - Chun-Hung Chu
- Faculty of Dentistry, The University of Hong Kong, Hong Kong Special Administrative Region
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Chia YX, Li KC, Zwirner J, Cooper P, Mei ML, Ekambaram M. Effect of Blood Decontamination Procedures on the Microshear Bond Strength of Resin-modified Glass Ionomer Cement to Resin Composite. Oper Dent 2024; 49:412-420. [PMID: 38978320 DOI: 10.2341/23-104-l] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Accepted: 04/09/2024] [Indexed: 07/10/2024]
Abstract
OBJECTIVE To investigate the effect of decontamination procedures on the microshear bond strength (μSBS) of blood-contaminated resin-modified glass ionomer cement (RMGIC) bonded to resin composite (RC). METHODS Eighty RMGIC disc specimens were allocated into 5 groups (n=16). All groups except Group 2 were contaminated with blood. Group 1 had no decontamination procedure, Group 3 was decontaminated by rinsing, Group 4 was decontaminated by 34% phosphoric acid etching, and Group 5 was decontaminated by 5% sodium hypochlorite application. RMGIC specimens were subsequently bonded with RC using a universal adhesive in self-etch mode. μSBS tests were conducted using a universal testing machine at a crosshead speed of 1 mm/min. Failure mode analysis was conducted on RMGIC fracture surfaces under a scanning electron microscope. RESULTS μSBS results indicated that Group 4 had the highest mean μSBS value of 6.22 ± 2.14 MPa, while Group 1 had the lowest mean μSBS value of 3.53 ±1.67 MPa. Significant differences were observed in the μSBS of Group 2 with no contamination (p=0.023) and Group 4 with decontamination by phosphoric acid-etching (p=0.003) when compared to Group 1 with blood contamination. No statistically significant differences (p>0.05) were observed between all other groups' μSBS. For all groups, the predominant mode of failure was adhesive failure between the RMGIC-RC interface, with a few mixed failures in RMGIC for Groups 2-5. CONCLUSIONS Blood contamination before adhesive application significantly reduced the μSBS between RMGIC and RC. Phosphoric acid etching was the most effective blood decontamination procedure to improve the μSBS.
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Affiliation(s)
- Y X Chia
- Yuen Xin Chia, BDS, Department of Oral Rehabilitation, Faculty of Dentistry, University of Otago, Dunedin, New Zealand
| | - K C Li
- Kai Chun Li, BDentTech, BSc, PhD, Department of Oral Rehabilitation, Faculty of Dentistry, University of Otago, Dunedin, New Zealand
| | - J Zwirner
- Johann Zwirner, MD, Dr med, institute of Legal Medicine, University Medical Center Hamburg-Eppendorf, Hamburg, Germany; Institute of Legal Medicine, University of Leipzig, Leipzig, Germany
| | - P Cooper
- Paul Cooper, BSc, PhD, Oral Biology, Department of Oral Sciences, Faculty of Dentistry, University of Otago, Dunedin, New Zealand
| | - M L Mei
- May Lei Mei, BDS, MDS, PhD Department of Oral Rehabilitation, Faculty of Dentistry, University of Otago, Dunedin, New Zealand
| | - M Ekambaram
- *Manikandan Ekambarame, BDS, MDS, PhD, Discipline of Paediatric Dentistry, Department of Oral Sciences, Faculty of Dentistry, University of Otago, Dunedin, New Zealand
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12
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Chen X, Inoue G, Fan L, Sekizawa O, Nitta K, Ikeda M, Shimada Y. Enhancement of mineral density and mechanical properties in root caries treated with silver diammine fluoride and glass ionomer cement, with emphasis on silver ion distribution. J Dent 2024; 146:105041. [PMID: 38762076 DOI: 10.1016/j.jdent.2024.105041] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/12/2024] [Revised: 04/29/2024] [Accepted: 05/03/2024] [Indexed: 05/20/2024] Open
Abstract
OBJECTIVES This study aimed to measure the distribution of silver ion (Ag+), mineral recovery, and nanohardness in carious lesions and comprehensively evaluate the degree of dentin restoration. METHODS Sixty human teeth with root caries were randomly assigned to the control, silver diammine fluoride (SDF) [Safo], and SDF+Glass ionomer cement (GIC) treatment [Safo+Fuji] groups. Micro-computed tomography (micro-CT) was performed at five time points for each sample before/after treatment to evaluate mineral density within and around carious lesions. Three months following treatment, 12 samples were selected for synchrotron radiation X-ray fluorescence analysis to evaluate Ag+ distribution, while 15 samples were selected for nanoindentation. Data were analyzed using Dunnett's T3 test for micro-CT and Wilcoxon rank sum test with Bonferroni correction (p = 0.017) for nanoindentation. The correlation between hardness and mineral change was analyzed using the Spearman rank correlation coefficient. RESULTS The Safo and Safo+Fuji groups showed significantly higher mineral recovery rates than did the control group (p < 0.001). In the Safo group, Ag+ accumulated in the deeper layers rather than the superficial layer of caries. In the Safo+Fuji group, Ag+ was found evenly distributed throughout caries, with only a few Ag+ detected in the GIC layer. Hardness in the Safo+Fuji group was significantly higher compared with the Safo group at depths in the range of 10-50 µm. CONCLUSION In the presence of GICs, SDF exhibited high remineralization capacity when diffusing throughout carious lesions over time. Combined treatment with SDF and GIC could strengthen root dentin even in the presence of caries. CLINICAL SIGNIFICANCE We found that combination treatment with SDF and GIC could increase mineral density in caries and improve the hardness of the tooth structure compared with fluoride-based agents alone. These findings might pave the way for future clinical trials to determine the therapeutic potential of nanotechnology-based restorative materials.
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Affiliation(s)
- Xuefei Chen
- Department of Cariology and Operative Dentistry, Graduate School of Medical and Dental Sciences, Tokyo Medical and Dental University (TMDU), 1-5-45, Yushima, Bunkyo-Ku, Tokyo 113-8549, Japan
| | - Go Inoue
- Department of Cariology and Operative Dentistry, Graduate School of Medical and Dental Sciences, Tokyo Medical and Dental University (TMDU), 1-5-45, Yushima, Bunkyo-Ku, Tokyo 113-8549, Japan.
| | - Lin Fan
- Department of Cariology and Operative Dentistry, Graduate School of Medical and Dental Sciences, Tokyo Medical and Dental University (TMDU), 1-5-45, Yushima, Bunkyo-Ku, Tokyo 113-8549, Japan
| | - Oki Sekizawa
- Research & Utilization Division, Japan Synchrotron Radiation Research Institute (JASRI), SPring-8, 1-1-1 Kouto, Sayo-cho, Hyogo 679-5198, Japan
| | - Kiyofumi Nitta
- Research & Utilization Division, Japan Synchrotron Radiation Research Institute (JASRI), SPring-8, 1-1-1 Kouto, Sayo-cho, Hyogo 679-5198, Japan
| | - Masaomi Ikeda
- Department of Oral Biomedical Engineering, Tokyo Medical and Dental University Graduate School, 1-5-45 Yushima, Bunkyo-Ku, Tokyo 113-8549, Japan
| | - Yasushi Shimada
- Department of Cariology and Operative Dentistry, Graduate School of Medical and Dental Sciences, Tokyo Medical and Dental University (TMDU), 1-5-45, Yushima, Bunkyo-Ku, Tokyo 113-8549, Japan
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13
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Saleem SS, Sabir SM, Abdulla KA. Experimental and Finite Element Analysis of Compressive Strength and Diametral Tensile Strength of Luting Cement: An In Vitro Study. Cureus 2024; 16:e64658. [PMID: 39149653 PMCID: PMC11326503 DOI: 10.7759/cureus.64658] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Accepted: 07/14/2024] [Indexed: 08/17/2024] Open
Abstract
Background Strength parameters greatly influence the selection of luting agents. This study compared the compressive and diametral tensile strengths (DTS) of three luting cements. Materials and methods Three luting cements, conventional glass ionomer (CGI), resin-modified glass ionomer (RMGI), and resin cement (RC), were tested for compressive strength and DTS. Forty-two standardized specimens were prepared, measuring 4 mm by 6 mm for compressive tests and 6 mm by 3 mm for diametral tensile tests. The luting materials were prepared according to the manufacturers' instructions. Result Experimental mean compressive and diametral strengths and standard errors were calculated for each luting agent (n = 10). Analysis of variance was computed (p < 0.05), and multiple comparison tests were performed. RC showed significantly higher compressive strengths and DTS among the three tested luting cements, while the CGI showed the least. The results obtained by finite element analysis (FEA) for both tests closely matched the experimental results. Conclusion In this study, it was concluded that the mean compressive strength and DTS values of all three luting cements were significantly different. The resin luting cement exhibited the highest compressive strength and DTS, while the CGI exhibited the least.
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Affiliation(s)
- Sazan S Saleem
- Department of Pedodontics, Orthodontics, and Preventive Dentistry, College of Dentistry of Hawler Medical University, Erbil, IRQ
| | - Sazgar M Sabir
- Department of Pedodontics, Orthodontics, and Preventive Dentistry, College of Dentistry of Hawler Medical University, Erbil, IRQ
| | - Kareem A Abdulla
- Department of Mechanical and Mechatronics, College of Engineering, Salahaddin University Erbil, Erbil, IRQ
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14
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Hamdy TM. Effect of E-glass fibers addition on compressive strength, flexural strength, hardness, and solubility of glass ionomer based cement. BMC Oral Health 2024; 24:739. [PMID: 38937723 PMCID: PMC11210041 DOI: 10.1186/s12903-024-04447-8] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/14/2024] [Accepted: 06/05/2024] [Indexed: 06/29/2024] Open
Abstract
BACKGROUND In dentistry, glass-ionomer cements (GICs) are extensively used for a range of applications. The unique properties of GIC include fluoride ion release and recharge, chemical bonding to the tooth's hard tissues, biocompatibility, a thermal expansion coefficient like that of enamel and dentin, and acceptable aesthetics. Their high solubility and poor mechanical qualities are among their limitations. E-glass fibers are generally utilized to reinforce the polymer matrix and are identified by their higher silica content. OBJECTIVES The purpose of the study was to assess the impact of adding (10 wt% and 20 wt%) silane-treated E-glass fibers to traditional GIC on its mechanical properties (compressive strength, flexural strength, and surface hardness) and solubility. METHODS The characterization of the E-glass fiber fillers was achieved by XRF, SEM, and PSD. The specimens were prepared by adding the E-glass fiber fillers to the traditional GIC at 10% and 20% by weight, forming two innovative groups, and compared with the unmodified GIC (control group). The physical properties (film thickness and initial setting time) were examined to confirm operability after mixing. The evaluation of the reinforced GIC was performed by assessing the compressive strength, flexural strength, hardness, and solubility (n = 10 specimens per test). A one-way ANOVA and Tukey tests were performed for statistical analysis (p ≤ 0.05). RESULTS The traditional GIC showed the least compressive strength, flexural strength, hardness, and highest solubility. While the GIC reinforced with 20 wt% E-glass fibers showed the highest compressive strength, flexural strength, hardness, and least solubility. Meanwhile, GIC reinforced with 10 wt% showed intermediate results (P ≤ 0.05). CONCLUSION Using 20 wt% E-glass fiber as a filler with the traditional GIC provides a strengthening effect and reduced solubility.
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Affiliation(s)
- Tamer M Hamdy
- Restorative and Dental Materials Department, Oral and Dental Research Institute, National Research Centre (NRC), Giza, Dokki, 12622, Egypt.
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15
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Sharafeddin F, Shirani MM, Jowkar Z. Assessing the Impact of Nano-Graphene Oxide Addition on Surface Microhardness and Roughness of Glass Ionomer Cements: A Laboratory Study. Int J Dent 2024; 2024:5597367. [PMID: 38962728 PMCID: PMC11221947 DOI: 10.1155/2024/5597367] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/13/2023] [Revised: 04/06/2024] [Accepted: 06/14/2024] [Indexed: 07/05/2024] Open
Abstract
Background Nanomaterials, including nano-graphene oxide (nGO), have emerged as promising modifiers for dental materials. Therefore, this study investigated the effect of incorporating nGO into conventional glass ionomer cement (CGIC) and resin-modified glass ionomer cement (RMGIC) on surface roughness and hardness. Methods Sixty disk-shaped specimens (2 × 6 mm) were divided into six groups: CGIC, RMGIC, CGIC with 1 wt.% nGO, CGIC with 2 wt.% nGO, RMGIC with 1 wt.% nGO, and RMGIC with 2 wt.% nGO. Surface roughness (Ra) and Vickers microhardness (VHN) were measured using a surface profilometer and Vickers microhardness tester, respectively. Statistical analysis employed the Kruskal-Wallis and Mann-Whitney tests (p <0.05). Results The microhardness of RMGICs significantly increased with 1% and 2% nGO (p=0.017, P=0.001, respectively), while CGICs showed a significant decrease in VHN with nGO incorporation (p=0.001). VHN values of all CGIC groups were significantly higher than those of all RMGIC groups (p=0.001). Mean surface roughness values for all CGICs were significantly higher than those of RMGIC groups (p=0.001). Within the RMGIC groups, mean Ra values of RMGIC + 1 wt.% nGO and RMGIC + 2 wt.% nGO groups decreased significantly compared to the RMGIC control group (p=0.001, p=0.001, respectively). Among CGIC groups, mean Ra values of 1 wt.% and 2 wt.% nGO/CGIC groups were significantly higher than the CGIC control group (p=0.016, p=0.001). Conclusion Incorporating nGO into RMGICs increased surface microhardness while reducing surface roughness, offering potential advantages for clinical applications. Conversely, adding nGO to CGICs increased surface roughness and decreased surface hardness. These findings emphasize the potential benefits of utilizing nGO in RMGICs and their implications in clinical practice.
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Affiliation(s)
- Farahnaz Sharafeddin
- Department of Operative Dentistry and Biomaterials Research CenterSchool of DentistryShiraz University of Medical Sciences, Shiraz, Iran
| | | | - Zahra Jowkar
- Department of Operative DentistrySchool of DentistryShiraz University of Medical Sciences, Shiraz, Iran
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16
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Leenutaphong N, Phantumvanit P, Young AM, Panpisut P. Evaluation of setting kinetics, mechanical strength, ion release, and cytotoxicity of high-strength glass ionomer cement contained elastomeric micelles. BMC Oral Health 2024; 24:713. [PMID: 38902666 PMCID: PMC11191184 DOI: 10.1186/s12903-024-04468-3] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/02/2024] [Accepted: 06/10/2024] [Indexed: 06/22/2024] Open
Abstract
BACKGROUND Low mechanical properties are the main limitation of glass ionomer cements (GICs). The incorporation of elastomeric micelles is expected to enhance the strength of GICs without detrimentally affecting their physical properties and biocompatibility. This study compared the chemical and mechanical properties, as well as the cytotoxicity, of elastomeric micelles-containing glass ionomer cement (DeltaFil, DT) with commonly used materials, including EQUIA Forte Fil (EF), Fuji IX GP Extra (F9), and Ketac Molar (KT). METHOD Powder particles of GICs were examined with SEM-EDX. Setting kinetics were assessed using ATR-FTIR. Biaxial flexural strength/modulus and Vickers surface microhardness were measured after immersion in water for 24 h and 4 weeks. The release of F, Al, Sr, and P in water over 8 weeks was analyzed using a fluoride-specific electrode and ICP-OES. The toxicity of the material extract on mouse fibroblasts was also evaluated. RESULTS High fluoride levels in the powder were detected with EF and F9. DT demonstrated an initial delay followed by a faster acid reaction compared to other cements, suggesting an improved snap set. DT also exhibited superior flexural strength than other materials at both 24 h and 4 weeks but lower surface microhardness (p < 0.05). EF and F9 showed higher release of F, Al, and P than DT and KT. There was no statistically significant difference in fibroblast viability among the tested materials (p > 0.05). CONCLUSIONS Elastomeric micelles-containing glass ionomer cement (DT) exhibited satisfactory mechanical properties and cytocompatibility compared with other materials. DT could, therefore, potentially be considered an alternative high-strength GIC for load-bearing restorations.
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Affiliation(s)
| | | | - Anne M Young
- Division of Biomaterials and Tissue Engineering, UCL Eastman Dental Institute, Royal Free Hospital, Rowland Hill Street, London, NW3 2PF, UK
| | - Piyaphong Panpisut
- Faculty of Dentistry, Thammasat University, Pathum Thani, 12120, Thailand.
- Thammasat University Research Unit in Dental and Bone Substitute Biomaterials, Thammasat University, Pathum Thani, 12120, Thailand.
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17
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Tan J, Hao J, Vann D, Pavelić K, Ozer F. Effect of Zeolite Incorporation on the Ion Release Properties of Silver-Reinforced Glass Ionomer Cement. Biomimetics (Basel) 2024; 9:365. [PMID: 38921245 PMCID: PMC11202068 DOI: 10.3390/biomimetics9060365] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/30/2024] [Revised: 05/22/2024] [Accepted: 06/14/2024] [Indexed: 06/27/2024] Open
Abstract
BACKGROUND Zeolite can release antimicrobial silver ions in a targeted and controlled manner for an extended time, selectively inhibiting the growth of pathogenic oral bacteria when added to dental materials. The objective of this study was to investigate the effect of the addition of zeolite to silver-reinforced glass ionomer cement on the release of silver ions over time. METHODS Five concentrations of silver-zeolite (0%, 0.5%, 1%, 2%, 4% wt) were incorporated into silver-reinforced GIC in the form of 10 mm × 2 mm circular disks (n = 5). The disks were incubated in deionized water at 37 °C and ion release from the samples was measured at 1, 2, 7, and 30 days after immersion by inductively coupled atomic emission spectroscopy. RESULTS Incorporating silver-zeolite increased silver ion release from silver-reinforced GIC disks compared to the control disks (p < 0.05), while incorporating zeolite alone had no effect. Higher concentrations of added silver-zeolite resulted in increased silver ion release. Sustained silver ion release was observed for up to 30 days. CONCLUSION Adding silver-zeolite to silver-reinforced GIC may enhance its extended antibacterial effect in the oral cavity.
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Affiliation(s)
- Jessica Tan
- School of Dental Medicine, University of Pennsylvania, Philadelphia, PA 19104, USA; (J.T.); (J.H.)
| | - Jessica Hao
- School of Dental Medicine, University of Pennsylvania, Philadelphia, PA 19104, USA; (J.T.); (J.H.)
| | - David Vann
- School of Arts and Sciences, University of Pennsylvania, Philadelphia, PA 19104, USA
| | - Krešimir Pavelić
- Faculty of Medicine, Juraj Dobrila University of Pula, 52100 Pula, Croatia;
| | - Fusun Ozer
- School of Dental Medicine, University of Pennsylvania, Philadelphia, PA 19104, USA; (J.T.); (J.H.)
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Koç-Vural U, Kerimova-Köse L, Kiremitci A. Long-term clinical comparison of a resin-based composite and resin modified glass ionomer in the treatment of cervical caries lesions. Odontology 2024:10.1007/s10266-024-00958-6. [PMID: 38837034 DOI: 10.1007/s10266-024-00958-6] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/11/2023] [Accepted: 05/28/2024] [Indexed: 06/06/2024]
Abstract
This 72-month study compared the clinical effectiveness of a resin-based composite (RBC) (Spectrum TPH3, Dentsply Sirona) with a resin-modified glass ionomer cement (RMGIC) (Riva Light Cure, SDI) in restoring cervical caries lesions (CCLs). Thirty-three patients, each with at least two CCLs, were enrolled. After caries removal, the dimensions of the cavities were recorded. In a split-mouth study design, a total of 110 restorations were randomly placed. Fifty-five restorations were placed with RBC using an etch-and-rinse adhesive system (Prime&Bond NT, Dentsply Sirona), while the remaining 55 were restored with RMGIC. The restorations were assessed at baseline, 6, 12, 18, 24, 36, 60, and 72 months according to modified USPHS criteria. Statistical analysis included Pearson Chi-square, Friedman tests, Kaplan Meier, and Logistic Regression analysis (p < 0.05). After 72 months, 47 restorations in 19 patients were evaluated (55% follow-up rate). Seventy-five percent of the RBC (n = 26) and 74% (n = 21) of the RMGIC restorations were fully retained. There were no significant differences between materials regarding retention and marginal adaptation (p > 0.05). Cavity dimensions, caries activity, and retention exhibited no correlation (p > 0.05). The increase in marginal staining in both groups over time was significant (p < 0.001). RMGIC restorations exhibited higher discoloration than RBC restorations (p = 0.014). At 72 months, three secondary caries lesions were detected in both restoration groups: two RMGIC and one RBC. There were no reports of sensitivity. After 72 months, both RBC and RMGIC restorations were clinically successful, with similar retention and marginal adaptation scores. However, it is noteworthy that RMGIC restorations tend to discoloration over time compared to RBC. The trial is registered in the database of "Clinical Trials". The registration number is NCT0372-2758, October 29, 2018.
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Affiliation(s)
- Uzay Koç-Vural
- Department of Restorative Dentistry, School of Dentistry, Hacettepe University, Ankara, Turkey
| | - Leyla Kerimova-Köse
- Department of Restorative Dentistry, School of Dentistry, Baskent University, Ankara, Turkey.
| | - Arlin Kiremitci
- Department of Restorative Dentistry, School of Dentistry, Hacettepe University, Ankara, Turkey
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Cvjeticanin M, Ramic B, Milanović M, Veljović D, Andjelkovic A, Maletic S, Jevrosimov I, Bajkin B, Guduric V. Cell viability assessment and ion release profiles of GICs modified with TiO 2- and Mg-doped hydroxyapatite nanoparticles. J Dent 2024; 145:105015. [PMID: 38657726 DOI: 10.1016/j.jdent.2024.105015] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/22/2024] [Revised: 04/18/2024] [Accepted: 04/20/2024] [Indexed: 04/26/2024] Open
Abstract
OBJECTIVES To assess and compare the cell viability and ion release profiles of two conventional glass ionomer cements (GICs), Fuji IX and Ketac Molar EasyMix, modified with TiO2 and Mg-doped-HAp nanoparticles (NPs). METHODS TiO2 NPs, synthesized via a sol-gel method, and Mg-doped hydroxyapatite, synthesized via a hydrothermal process, were incorporated into GICs at a concentration of 5 wt.%. The biocompatibility of prepared materials was assessed by evaluating their effects on the viability of dental pulp stem cells (DPSCs), together with monitoring ion release profiles. Statistical analysis was performed using One-way analysis of variance, with significance level p < 0.05. RESULTS The addition of NPs did not significantly affect the biocompatibility of GICs, as evidenced by comparable decreased levels in cell viability to their original formulations. Distinct variations in cell viability were observed among Fuji IX and Ketac Molar, including their respective modifications. FUJI IX and its modification with TiO2 exhibited moderate decrease in cell viability, while other groups exhibited severe negative effects. While slight differences in ion release profiles were observed among the groups, significant variations compared to original cements were not achieved. Fluoride release exhibited an initial "burst release" within the initial 24 h in all samples, stabilizing over subsequent days. CONCLUSIONS The addition of NPs did not compromise biocompatibility, nor anticariogenic potential of tested GICs. However, observed differences among FUJI IX and Ketac Molar, including their respective modifications, as well as induced low viability of DPSC by all tested groups, suggest the need for careful consideration of cement composition in their biological assessments. CLINICAL SIGNIFICANCE The findings contribute to understanding the complex interaction between NPs and GIC matrices. However, the results should be interpreted recognizing the inherent limitations associated with in vitro studies. Further research avenues could explore long-term effects, in vivo performance, and potential clinical applications.
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Affiliation(s)
- Milica Cvjeticanin
- University of Novi Sad, Faculty of Medicine, Department of Dental Medicine, Novi Sad, Hajduk Veljkova 3, Serbia
| | - Bojana Ramic
- University of Novi Sad, Faculty of Medicine, Department of Dental Medicine, Novi Sad, Hajduk Veljkova 3, Serbia.
| | - Marija Milanović
- University of Novi Sad, Faculty of Technology, Department of Materials Engineering, Novi Sad, Bulevar cara Lazara 1, Serbia
| | - Djordje Veljović
- Faculty of Technology and Metallurgy, University of Belgrade, Belgrade, Karnegijeva 4, Serbia
| | - Aleksandar Andjelkovic
- University of Novi Sad, Faculty of Medicine, Department of Dental Medicine, Novi Sad, Hajduk Veljkova 3, Serbia
| | - Snezana Maletic
- University of Novi Sad, Faculty of Sciences, Novi Sad, Trg Dositeja Obradovic 3, Serbia
| | - Irina Jevrosimov
- University of Novi Sad, Faculty of Sciences, Novi Sad, Trg Dositeja Obradovic 3, Serbia
| | - Branislav Bajkin
- University of Novi Sad, Faculty of Medicine, Department of Dental Medicine, Novi Sad, Hajduk Veljkova 3, Serbia
| | - Vera Guduric
- Centre for Translational Bone, Joint and Soft Tissue Research, Faculty of Medicine and University Clinic Carl Gustav Carus, Technical University Dresden, Dresden, Germany
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Nezir M, Ozcan S. In-vitro evaluation of fracture resistance of teeth restored with different high-viscosity glass ionomer restorative materials and bulk-fill composite resins. Clin Oral Investig 2024; 28:345. [PMID: 38809289 PMCID: PMC11136757 DOI: 10.1007/s00784-024-05745-9] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/17/2024] [Accepted: 05/24/2024] [Indexed: 05/30/2024]
Abstract
OBJECTIVES This study aimed to evaluate the effect of restorations made with a glass-hybrid restorative system (GHRS), a high-viscosity glass ionomer restorative material (HVGIC), a high-viscosity bulk-fill composite resin (HVB), a flowable bulk-fill composite resin (FB), and a nanohybrid composite resin (NH), which are commonly preferred in clinical applications on the fracture resistance of teeth in-vitro. MATERIALS AND METHODS One hundred intact human premolar teeth were included in the study. The teeth were randomly divided into ten groups (n = 10). No treatment was applied to the teeth in Control group. Class II cavities were prepared on the mesial surfaces of the remaining ninety teeth in other groups. For restoration of the teeth, a GHRS, a HVGIC, a HVB, a FB, and a NH were used. Additionally, in four groups, teeth were restored using NH, GHRS, and HVGIC with open and closed-sandwich techniques. After 24 h, fracture resistance testing was performed. One-way ANOVA and Tukey HDS tests were used for statistical analysis of the data. RESULTS The fracture resistance values of Control group were statistically significantly higher than those of GHRS, HVGIC, FB, NH, HVGIC-CS, GHRS-OS, and HVGIC-OS groups(p < 0.05). There was no statistically significant difference observed between the fracture resistance values of Control, HVB, and GHRS-CS groups (p > 0.05). CONCLUSION It can be concluded that the use of HVB and the application of GHRS with a closed-sandwich technique may have a positive effect on the fracture resistance of teeth in the restoration of wide Class II cavities. CLINICAL RELEVANCE The use of high-viscosity bulk-fill composite resin and the application of glass-hybrid restorative system with the closed-sandwich technique in the restoration of teeth with wide Class II cavities could increase the fracture resistance of the teeth.
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Affiliation(s)
- Merve Nezir
- Department of Restorative Dentistry, Faculty of Dentistry, Gazi University, Bişkek St. 1.St. Number:8, Çankaya, Ankara, 06490, Turkey.
| | - Suat Ozcan
- Department of Restorative Dentistry, Faculty of Dentistry, Gazi University, Bişkek St. 1.St. Number:8, Çankaya, Ankara, 06490, Turkey
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Mitsuhashi K, Inagaki NF, Ito T. Moldable Tissue-Sealant Hydrogels Composed of In Situ Cross-Linkable Polyethylene Glycol via Thiol-Michael Addition and Carbomers. ACS Biomater Sci Eng 2024; 10:3343-3354. [PMID: 38695560 DOI: 10.1021/acsbiomaterials.3c01755] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 05/14/2024]
Abstract
Moldable tissue-sealant hydrogels were developed herein by combining the yield stress fluidity of a Carbomer and in situ cross-linking of 3-arm PEG-thiol (PEG-SH) and 4-arm PEG-acrylate (PEG-AC). The Carbomer was mixed with each PEG oligomer to form two aqueous precursors: Carbomer/PEG-SH and Carbomer/PEG-AC. The two hydrogel precursors exhibited sufficient yield stress (>100 Pa) to prevent dripping from their placement on the tissue surface. Moreover, these hydrogel precursors exhibited rapid restructuring when the shear strain was repeatedly changed. These rheological properties contribute to the moldability of these hydrogel precursors. After mixing these two precursors, they were converted from yield-stress fluids to chemically cross-linked hydrogels, Carbomer/PEG hydrogel, via thiol-Michael addition. The gelation time was 5.0 and 11.2 min at 37 and 25 °C, respectively. In addition, the Carbomer/PEG hydrogels exhibited higher cellular viability than the pure Carbomer. They also showed stable adhesiveness and burst pressure resistance to various tissues, such as the skin, stomach, colon, and cecum of pigs. The hydrogels showed excellent tissue sealing in a cecum ligation and puncture model in mice and improved the survival rate due to their tissue adhesiveness and biocompatibility. The Carbomer/PEG hydrogel is a potential biocompatible tissue sealant that surgeons can mold. It was revealed that the combination of in situ cross-linkable PEG oligomers and yield stress fluid such as Carbomer is effective for developing the moldable tissue sealant without dripping of its hydrogel precursors.
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Affiliation(s)
- Kento Mitsuhashi
- Center for Disease Biology and Integrative Medicine, The University of Tokyo, 7-3-1 Hongo, Bunkyo-ku, Tokyo 113-0033, Japan
| | - Natsuko F Inagaki
- Center for Disease Biology and Integrative Medicine, The University of Tokyo, 7-3-1 Hongo, Bunkyo-ku, Tokyo 113-0033, Japan
- Department of Chemical System Engineering, The University of Tokyo, 7-3-1 Hongo, Bunkyo-ku, Tokyo 113-8656, Japan
| | - Taichi Ito
- Center for Disease Biology and Integrative Medicine, The University of Tokyo, 7-3-1 Hongo, Bunkyo-ku, Tokyo 113-0033, Japan
- Department of Chemical System Engineering, The University of Tokyo, 7-3-1 Hongo, Bunkyo-ku, Tokyo 113-8656, Japan
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Sharma S, Bagchi A, Mullick S, Deepyanti D, Sai Kiran KD, Kumar A, Surana P. Tensile strength of conventional glass ionomer cement and silver reinforced glass ionomer cement. Bioinformation 2024; 20:391-393. [PMID: 38854768 PMCID: PMC11161885 DOI: 10.6026/973206300200391] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/01/2024] [Revised: 04/30/2024] [Accepted: 04/30/2024] [Indexed: 06/11/2024] Open
Abstract
A comparative analysis and assessment of the compressive strength (CS) and diametral tensile strength (DTS) between conventional glass ionomer cement (C-GIC) and a silver-reinforced GIC (S-GIC) variant is of interest. Ten specimens of both C-GIC (GC Fuji II, Japan) and S-GIC (Riva Silver, SDI, Australia) were fabricated for the evaluation of compressive strength, and an identical number of samples were created for the examination of tensile strength. These specimens were then tested using a universal testing apparatus. The results exhibited that both the compressive and diametral tensile strengths were significantly greater for the S-GIC cement in comparison to the C-GIC, with a notable p-value of 0.001. The findings suggest that S-GIC may be considered a viable alternative to conventional GIC.
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Affiliation(s)
- Suman Sharma
- Department of Pediatric Dentistry, Pihu Dental Hospital, Noida, Uttar Pradesh, India
| | - Anandamoy Bagchi
- Department of Pedodontics & Preventive Dentistry, Kalinga Institute of Dental Sciences, KIIT Deemed to be University, Bhubaneswar, India
| | - Shruti Mullick
- Department of Prosthodontics Crown Bridge & Implantology, Sardar Patel Postgraduate institute of Dental and Medical Sciences, Lucknow, Uttar Pradesh, India
| | - Dubey Deepyanti
- Department of Conservative Dentistry and Endodontics, Dr D.Y Patil Dental College and Hospital, Dr D.Y Patil Vidyapeeth, Pimpri, Pune, Maharashtra, India
| | - Katta Datta Sai Kiran
- Department of Conservative Dentistry and Endodontics, G. Pulla Reddy Dental College and Hospital, Kurnool, Andhra Pradesh, India
| | - Amit Kumar
- Department of Dentistry, Lord Buddha Koshi Medical College and Hospital, Baijnathpur, Saharsa, Bihar-852221, India
| | - Pratik Surana
- Department of Pedodontics and Preventive Dentistry, Maitri College of Dentistry and Research Centre, Durg, Chhattisgarh, India
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Alebady MH, Hamama HH, Mahmoud SH. Effect of various surface coating methods on surface roughness, micromorphological analysis and fluoride release from contemporary glass ionomer restorations. BMC Oral Health 2024; 24:504. [PMID: 38685036 PMCID: PMC11057179 DOI: 10.1186/s12903-024-04234-5] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/01/2023] [Accepted: 04/08/2024] [Indexed: 05/02/2024] Open
Abstract
OBJECTIVE To evaluate the effect of various surface coating methods on surface roughness, micromorphological analysis and fluoride release from contemporary resin-modified and conventional glass ionomer restorations. MATERIALS & METHODS A total of 72 permanent human molars were used in this study. The teeth were randomly assigned into 2 groups according to type of restorative materials used; resin modified glass ionomer cement and conventional glass ionomer (SDI Limited. Bayswater Victoria, Australia). Each group was subdivided into 3 subgroups according to the application of coat material; Sub-group1: without application of coat; Sub-group2: manufacturer recommended coat was applied and sub-group3: customized (vaseline) coat was applied. Each group was then subdivided into two divisions according to the time of testing; immediate (after 24 h) and delayed (after 6 months of storage). Three specimens from each sub-group were selected for surface roughness test (AFM) and another 3 specimens for the micromorphological analysis using scanning electron microscope (SEM). For the fluoride release test, a total of 60 cylindrical discs were used (n = 60). The discs were randomly split into 2 groups according to type of restorative materials used (n = 30); resin modified glass ionomer cement and conventional glass ionomer. Each group was subdivided into 3 subgroups (n = 10) according to the application of the coat material; Sub-group1: without application of coat; Sub-group2: with the manufacturer recommended coat and sub-group3: with application of customized (vaseline) coat. Data for each test was then collected, tabulated, were collected, tabulated, and tested for the normality with Shapiro-Wilk test. Based on the outcome of normality test, the significant effects of variables were assessed using appropriate statistical analysis testing methods. RESULTS Regarding the data obtained from surface roughness test, Shapiro-Wilk test showed normal distribution pattern of all values (p > 0.05). Accordingly, Two-way ANOVA outcome showed that the 'type of restoration' or 'test time' had statistically significant effect on the AFM test (p < 0.05). Regarding Fluoride specific ion electrode test 2-way ANOVA followed by Least Significant Difference (LSD) Post-hoc test revealed significant difference among the groups (p < 0.05). It showed that SDI GIC group after 14 days of measurement had the highest mean of fluoride release (36.38 ± 3.16 PPM) and SDI RMGIC after 30 days of measurement had the second highest mean of fluoride release (43.28 ± 1.89 PPM). Finally, regarding the micromorphological analysis using SEM, a slight difference was observed between the studied groups. CONCLUSIONS Based on the results of this study, various coatings enhance surface roughness in the initial 24 h of restoration insertion. Different coat types seems that have no influence on fluoride release and the micromorphological features of the restoration/dentin interface.
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Affiliation(s)
- Mohanad H Alebady
- Conservative Dentistry Department, Faculty of Dentistry, Mansoura University, Mansoura, 35516, Egypt
| | - Hamdi H Hamama
- Conservative Dentistry Department, Faculty of Dentistry, Mansoura University, Mansoura, 35516, Egypt.
| | - Salah H Mahmoud
- Conservative Dentistry Department, Faculty of Dentistry, Mansoura University, Mansoura, 35516, Egypt
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24
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Josephraj F, Kumar N A, Nandini V V, S S, Karthik V. Performance evaluation of carbon quantum dots impregnated glass ionomer cement to avoid peri-implant disease. Biomed Mater 2024; 19:035040. [PMID: 38636498 DOI: 10.1088/1748-605x/ad407b] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/01/2023] [Accepted: 04/18/2024] [Indexed: 04/20/2024]
Abstract
Dental cement residues exacerbate peri-implant tissue irritation and peri-implantitis. The present study aims to evaluate the cytotoxicity, physiochemical, optical, and rheological properties of carbon quantum dots (CQDs) impregnated glass ionomer cement (GIC). Surface passivated fluorescent CQDs were synthesized using citric acid via thermal decomposition and blended with GIC. Characterization studies and rheological measurements were made to evaluate their performance. 3D-printed dental implant models cemented with GIC and GIC-CQD were compared to analyze excess cement residues. MTT assay was performed with human dental pulp stem cells (hDPSCs) and statistically analyzed using ANOVA and Tukey's test. CQDs with a particle dimension of ∼2 nm were synthesized. The amorphous property of GIC-CQD was confirmed through XRD. The fluorescence properties of GIC-CQD showed three times higher emission intensity than conventional GIC. GIC-CQD attained maturation with a setting time extended by 64 s than GIC. Cement residue of size 2 mm was detected with a UV light excitation at a distance between 5 to 10 cm. Biocompatibility at 0.125 mg ml-1dilution concentrations of GIC-CQD showed viability greater than 80% to hDPSCs. For the first time, we report that CQDs-impregnated GIC is a unique and cost-effective strategy for in-situ detection of excess cement rapidly using a hand-held device. A novel in-situ rapid detection method enables the dentist to identify residual cement of size less than 2 mm during the implantation. Therefore, GIC-CQD would replace conventional GIC and help in the prevention of peri-implant diseases.
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Affiliation(s)
- Febina Josephraj
- Department of Biomedical Engineering, SRM Institute of Science and Technology, Kattankulathur, Chengalpattu, Tamilnadu, India
| | - Ashwin Kumar N
- Department of Biomedical Engineering, SRM Institute of Science and Technology, Kattankulathur, Chengalpattu, Tamilnadu, India
| | - Vidyashree Nandini V
- Department of Prosthodontics and Implantology, SRM Kattankulathur Dental College and Hospital, Kattankulathur, Chengalpattu, Tamilnadu, India
| | - Sujatha S
- Department of Biotechnology, SRM Institute of Science and Technology, Kattankulathur, Chengalpattu, Tamilnadu, India
| | - Varshini Karthik
- Department of Biomedical Engineering, SRM Institute of Science and Technology, Kattankulathur, Chengalpattu, Tamilnadu, India
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Mascarenhas R, Hegde S, Manaktala N. Chitosan nanoparticle applications in dentistry: a sustainable biopolymer. Front Chem 2024; 12:1362482. [PMID: 38660569 PMCID: PMC11039901 DOI: 10.3389/fchem.2024.1362482] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/28/2023] [Accepted: 03/26/2024] [Indexed: 04/26/2024] Open
Abstract
The epoch of Nano-biomaterials and their application in the field of medicine and dentistry has been long-lived. The application of nanotechnology is extensively used in diagnosis and treatment aspects of oral diseases. The nanomaterials and its structures are being widely involved in the production of medicines and drugs used for the treatment of oral diseases like periodontitis, oral carcinoma, etc. and helps in maintaining the longevity of oral health. Chitosan is a naturally occurring biopolymer derived from chitin which is seen commonly in arthropods. Chitosan nanoparticles are the latest in the trend of nanoparticles used in dentistry and are becoming the most wanted biopolymer for use toward therapeutic interventions. Literature search has also shown that chitosan nanoparticles have anti-tumor effects. This review highlights the various aspects of chitosan nanoparticles and their implications in dentistry.
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Affiliation(s)
- Roma Mascarenhas
- Department of Conservative Dentistry and Endodontics, Manipal College of Dental Sciences Mangalore, Manipal Academy of Higher Education, Manipal, India
| | - Shreya Hegde
- Department of Conservative Dentistry and Endodontics, Manipal College of Dental Sciences Mangalore, Manipal Academy of Higher Education, Manipal, India
| | - Nidhi Manaktala
- Department of Oral Pathology and Microbiology, Manipal College of Dental Sciences Mangalore, Manipal Academy of Higher Education, Manipal, India
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26
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Dantagnan CA, Babajko S, Nassif A, Houari S, Jedeon K, François P, Dursun E, Attal JP, Bosco J. Analysis of Resin-Based Dental Materials' Composition Depending on Their Clinical Applications. Polymers (Basel) 2024; 16:1022. [PMID: 38674942 PMCID: PMC11053636 DOI: 10.3390/polym16081022] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/11/2024] [Revised: 04/01/2024] [Accepted: 04/02/2024] [Indexed: 04/28/2024] Open
Abstract
The objective of this study was to detail the monomer composition of resin-based dental materials sold in the market in 2023 and to evaluate the proportion of bisphenol A (BPA)-derivatives in relation to their applications. A search on manufacturers' websites was performed to reference resin-based dental materials currently on the European market (including the European Union (EU) and United Kingdom (UK). Their monomer composition was determined using material-safety data sheets and was completed by a search on the PubMed database. Among the 543 material compositions exploitable, 382 (70.3%) contained BPA derivatives. Among them, 56.2% contained BisGMA and 28% BisEMA, the most frequently reported. A total of 59 monomers, of which six were BPA derivatives, were found. In total, 309 materials (56.9%) contained UDMA and 292 (53.8%) TEGDMA. Less than one third of materials identified contained no BPA derivatives. These proportions vary a lot depending on their applications, with materials dedicated to the dental care of young populations containing the highest proportions of BPA-derivative monomers. The long-term effects on human health of the different monomers identified including BPA-derivative monomers is a source of concern. For children and pregnant or lactating women arises the question of whether to take a precautionary principle and avoid the use of resin-based dental materials likely to release BPA by opting for alternative materials.
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Affiliation(s)
- Claire-Adeline Dantagnan
- Innovative Dental Materials and Interfaces Research Unit, Faculty of Dentistry, Université Paris Cité, 1 rue Maurice Arnoux, 92120 Montrouge, France; (C.-A.D.); philo.franç (P.F.); (E.D.); (J.B.)
- Pitié-Salpêtrière Hospital, 47-83 Boulevard de l’Hôpital, 75013 Paris, France; (A.N.); (S.H.)
| | - Sylvie Babajko
- Biomedical Research in Odontology, Faculty of Dentistry, Université Paris Cité, 1 rue Maurice Arnoux, 92120 Montrouge, France; (S.B.); (K.J.)
| | - Ali Nassif
- Pitié-Salpêtrière Hospital, 47-83 Boulevard de l’Hôpital, 75013 Paris, France; (A.N.); (S.H.)
- Biomedical Research in Odontology, Faculty of Dentistry, Université Paris Cité, 1 rue Maurice Arnoux, 92120 Montrouge, France; (S.B.); (K.J.)
| | - Sophia Houari
- Pitié-Salpêtrière Hospital, 47-83 Boulevard de l’Hôpital, 75013 Paris, France; (A.N.); (S.H.)
- Biomedical Research in Odontology, Faculty of Dentistry, Université Paris Cité, 1 rue Maurice Arnoux, 92120 Montrouge, France; (S.B.); (K.J.)
| | - Katia Jedeon
- Biomedical Research in Odontology, Faculty of Dentistry, Université Paris Cité, 1 rue Maurice Arnoux, 92120 Montrouge, France; (S.B.); (K.J.)
- Rothschild Hospital, 5 rue Santerre, 75012 Paris, France
| | - Philippe François
- Innovative Dental Materials and Interfaces Research Unit, Faculty of Dentistry, Université Paris Cité, 1 rue Maurice Arnoux, 92120 Montrouge, France; (C.-A.D.); philo.franç (P.F.); (E.D.); (J.B.)
- Bretonneau Hospital, 23 rue Joseph de Maistre, 75018 Paris, France
| | - Elisabeth Dursun
- Innovative Dental Materials and Interfaces Research Unit, Faculty of Dentistry, Université Paris Cité, 1 rue Maurice Arnoux, 92120 Montrouge, France; (C.-A.D.); philo.franç (P.F.); (E.D.); (J.B.)
- Henri Mondor Hospital, 1 rue Gustave Eiffel, 94000 Créteil, France
| | - Jean-Pierre Attal
- Innovative Dental Materials and Interfaces Research Unit, Faculty of Dentistry, Université Paris Cité, 1 rue Maurice Arnoux, 92120 Montrouge, France; (C.-A.D.); philo.franç (P.F.); (E.D.); (J.B.)
- Charles Foix Hospital, 7 Avenue de la République, 94200 Ivry sur Seine, France
| | - Julia Bosco
- Innovative Dental Materials and Interfaces Research Unit, Faculty of Dentistry, Université Paris Cité, 1 rue Maurice Arnoux, 92120 Montrouge, France; (C.-A.D.); philo.franç (P.F.); (E.D.); (J.B.)
- Pitié-Salpêtrière Hospital, 47-83 Boulevard de l’Hôpital, 75013 Paris, France; (A.N.); (S.H.)
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27
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Khadatkar P, Niranjan B, Bansal A, Sundaramurthy S, Choudhary K, Sijeria P. A comparative evaluation of fluoride release and rechargeability in conventional GIC (type II), pediatric GIC (type IX), and Cention-N: an in vitro study. Eur Arch Paediatr Dent 2024; 25:161-168. [PMID: 38334867 DOI: 10.1007/s40368-023-00856-5] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/25/2023] [Accepted: 11/15/2023] [Indexed: 02/10/2024]
Abstract
PURPOSE A comparative evaluation of fluoride release and re-chargeability in conventional glass ionomer cement (GIC) (type II), Pediatric GIC (type IX), and Cention-N-an in vitro study at an interval of first, fourteenth, and twenty first days. METHODS Three groups of test materials, each with twenty samples, were prepared. Measurements of the cumulative fluoride release [parts per million (ppm)] and re-release measured on the first, fourteenth, and twenty first days. Analysis of variance (ANOVA) was used to compare the means for different readings, and Tukey's post hoc analysis was used to compare each group with each other. RESULTS Initial and subsequent fluoride release of Cention-N at days one, fourteen, and twenty-one were all noticeably higher than those of conventional and pediatric GIC. CONCLUSION Compared to the Conventional and Pediatric GIC restorative materials, Cention-N was more effective in the initial and fluoride re-release.
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Affiliation(s)
- P Khadatkar
- Department of Pediatric and Preventive Dentistry, Rishiraj College of Dental Sciences and Research Center, Bhopal, Madhya Pradesh, India
| | - B Niranjan
- Department of Pediatric and Preventive Dentistry, Rishiraj College of Dental Sciences and Research Center, Bhopal, Madhya Pradesh, India.
| | - A Bansal
- Department of Pediatric and Preventive Dentistry, Rishiraj College of Dental Sciences and Research Center, Bhopal, Madhya Pradesh, India
| | - S Sundaramurthy
- Department of Chemical Engineering, Maulana Azad National Institute of Technology, Bhopal, Madhya Pradesh, 462003, India
| | - K Choudhary
- Department of Pediatric and Preventive Dentistry, Rishiraj College of Dental Sciences and Research Center, Bhopal, Madhya Pradesh, India
| | - P Sijeria
- Department of Pediatric and Preventive Dentistry, Rishiraj College of Dental Sciences and Research Center, Bhopal, Madhya Pradesh, India
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28
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Mansoor A, Mansoor E, Mehmood M, Hassan SMU, Shah AU, Asjid U, Ishtiaq M, Jamal A, Rai A, Palma PJ. Novel microbial synthesis of titania nanoparticles using probiotic Bacillus coagulans and its role in enhancing the microhardness of glass ionomer restorative materials. Odontology 2024:10.1007/s10266-024-00921-5. [PMID: 38554219 DOI: 10.1007/s10266-024-00921-5] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/16/2023] [Accepted: 02/18/2024] [Indexed: 04/01/2024]
Abstract
Dental caries is a commonly occurring non-communicable disease throughout the world that might compromise the quality of any individual's life. Glass ionomer cements (GIC) are the most acceptable restorative materials due to their ease of manipulation, minimal tooth loss and least invasive strategy; however, they lack mechanical stability that has become a point of concern. Nanoparticles (NPs) are an outstanding option for modifying and enhancing the properties of dental materials. The focus of this study was to prepare novel, biocompatible titania dioxide (TiO2) NPs as a dental-restorative material using an efficient probiotic Bacillus coagulans. The prepared NPs were incorporated into glass ionomer restorative material at varying concentrations and investigated for cell viability percentage, microhardness and surface morphology. Results indicated that pure 100% anatase phase TiO2 NPs with particle size of 21.84 nm arranged in smooth, spherical agglomerates and clusters forms. These NPs depicted cell viability > 90%, thus confirming their non-cytotoxic behavior. GIC restorative materials reinforced by 5% titania (TiO2) NPs demonstrated the highest microhardness in comparison to the control group and other experimental groups of the study. Surface morphology analysis revealed a reduction in cracks in this novel dental-restorative material supporting its compatible biological nature with better hardness strength and negligible crack propagation. Overall, these results indicated that TiO2 NPs produced using a biological approach could be easily used as restorative materials in dental applications.
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Affiliation(s)
- Afsheen Mansoor
- Department of Microbiology, Quaid-I-Azam University, Islamabad, 45320, Pakistan
- Department of Dental Material Sciences, School of Dentistry, Shaheed Zulfiqar Ali Bhutto Medical University, Islamabad, 44080, Pakistan
| | - Emaan Mansoor
- Islamic International Dental College, Riphah International University, Islamabad, 46000, Pakistan
| | - Mazhar Mehmood
- Department of Metallurgy and Materials Engineering, Pakistan Institute of Engineering and Applied Sciences, Islamabad, Pakistan
| | - Syed Mujtaba Ul Hassan
- Department of Metallurgy and Materials Engineering, Pakistan Institute of Engineering and Applied Sciences, Islamabad, Pakistan
| | - Atta Ullah Shah
- Department of Materials, National Institute of Lasers and Optronics, Islamabad, 45650, Pakistan
| | - Uzma Asjid
- Department of Materials, National Institute of Lasers and Optronics, Islamabad, 45650, Pakistan
| | - Muhammad Ishtiaq
- Department of Microbiology, Quaid-I-Azam University, Islamabad, 45320, Pakistan
| | - Asif Jamal
- Department of Microbiology, Quaid-I-Azam University, Islamabad, 45320, Pakistan.
| | - Akhilesh Rai
- CNC-Center for Neuroscience and Cell Biology, CIBB-Center for Innovative Biomedicine and Biotechnology, University of Coimbra, 3004-504, Coimbra, Portugal
| | - Paulo J Palma
- Center for Innovation and Research in Oral Sciences (CIROS), Faculty of Medicine, University of Coimbra, 3000-075, Coimbra, Portugal.
- Institute of Endodontics, Faculty of Medicine, University of Coimbra, 3000-075, Coimbra, Portugal.
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29
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Ortega MA, Rios L, Fraile-Martinez O, Liviu Boaru D, De Leon-Oliva D, Barrena-Blázquez S, Pereda-Cerquella C, Garrido-Gil MJ, Manteca L, Buján J, García-Honduvilla N, García-Montero C, Rios-Parra A. Bioceramic versus traditional biomaterials for endodontic sealers according to the ideal properties. Histol Histopathol 2024; 39:279-292. [PMID: 37747049 DOI: 10.14670/hh-18-664] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [MESH Headings] [Grants] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 09/26/2023]
Abstract
Odontology, as a scientific discipline, continuously collaborates with biomaterials engineering to enhance treatment characteristics and patients' satisfaction. Endodontics, a specialized field of dentistry, focuses on the study, diagnosis, prevention, and treatment of dental disorders affecting the dental pulp, root, and surrounding tissues. A critical aspect of endodontic treatment involves the careful selection of an appropriate endodontic sealer for clinical use, as it significantly influences treatment outcomes. Traditional sealers, such as zinc oxide-eugenol, fatty acid, salicylate, epoxy resin, silicone, and methacrylate resin systems, have been extensively used for decades. However, advancements in endodontics have given rise to bioceramic-based sealers, offering improved properties and addressing new challenges in endodontic therapy. In this review, a classification of these materials and their ideal properties are presented to provide evidence-based guidance to clinicians. Physicochemical properties, including sealing ability, stability over time and space, as well as biological properties such as biocompatibility and antibacterial characteristics, along with cost-effectiveness, are essential factors influencing clinicians' decisions based on individual patient evaluations.
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Affiliation(s)
- Miguel A Ortega
- Department of Medicine and Medical Specialities, Faculty of Medicine and Health Sciences, University of Alcalá, Alcala de Henares, Spain
- Ramón y Cajal Institute of Sanitary Research (IRYCIS), Madrid, Spain.
- Cancer Registry and Pathology Department, Principe de Asturias University Hospital, Alcala de Henares, Spain
| | - Laura Rios
- Universidad San Pablo CEU, Madrid, Spain
| | - Oscar Fraile-Martinez
- Department of Medicine and Medical Specialities, Faculty of Medicine and Health Sciences, University of Alcalá, Alcala de Henares, Spain
- Ramón y Cajal Institute of Sanitary Research (IRYCIS), Madrid, Spain
| | - Diego Liviu Boaru
- Department of Medicine and Medical Specialities, Faculty of Medicine and Health Sciences, University of Alcalá, Alcala de Henares, Spain
| | - Diego De Leon-Oliva
- Department of Medicine and Medical Specialities, Faculty of Medicine and Health Sciences, University of Alcalá, Alcala de Henares, Spain
| | - Silvestra Barrena-Blázquez
- Department of Medicine and Medical Specialities, Faculty of Medicine and Health Sciences, University of Alcalá, Alcala de Henares, Spain
- Ramón y Cajal Institute of Sanitary Research (IRYCIS), Madrid, Spain
| | - Claude Pereda-Cerquella
- Department of Medicine and Medical Specialities, Faculty of Medicine and Health Sciences, University of Alcalá, Alcala de Henares, Spain
| | - Maria J Garrido-Gil
- Department of Medicine and Medical Specialities, Faculty of Medicine and Health Sciences, University of Alcalá, Alcala de Henares, Spain
| | | | - Julia Buján
- Department of Medicine and Medical Specialities, Faculty of Medicine and Health Sciences, University of Alcalá, Alcala de Henares, Spain
- Ramón y Cajal Institute of Sanitary Research (IRYCIS), Madrid, Spain
| | - Natalio García-Honduvilla
- Department of Medicine and Medical Specialities, Faculty of Medicine and Health Sciences, University of Alcalá, Alcala de Henares, Spain
- Ramón y Cajal Institute of Sanitary Research (IRYCIS), Madrid, Spain
| | - Cielo García-Montero
- Department of Medicine and Medical Specialities, Faculty of Medicine and Health Sciences, University of Alcalá, Alcala de Henares, Spain
- Ramón y Cajal Institute of Sanitary Research (IRYCIS), Madrid, Spain.
| | - Antonio Rios-Parra
- Department of Medicine and Medical Specialities, Faculty of Medicine and Health Sciences, University of Alcalá, Alcala de Henares, Spain
- Cancer Registry and Pathology Department, Principe de Asturias University Hospital, Alcala de Henares, Spain
- Ramón y Cajal Institute of Sanitary Research (IRYCIS), Madrid, Spain
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30
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Güçlü ZA, Patat Ş, Coleman NJ. The Impact of Nano- and Micro-Silica on the Setting Time and Microhardness of Conventional Glass-Ionomer Cements. Dent J (Basel) 2024; 12:54. [PMID: 38534278 DOI: 10.3390/dj12030054] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/26/2023] [Revised: 02/07/2024] [Accepted: 02/22/2024] [Indexed: 03/28/2024] Open
Abstract
The objective of this study was to investigate the effect of the incorporation of 2, 4 or 6 wt% of amorphous nano- or micro-silica (Aerosil® OX 50 or Aeroperl® 300 Pharma (Evonik Operations GmbH, Essen, Germany), respectively) on the net setting time and microhardness of Ketac™ Molar (3M ESPE, St. Paul, MN, USA) and Fuji IX GP® (GC Corporation, Tokyo, Japan) glass-ionomer cements (GICs) (viz. KM and FIX, respectively). Both silica particles were found to cause a non-linear, dose-dependent reduction in setting time that was within the clinically acceptable limits specified in the relevant international standard (ISO 9917-1:2007). The microhardness of KM was statistically unaffected by blending with 2 or 4 wt% nano-silica at all times, whereas 6 wt% addition decreased and increased the surface hardness at 1 and 21 days, respectively. The incorporation of 4 or 6 wt% nano-silica significantly improved the microhardness of FIX at 1, 14 and 21 days, with no change in this property noted for 2 wt% addition. Micro-silica also tended to enhance the microhardness of FIX, at all concentrations and times, to an extent that became statistically significant for all dosages at 21 days. Conversely, 4 and 6 wt% additions of micro-silica markedly decreased the initial 1-day microhardness of KM, and the 21-day sample blended at 4 wt% was the only specimen that demonstrated a significant increase in this property. Scanning electron microscopy indicated that the nano- and micro-silica particles were well distributed throughout the composite structures of both GICs with no evidence of aggregation or zoning. The specific mechanisms of the interaction of inorganic nanoparticles with the constituents of GICs require further understanding, and a lack of international standardization of the determination of microhardness is problematic in this respect.
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Affiliation(s)
- Zeynep A Güçlü
- Department of Pediatric Dentistry, Faculty of Dentistry, Erciyes University, Melikgazi, Kayseri 38039, Türkiye
- ERNAM, Erciyes University Nanotechnology Application & Research Center, Erciyes University, Melikgazi, Kayseri 38039, Türkiye
| | - Şaban Patat
- Department of Chemistry, Faculty of Science, Erciyes University, Melikgazi, Kayseri 38010, Türkiye
| | - Nichola J Coleman
- Department of Pediatric Dentistry, Faculty of Dentistry, Erciyes University, Melikgazi, Kayseri 38039, Türkiye
- School of Science, Faculty of Engineering and Science, University of Greenwich, Chatham Maritime, Kent ME4 4TB, UK
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Panetta A, Lopes P, Novaes TF, Rio R, Fernandes GVO, Mello-Moura ACV. Evaluating Glass Ionomer Cement Longevity in the Primary and Permanent Teeth-An Umbrella Review. J Funct Biomater 2024; 15:48. [PMID: 38391901 PMCID: PMC10890125 DOI: 10.3390/jfb15020048] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/08/2024] [Revised: 02/12/2024] [Accepted: 02/16/2024] [Indexed: 02/24/2024] Open
Abstract
The aim of this umbrella review was to evaluate the longevity of glass ionomer cement (GIC) as a restorative material for primary and permanent teeth. Research in the literature was conducted in three databases (MedLine/PubMed, Web of Science, and Scopus). The inclusion criteria were: (1) to be a systematic review of clinical trials that (2) evaluated the clinical longevity of GICs as a restorative material in primary and/or permanent teeth; the exclusion criteria were: (1) not being a systematic review of clinical trials; (2) not evaluating longevity/clinical performance of GICs as a restorative material; and (3) studies of dental restorative materials in teeth with enamel alterations, root caries, and non-carious cervical lesions. Twenty-four eligible articles were identified, and 13 were included. The follow-up periods ranged from 6 months to 6 years. Different types of GICs were evaluated in the included studies: resin-modified glass ionomer cement (RMGIC), compomers, and low- and high-viscosity glass ionomer cement. Some studies compared amalgam and composite resins to GICs regarding longevity/clinical performance. Analyzing the AMSTAR-2 results, none of the articles had positive criteria in all the evaluated requisites, and none of the articles had an a priori design. The criteria considered for the analysis of the risk of bias of the included studies were evaluated through the ROBIS tool, and the results of this analysis showed that seven studies had a low risk of bias; three studies had positive results in all criteria except for one criterion of unclear risk; and two studies showed a high risk of bias. GRADE tool was used to determine the quality of evidence; for the degree of recommendations, all studies were classified as Class II, meaning there was still conflicting evidence on the clinical performance/longevity of GICs and their recommendations compared to other materials. The level of evidence was classified as Level B, meaning that the data were obtained from less robust meta-analyses and single randomized clinical trials. To the best of our knowledge, this is the first umbrella review approaching GIC in permanent teeth. GICs are a good choice in both dentitions, but primary dentition presents more evidence, especially regarding the atraumatic restorative treatment (ART) technique. Within the limitation of this study, it is still questionable if GIC is a good restorative material in the medium/long term for permanent and primary dentition. Many of the included studies presented a high risk of bias and low quality. The techniques, type of GIC, type of cavity, and operator experience highly influence clinical performance. Thus, clinical decision-making should be based on the dental practitioner's ability, each case analysis, and the patient's wishes. More evidence is needed to determine which is the best material for definitive restorations in permanent and primary dentition.
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Affiliation(s)
- Alessandro Panetta
- Faculty of Dental Medicine, Universidade Católica Portuguesa, 3504-505 Viseu, Portugal
| | - Pedro Lopes
- Faculty of Dental Medicine, Universidade Católica Portuguesa, 3504-505 Viseu, Portugal
- Center for Interdisciplinary Research in Health, Faculty of Dental Medicine, Universidade Católica Portuguesa, 3504-505 Viseu, Portugal
| | | | - Rute Rio
- Faculty of Dental Medicine, Universidade Católica Portuguesa, 3504-505 Viseu, Portugal
- Center for Interdisciplinary Research in Health, Faculty of Dental Medicine, Universidade Católica Portuguesa, 3504-505 Viseu, Portugal
| | - Gustavo Vicentis Oliveira Fernandes
- Center for Interdisciplinary Research in Health, Faculty of Dental Medicine, Universidade Católica Portuguesa, 3504-505 Viseu, Portugal
- A. T. Still University-Missouri School of Dentistry & Oral Health, St. Louis, MO 63104, USA
| | - Anna Carolina Volpi Mello-Moura
- Faculty of Dental Medicine, Universidade Católica Portuguesa, 3504-505 Viseu, Portugal
- Center for Interdisciplinary Research in Health, Faculty of Dental Medicine, Universidade Católica Portuguesa, 3504-505 Viseu, Portugal
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Nicholson JW, Sidhu SK, Czarnecka B. Can glass polyalkenoate (glass-ionomer) dental cements be considered bioactive? A review. Heliyon 2024; 10:e25239. [PMID: 38352767 PMCID: PMC10862525 DOI: 10.1016/j.heliyon.2024.e25239] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/27/2023] [Revised: 01/19/2024] [Accepted: 01/23/2024] [Indexed: 02/16/2024] Open
Abstract
Objectives This paper reviews the chemical behaviour of glass polyalkenoate (glass-ionomer) dental cements, both conventional and resin-modified, in contact with natural tissues, with the aim of determining whether these materials can be considered to be bioactive. Data Relevant papers describing the behaviour of bioactive glasses and ceramics, and glass-ionomer (glass polyalkenoate) cements have been identified using PubMed and Science Direct. This has allowed a comparison to be made between the behaviour of glass-ionomers and the speciality glasses and ceramics that are widely classified as bioactive, a designation considered valid for over fifty years. More recent papers concerning bioactive metals and polymers have also been studied and both in vitro and in vivo studies are included. Sources Have included general papers on the chemistry and biological behaviour of bioactive glasses and ceramics, as well as papers on glass-ionomers dealing with (i) ion release, (ii) bonding to the surface of teeth, (iii) influence on surrounding pH and (iv) interaction with bone. Conclusion The literature shows that glass-ionomers (glass polyalkenoates) have three types of behaviour that are similar to those of bioactive glasses as follows: Formation of direct bonds to living tissue (teeth and bones) without fibrous capsule; release of biologically beneficial ions; and change of the local pH. However, in in vitro tests, they do not cause calcium phosphate to precipitate from solutions of simulated body fluid, SBF. Despite this, studies show that, in patients, glass-ionomers interact chemically with hard tissues and this suggests that may indeed be considered bioactive.
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Affiliation(s)
- John W. Nicholson
- Bluefield Centre for Biomaterials, 152-160 City Road, London EC1V 2NX, UK and Dental Physical Sciences, Institute of Dentistry, Barts & The London School of Medicine and Dentistry, Queen Mary University of London, Mile End Road, London, E1 4NS, UK
| | - Sharanbir K. Sidhu
- Centre for Oral Bioengineering, Institute of Dentistry, Barts & The London School of Medicine and Dentistry, Queen Mary University of London, Turner Street, London E1 2AD, UK
| | - Beata Czarnecka
- Department of Biomaterials and Experimental Dentistry, Poznań University of Medical Sciences, Ul. Bukowska 70, 60-812 Poznań, Poland
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Durrant L, Mutahar M, Daghrery AA, Albar NH, Alwadai GS, Alqahtani SA, Al Dehailan LA, Abogazalah NN, Alamoudi NA, Al Moaleem MM. Clinical Performance of Glass Ionomer Cement in Load-Bearing Restorations: A Systematic Review. Med Sci Monit 2024; 30:e943489. [PMID: 38351604 PMCID: PMC10878495 DOI: 10.12659/msm.943489] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/13/2023] [Accepted: 01/17/2024] [Indexed: 02/16/2024] Open
Abstract
Glass ionomer cement (GIC) is a self-adhesive dental restorative material composed of a polyacrylic acid liquid and fluoro-aluminosilicate glass powder. It is commonly used for cementation during dental restoration. This study aimed to systematically review the existing literature regarding the clinical performance of GIC in load-bearing dental restorations. A comprehensive literature search was conducted in EBSCO, PubMed, Embrace, and Cochrane databases. Only randomized controlled trials (RCTs) were included in the search, and a broad search technique was used, where inclusion and exclusion criteria were applied. After a thorough evaluation, 12 RCTs were extensively reviewed, and whether GIC is suitable for load-bearing restorations was determined. Significant variations in staining surface or margin, color match, translucency, esthetic anatomical form, retention, material fracture, marginal adaptation, surface luster, occlusal contour, wear, and approximal anatomical form indicated the unsuitability of GIC. By contrast, significance differences in patient view and periodontal response indicated that GIC is suitable. No significant differences in postoperative sensitivity, recurrence of caries, or tooth integrity were observed. Nevertheless, the results of the review demonstrated that the clinical performance of GIC is comparable to that of traditional restorative materials with regard to the parameters analyzed. GIC is a suitable restorative material for load-bearing restorations regarding surface margin, esthetic anatomical form, material retention and fracture, marginal adaptation, occlusal contour, wear, and approximal anatomical form. It reduces other parameters, such as postoperative sensitivity, recurrence of caries, and tooth integrity.
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Affiliation(s)
- Laura Durrant
- Dental Academy, University of Portsmouth, Portsmouth, UK
| | - Mahdi Mutahar
- Dental Academy, University of Portsmouth, Portsmouth, UK
| | - Arwa A. Daghrery
- Department of Restorative Dental Sciences, College of Dentistry, Jazan University, Jazan, Saudi Arabia
| | - Nassreen H. Albar
- Department of Restorative Dental Sciences, College of Dentistry, Jazan University, Jazan, Saudi Arabia
| | - Ghadeer Saleh Alwadai
- Department of Restorative Dental Science, College of Dentistry, King Khalid University, Abha, Saudi Arabia
| | - Saleh Ali Alqahtani
- Department of Restorative Dental Science, College of Dentistry, King Khalid University, Abha, Saudi Arabia
| | - Laila Adel Al Dehailan
- Department of Restorative Dental Sciences, College of Dentistry, Imam Abdulrahman Bin Faisal University, Dammam, Saudi Arabia
| | - Naif Nabel Abogazalah
- Department of Restorative Dental Science, College of Dentistry, King Khalid University, Abha, Saudi Arabia
| | - Nada Ahmad Alamoudi
- Department of Restorative Dental Science, College of Dentistry, King Khalid University, Abha, Saudi Arabia
| | - Mohammed M. Al Moaleem
- Department of Prosthetic Dental Science, College of Dentistry, Jazan University, Jazan, Saudi Arabia
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Foláyan MO, Virtanen JI, Gaffar B, Abodunrin O, Sun IG, Duangthip D, Kemoli A, Masumo RM, Vukovic A, Al-Batayneh OB, Mfolo T, Schroth RJ, El Tantawi M. Scoping review on the association between early childhood caries and responsible resource consumption and production: exploring Sustainable Development Goal 12. BMC Oral Health 2024; 24:98. [PMID: 38233825 PMCID: PMC10792892 DOI: 10.1186/s12903-023-03831-0] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/14/2023] [Accepted: 12/26/2023] [Indexed: 01/19/2024] Open
Abstract
BACKGROUND The Sustainable Development Goal 12 (SDG12) promotes patterns that minimize waste and maximize resource utilization. It is therefore plausible that preventing Early Childhood Caries (ECC) and promoting oral health can contribute to sustainable consumption. In addition, sustainable consumption and production can contribute to the control of ECC. This scoping review aimed to explore the possible evidence on the link between ECC and the SDG12 targets. METHODS This scoping review identified articles on the link between resource consumption and production and caries according to the PRISMA-ScR guidelines. Three electronic databases (PubMed, Web of Science, and Scopus) were systematically searched in August 2023, using specific search terms. Studies written in English, with full text available, addressing dental caries and linked with waste minimization and resource utilization maximisation, with results that could be extrapolated to ECC in children less than 6 years of age) were included. Descriptive statistics were planned to summarize the categories of retrieved papers. RESULTS The initial search yielded 904 articles, with 863 screened for eligibility after the removal of duplicates. No studies were identified that reported data on an association between responsible consumption and production of resources factors and ECC. CONCLUSION This scoping review did not identify any articles published in English on evidence of the direct associations between ECC and SDG12 targets. However, there is a plausibility of such a link using minimum intervention dentistry for ECC management as a waste prevention and resource utilisation maximization strategy.
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Affiliation(s)
- Morẹ́nikẹ́ Oluwátóyìn Foláyan
- Early Childhood Caries Advocacy Group, Winnipeg, Canada.
- Department of Child Dental Health, Obafemi Awolowo University, Ile-Ife, Nigeria.
| | - Jorma I Virtanen
- Early Childhood Caries Advocacy Group, Winnipeg, Canada
- Faculty of Medicine, University of Bergen, Bergen, Norway
| | - Balgis Gaffar
- Early Childhood Caries Advocacy Group, Winnipeg, Canada
- Department of Preventive Dental Sciences, College of Dentistry, Imam Abdulrahman Bin Faisal University, Dammam, Saudi Arabia
| | | | - Ivy Guofang Sun
- Faculty of Dentistry, The University of Hong Kong, Hong Kong SAR, China
| | - Duangporn Duangthip
- Early Childhood Caries Advocacy Group, Winnipeg, Canada
- Faculty of Dentistry, The University of Hong Kong, Hong Kong SAR, China
| | - Arthur Kemoli
- Early Childhood Caries Advocacy Group, Winnipeg, Canada
- Department of Paediatric Dentistry and Orthodontics, University of Nairobi, Nairobi, Kenya
| | - Ray M Masumo
- Early Childhood Caries Advocacy Group, Winnipeg, Canada
- Department of Community Health and Nutrition, Tanzania Food and Nutrition Centre, Dar es Salaam, Tanzania
| | - Ana Vukovic
- Early Childhood Caries Advocacy Group, Winnipeg, Canada
- Clinic for Pediatric and Preventive Dentistry, School of Dental Medicine, University of Belgrade, Belgrade, Serbia
| | - Ola B Al-Batayneh
- Early Childhood Caries Advocacy Group, Winnipeg, Canada
- Department of Orthodontics, Pediatric and Community Dentistry, College of Dental Medicine, University of Sharjah, Sharjah, United Arab Emirates
- Department of Preventive Dentistry, Faculty of Dentistry, Jordan University of Science and Technology, Irbid, Jordan
| | - Tshepiso Mfolo
- Early Childhood Caries Advocacy Group, Winnipeg, Canada
- Department of Community Dentistry, University of Pretoria, Hatfield, South Africa
| | - Robert J Schroth
- Early Childhood Caries Advocacy Group, Winnipeg, Canada
- Dr. Gerald Niznick College of Dentistry, Rady Faculty of Health Sciences, University of Manitoba, Winnipeg, Canada
| | - Maha El Tantawi
- Early Childhood Caries Advocacy Group, Winnipeg, Canada
- Department of Pediatric Dentistry and Dental Public Health, Faculty of Dentistry, Alexandria University, Alexandria, Egypt
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Mederos M, de León E, García A, Cuevas-Suárez CE, Hernández-Cabanillas JC, Rivera-Gonzaga JA, Grazioli G. In vitro characterization of a novel resin-based restorative material containing alkaline fillers. J Appl Oral Sci 2024; 32:e20230219. [PMID: 38232277 PMCID: PMC10984576 DOI: 10.1590/1678-7757-2023-0219] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/26/2023] [Revised: 11/26/2023] [Accepted: 12/02/2023] [Indexed: 01/19/2024] Open
Abstract
OBJECTIVE In this study, a comparative evaluation of the physicochemical properties of Cention N and other direct restorative materials was performed. Three restorative materials-a resin-modified glass ionomer (Fuji II LC), an alkasite-based resinous material (Cention N), and a resin composite (Tetric N Ceram)-were characterized in terms of degree of conversion, Knoop hardness number (KHN) ratio, flexural strength, elastic modulus, water sorption, water solubility, microshear bond strength to dentin, immediate microleakage, and radiopacity. METHODOLOGY The microshear bond strength to dentin and microleakage of Cention N were evaluated with and without the application of an adhesive system (Tetric N Bond Universal). A one-way ANOVA test was used to analyze the data in terms of degree of conversion, KHN ratio, water sorption, water solubility, microshear bond strength to dentin, and radiopacity. A two-way ANOVA test (carried out considering the material type and ethanol aging as factors) was used to analyze the data in terms of flexural strength and elastic modulus. The Kruskal-Wallis test was used to statistically analyze the data on microleakage. A significance level of α=0.05 was used for all tests. RESULTS Fuji II LC was found to have the highest degree of conversion, water sorption, and microleakage, as well as the lowest flexural strength. Cention N had the highest solubility; when used with an adhesive system, it achieved bond strength and microleakage similar to those of the Tetric N Ceram composite. Tetric N Ceram had the highest degree of conversion, KHN ratio, and radiopacity. Conclusion: The properties of Cention N validate its efficacy as an alternative direct restorative material when used in conjunction with an adhesive system.
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Affiliation(s)
- Matias Mederos
- Universidad de la RepúbicaFacultad de OdontologíaDepartamento de Odontología Preventiva y RestauradoraMontevideoUruguayUniversidad de la Repúbica, Facultad de Odontología, Departamento de Odontología Preventiva y Restauradora, Area de Materiales Dentales, Montevideo, Uruguay
| | - Elisa de León
- Universidad de la RepúbicaFacultad de OdontologíaDepartamento de Odontología Preventiva y RestauradoraMontevideoUruguayUniversidad de la Repúbica, Facultad de Odontología, Departamento de Odontología Preventiva y Restauradora, Area de Materiales Dentales, Montevideo, Uruguay
| | - Andrés García
- Universidad de la RepúbicaFacultad de OdontologíaDepartamento de Odontología Preventiva y RestauradoraMontevideoUruguayUniversidad de la Repúbica, Facultad de Odontología, Departamento de Odontología Preventiva y Restauradora, Area de Materiales Dentales, Montevideo, Uruguay
| | - Carlos Enrique Cuevas-Suárez
- Universidad Autónoma del Estado de HidalgoÁrea académica de Odontología, Laboratorio de Materiales DentalesPachucaMéxicoUniversidad Autónoma del Estado de Hidalgo, Área académica de Odontología, Laboratorio de Materiales Dentales, Pachuca, México.
| | - Juan Carlos Hernández-Cabanillas
- Universidad Autónoma de Baja CaliforniaFacultad de Ciencias de la SaludTijuanaMéxicoUniversidad Autónoma de Baja California, Blvd Universitario, Facultad de Ciencias de la Salud, Tijuana, México.
| | - José Alejandro Rivera-Gonzaga
- Universidad Autónoma del Estado de HidalgoÁrea académica de Odontología, Laboratorio de Materiales DentalesPachucaMéxicoUniversidad Autónoma del Estado de Hidalgo, Área académica de Odontología, Laboratorio de Materiales Dentales, Pachuca, México.
| | - Guillermo Grazioli
- Universidad de la RepúbicaFacultad de OdontologíaDepartamento de Odontología Preventiva y RestauradoraMontevideoUruguayUniversidad de la Repúbica, Facultad de Odontología, Departamento de Odontología Preventiva y Restauradora, Area de Materiales Dentales, Montevideo, Uruguay
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Elmenshawy MZ, El-Haliem HA, Mowafy AM, Hamama HH. Effect of ethanolic extract of propolis on antibacterial and microshear bond strength of glass-ionomer restorations to dentin. Heliyon 2024; 10:e23710. [PMID: 38187267 PMCID: PMC10767503 DOI: 10.1016/j.heliyon.2023.e23710] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/24/2023] [Revised: 11/17/2023] [Accepted: 12/12/2023] [Indexed: 01/09/2024] Open
Abstract
Objectives This study was conducted to evaluate the effect of ethanolic extract of propolis on antibacterial and microshear bond strength of glass ionomer restorations to dentin. Materials and methods Conventional glass ionomer cement (Equia forte, GC Tokyo, Japan), resin-modified glass ionomer (Fuji II LC, GC Tokyo, Japan) and propolis powder (dried extract from honey bees) materials were used in this study. Both conventional glass ionomer and resin-modified glass ionomer were modified by two different concentrations of ethanolic extract of propolis (10 % and 25 % EEP). For antibacterial test, Streptococcus mutans strain was spread on agar petri dishes using a sterile swab. Discs of both glass ionomer restorative materials (without adding EEP, with 10 % EEP and with 25 % EEP) were fabricated within the agar plates. Antibacterial activity was evaluated by measuring the inhibition zones around each disc. For microshear bond strength test, 60 healthy human permanent molars were prepared by cutting occlusal surface and expose the dentin at the height of contour of all teeth then conditioned using poly acrylic acid conditioner, both glass ionomer restorative materials (without adding EEP, with 10 % EEP and with 25 % EEP) were mixed and applied on conditioned dentin surface by using tygon tube. Microshear bond strength was evaluated by the universal testing machine. Results Two-way ANOVA test revealed that both glass ionomer type and different concentrations of EEP had significant effect on the antibacterial test results and microshear bond strength values (p < 0,05). Glass ionomer restorative material with 25%EEP had the highest antibacterial values whereas glass ionomer restorative material without modifications (control groups) had the lowest values. Resin-modified glass ionomer without any modification (control group) had the highest bond strength while resin-modified glass ionomer with 25%EEP had the lowest bond strength. Conclusions Incorporation of ethanolic extract of propolis to glass ionomer restorative material increases the antibacterial effects of both conventional GIC and RMGI. Inspite of this advantage, it seems that it has deleterious effect on microshear bond strength to dentin.
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Affiliation(s)
- Marwa Z. Elmenshawy
- Conservative Dentistry Department, Faculty of Dentistry, Mansoura University, Mansoura, Egypt
| | - Huda Abed El-Haliem
- Conservative Dentistry Department, Faculty of Dentistry, Mansoura University, Mansoura, Egypt
| | - Amr M. Mowafy
- Botany Department, Faculty of Science, Mansoura University, Mansoura, Egypt
- Department of Biological Sciences, Faculty of Science, New-Mansoura University, New-Mansoura, Egypt
| | - Hamdi H. Hamama
- Conservative Dentistry Department, Faculty of Dentistry, Mansoura University, Mansoura, Egypt
- Faculty of Dentistry, New-Mansoura University, New-Mansoura, Egypt
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El Zawawy NA, El-Safty S, Kenawy ER, Ibrahim Salem S, Ali SS, Mahmoud YAG. Exploring the biomedical potential of a novel modified glass ionomer cement against the pandrug-resistant oral pathogen Candida albicans SYN-01. J Oral Microbiol 2023; 15:2195741. [PMID: 37008537 PMCID: PMC10064826 DOI: 10.1080/20002297.2023.2195741] [Citation(s) in RCA: 1] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 04/03/2023] Open
Abstract
Dental caries is an infectious disease that is a major concern for dentists. Streptococci and Lactobacilli were long thought to be the primary etiology responsible for caries. Candida albicans with acidogenic and aciduric characteristics has recently been implicated in the onset and progression of cariogenic lesions. Moreover, due to the increased resistance to common antimicrobials, the discovery of innovative candidates is in high demand. Therefore, our study might be the first report that explores the efficacy of glass ionomer cement (GIC) incorporated with a newly modified carboxylated chitosan derivative (CS-MC) against multidrug-resistant (MDR) and/or pandrug resistant (PDR) C. albicans isolated from the oral cavity. In this work, four CS-MC-GIC groups with different concentrations were formulated. Group four (CS-MC-GIC-4) gave a significant performance as an anticandidal agent against selected PDR Candida strain, with an obvious decrease in its cell viability and high antibiofilm activity. It also, enhanced all the mechanical properties and supports cell viability of Vero cells as a nontoxic compound. Moreover, CS-MC-GIC-4 inhibited neuraminidases completely, which might provide a novel mechanism to prevent dental/oral infections. Thus, findings in this study open up new prospect of the utilization of CS-MC-GIC as a novel dental filling material against oral drug-resistant Candida.
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Affiliation(s)
- Nessma A. El Zawawy
- Botany Department, Faculty of Science Tanta University, Tanta, Egypt
- CONTACT Nessma A. El Zawawy Botany Department, Faculty of Science, Tanta University, Tanta31527, Egypt
| | - Samy El-Safty
- Biomaterials Department, Faculty of Dentistry, Tanta University, Tanta, Egypt
| | - El-Refaie Kenawy
- Polymer Research Group, Department of Chemistry, Faculty of Science Tanta University, Tanta, Egypt
| | - Sara Ibrahim Salem
- Polymer Research Group, Department of Chemistry, Faculty of Science Tanta University, Tanta, Egypt
| | - Sameh S. Ali
- Botany Department, Faculty of Science Tanta University, Tanta, Egypt
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Singer L, Bourauel C. Herbalism and glass-based materials in dentistry: review of the current state of the art. JOURNAL OF MATERIALS SCIENCE. MATERIALS IN MEDICINE 2023; 34:60. [PMID: 37962680 PMCID: PMC10645656 DOI: 10.1007/s10856-023-06764-w] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 06/27/2023] [Accepted: 10/26/2023] [Indexed: 11/15/2023]
Abstract
Half a million different plant species are occurring worldwide, of which only 1% has been phytochemically considered. Thus, there is great potential for discovering novel bioactive compounds. In dentistry, herbal extracts have been used as antimicrobial agents, analgesics, and intracanal medicaments. Glass-ionomer cement (GIC) and bioactive glass (BAG) are attractive materials in dentistry due to their bioactivity, adhesion, and remineralisation capabilities. Thus, this review summarizes the evidence around the use of phytotherapeutics in dental glass-based materials. This review article covers the structure, properties, and clinical uses of GIC and BAG materials within dentistry, with an emphasis on all the attempts that have been made in the last 20 years to enhance their properties naturally using the wisdom of traditional medicines. An extensive electronic search was performed across four databases to include published articles in the last 20 years and the search was concerned only with the English language publications. Publications that involved the use of plant extracts, and their active compounds for the green synthesis of nanoparticles and the modification of GIC and BAG were included up to May 2023. Plant extracts are a potential and effective candidate for modification of different properties of GIC and BAG, particularly their antimicrobial activities. Moreover, natural plant extracts have shown to be very effective in the green synthesis of metal ion nanoparticles in an ecological, and easy way with the additional advantage of a synergistic effect between metal ions and the phytotherapeutic agents. Medicinal plants are considered an abundant, cheap source of biologically active compounds and many of these phytotherapeutics have been the base for the development of new lead pharmaceuticals. Further research is required to assess the safety and the importance of regulation of phytotherapeutics to expand their use in medicine.
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Affiliation(s)
- Lamia Singer
- Oral Technology, University Hospital Bonn, 53111, Bonn, North Rhine-Westphalia, Germany.
- Department of Orthodontics, University Hospital Bonn, 53111, Bonn, North Rhine-Westphalia, Germany.
| | - Christoph Bourauel
- Oral Technology, University Hospital Bonn, 53111, Bonn, North Rhine-Westphalia, Germany
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Messer-Hannemann P, Böttcher H, Henning S, Schwendicke F, Effenberger S. Concept of a Novel Glass Ionomer Restorative Material with Improved Mechanical Properties. J Funct Biomater 2023; 14:534. [PMID: 37998103 PMCID: PMC10672254 DOI: 10.3390/jfb14110534] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/26/2023] [Revised: 10/12/2023] [Accepted: 10/18/2023] [Indexed: 11/25/2023] Open
Abstract
The objective of this study was to transfer the concept of ductile particle reinforcement to restorative dentistry and to introduce an innovative glass ionomer material that is based on the dispersion of PEG-PU micelles. It was hypothesized that reinforcing a conventional glass ionomer in this way increases the flexural strength and fracture toughness of the material. Flexural strength and fracture toughness tests were performed with the novel reinforced and a control glass ionomer material (DMG, Hamburg, Germany) to investigate the influence of the dispersed micelles on the mechanical performance. Transmission electron microscopy was used to identify the dispersed micelles. Fracture toughness and flexural strength were measured in a 3-point-bending setup using a universal testing machine. Before performing both tests, the specimens were stored in water at 37 °C for 23 h. The fracture toughness (MPa∙m0.5) of the novel glass ionomer material (median: 0.92, IQR: 0.89-0.94) was significantly higher than that of the control material (0.77, 0.75-0.86, p = 0.0078). Significant differences were also found in the flexural strength (MPa) between the reinforced (49.7, 45.2-57.8) and control material (41.8, 40.6-43.5, p = 0.0011). Reinforcing a conventional glass ionomer with PEG-PU micelles improved the mechanical properties and may expand clinical applicability of this material class in restorative dentistry.
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Affiliation(s)
| | - Henrik Böttcher
- DMG Dental-Material Gesellschaft mbH, 22547 Hamburg, Germany
| | - Sven Henning
- Fraunhofer Institute for Microstructure of Materials and Systems IMWS, 06120 Halle (Saale), Germany
| | - Falk Schwendicke
- Department of Oral Diagnostics, Digital Health and Health Services Research, Charité-Universitätsmedizin Berlin, 14197 Berlin, Germany
| | - Susanne Effenberger
- DMG Dental-Material Gesellschaft mbH, 22547 Hamburg, Germany
- Department of Oral Diagnostics, Digital Health and Health Services Research, Charité-Universitätsmedizin Berlin, 14197 Berlin, Germany
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Hamdy TM. Evaluation of compressive strength, surface microhardness, solubility and antimicrobial effect of glass ionomer dental cement reinforced with silver doped carbon nanotube fillers. BMC Oral Health 2023; 23:777. [PMID: 37872523 PMCID: PMC10591371 DOI: 10.1186/s12903-023-03542-6] [Citation(s) in RCA: 4] [Impact Index Per Article: 4.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/22/2023] [Accepted: 10/14/2023] [Indexed: 10/25/2023] Open
Abstract
BACKGROUND Conventional glass ionomer cements (GICs) are currently the most widely used dental cements due to their chemical bonding into tooth structure, release of fluoride, and ease of manipulation and usage. One of their drawbacks is their low mechanical properties and high solubility. Carbon nanotubes (CNTs) could be utilized in dentistry due to their several potential applications. CNTs can be used as fillers to reinforce polymers or other materials. Additionally, silver (Ag) nanoparticles are highly effective at preventing dental biofilm and enhancing mechanical properties. OBJECTIVES The aim of the present in vitro study is to evaluate the compressive strength, surface microhardness, solubility, and antimicrobial effect of the conventional GIC reinforced with manual blending of 0.01 wt.% Ag doped CNT fillers. METHODS The control group was prepared by mixing dental GIC powder with their liquid. The innovatively reinforced dental GIC group was prepared by incorporating 0.01 wt.% Ag doped CNT fillers into the GIC powder prior to liquid mixing. Chemical characterization was performed by XRF. While, physical characterization was done by measuring film thickness and initial setting time. The compressive strength, surface microhardness, solubility, and antimicrobial effect against Streptococcus mutans bacteria using an agar diffusion test were measured. The data was statistically analyzed using independent sample t-tests to compare mean values of compressive strength, surface microhardness, solubility, and antimicrobial activity (p ≤ 0.05). RESULTS The results revealed that innovative reinforced GIC with 0.01 wt.% Ag doped CNT fillers showed higher mean compressive strength, surface microhardness, and antimicrobial effect values than the conventional GIC control group; there was no significant difference between different groups in relation to the solubility test (P ≤ 0.05). CONCLUSION The innovatively reinforced GIC with 0.01 wt.% Ag doped CNT fillers had the opportunity to be used as an alternative to conventional GIC dental cements.
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Affiliation(s)
- Tamer M Hamdy
- Restorative and Dental Materials Department, Oral and Dental Research Institute, National Research Centre (NRC), Giza, 12622, Dokki, Egypt.
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Alzahrani B, Alshabib A, Awliya W. The Depth of Cure, Sorption and Solubility of Dual-Cured Bulk-Fill Restorative Materials. MATERIALS (BASEL, SWITZERLAND) 2023; 16:6673. [PMID: 37895655 PMCID: PMC10608248 DOI: 10.3390/ma16206673] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Received: 09/10/2023] [Revised: 10/07/2023] [Accepted: 10/11/2023] [Indexed: 10/29/2023]
Abstract
This study aimed to examine depth of cure (DoC), mass change, water sorption and solubility of dual-cured bulk-fill restorative materials (Surfil One and Activa) in comparison with a light-cured bulk-fill composite (Filtek One Bulk-Fill) and a resin-modified glass ionomer (Fuji II LC). Twenty specimens were prepared of each material using stainless steel molds designed with a slot (8 × 4 × 2 mm) and irradiated for either 20 or 40 s. The Vickers hardness (VHN) was measured at every 0.5 mm to assess the DoC after 24 h of storage at 37 °C. The depth of cure was reported as the depth corresponding to 80% of the maximum Vickers hardness. Disc-shaped specimens were prepared of each material (n = 5) to investigate mass change, sorption and solubility after 4 months of water storage. The data were analyzed using a two-way and one-way analysis of variance (ANOVA) followed by the Tukey post hoc test (p ≤ 0.05). Fuji II LC had the greatest DoC while Activa had the lowest. The two different irradiation times did not demonstrate a significant difference in DoC for all dual-cured materials (p > 0.05). Fuji II LC had the highest sorption while Filtek One showed the lowest. Surefil One and Fuji II LC had a negative solubility. This study concluded that dual-cured materials showed different depth of cure values despite having the same setting reaction. Both materials exhibited a high water sorption, which might jeopardize their dimensional stability and effect their clinical performance.
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Affiliation(s)
- Bashayer Alzahrani
- Department of Restorative Dentistry, College of Dentistry, King Saud University P.O. Box 60169, Riyadh 11545, Saudi Arabia;
| | - Abdulrahman Alshabib
- Department of Restorative Dentistry, College of Dentistry, King Saud University P.O. Box 60169, Riyadh 11545, Saudi Arabia;
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Bharate RR, Patel AS, Reche A, Dhimole RC. A Comparative Evaluation of Postoperative Sensitivity Between Cention-N and Resin-Modified Glass Ionomer Cement in Class V Cavity: An In Vivo Study. Cureus 2023; 15:e47801. [PMID: 38021989 PMCID: PMC10676706 DOI: 10.7759/cureus.47801] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/08/2023] [Accepted: 10/27/2023] [Indexed: 12/01/2023] Open
Abstract
Aim This research aimed to assess and compare the postoperative sensitivity in class V cavity when restored with Cention-N and resin-modified glass ionomer cement (RMGIC). This study used the Schiff scale to assess sensitivity in the class V cavity. Materials and methods This was an in vivo study performed in the Department of Conservative Dentistry and Endodontics, Sharad Pawar Dental College and Hospital, Sawangi Meghe, Maharashtra. Patients included in this study were randomly selected from regular outpatient departments diagnosed with class V cavities and referred for restorative treatment. These patients were segregated into Group A and Group B. Demographic information, detailed history of any medical condition, dental history, any allergy related to resins, and another group of drugs were recorded. The in vivo study involved 36 patients, 18 in each group, who presented at Sharad Pawar Dental College and Hospital. Inform consent was taken from all patients. The subjects' responses were evaluated using a Schiff analog scale to assess postoperative sensitivity to an air blast stimulus. Results The study included all 36 patients aged between 18 and 40 years. All 36 patients were segregated into two distinct groups. Two groups of 18 patients in each group were restored with Cention-N and RMGIC in groups A and B, respectively. It was determined that RMGIC exhibits a relatively higher incidence of postoperative sensitivity than Cention-N. It was determined that the difference was statistically relevant. Conclusion Considering the limitations of this study, it can be concluded that RMGIC shows more postoperative sensitivity than other groups on the first, second, and seventh days. Thus, it is concluded that Cention-N can be a superior alternative to RMGIC.
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Affiliation(s)
- Rudra R Bharate
- Conservative Dentistry and Endodontics, Sharad Pawar Dental College, Datta Meghe Institute of Higher Education and Research, Wardha, IND
| | - Aditya S Patel
- Conservative Dentistry and Endodontics, Sharad Pawar Dental College, Datta Meghe Institute of Higher Education and Research, Wardha, IND
| | - Amit Reche
- Public Health Dentistry, Sharad Pawar Dental College, Datta Meghe Institute of Higher Education and Research, Wardha, IND
| | - Rishika C Dhimole
- Conservative Dentistry and Endodontics, Sharad Pawar Dental College, Datta Meghe Institute of Higher Education and Research, Wardha, IND
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Ghodrati P, Sharafeddin F. Evaluation of the effect of nano-graphene oxide on shear bond strength of conventional and resin-modified glass ionomer cement. Clin Exp Dent Res 2023; 9:851-858. [PMID: 37737558 PMCID: PMC10582219 DOI: 10.1002/cre2.789] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/06/2023] [Revised: 07/22/2023] [Accepted: 09/04/2023] [Indexed: 09/23/2023] Open
Abstract
OBJECTIVES Recently, nano-graphene oxide (nGO), a material with unique mechanical properties, has been introduced to improve the properties of glass ionomer cement (GIC). The purpose of this study was to investigate the effect of adding nGO on the shear bond strength (SBS) of conventional (CGIC) and resin-modified GIC (RMGIC). METHODS Sixty intact molars were mounted and their occlusal surface was cut at a depth of 1 mm below the dentinoenamel junction. 1 wt.% and 2 wt.% of nGO (US Research Nanomaterials, Inc.) were added to CGIC and RMGIC (GC Corporation). The samples were randomly divided into six groups (n = 10), including 1: CGIC, 2: CGIC + 1% GO, 3: CGIC + 2% GO, 4: RMGIC, 5: RMGIC + 1% GO, and 6: RMGIC + 2% GO. Plastic molds were placed on the surface of the dentin pretreated with 10% polyacrylic acid (GC Corporation) and filled with prepared cement according to the manufacturer's instruction. After 24 h of storage in an incubator, the SBS test was done by the universal testing machine. Data were analyzed using two-way analysis of variance and post hoc Tukey tests (p < .05). RESULTS In the group of CGIC, mean SBS was significantly lower than all other study groups (p < .001), and groups 5 (RMGIC + 1% GO) and 6 (RMGIC + 2% GO) showed significantly higher values compared to all other study groups (p < .001). However, the difference between groups 2 and 3, as well as the difference between groups 5 and 6, was not significant (p = .999 andp = .994, respectively). RMGI groups had significantly higher SBS than their corresponding CGIC groups. CONCLUSIONS The addition of 1% and 2% nGO significantly increased the SBS of CGIC and RMGIC to the dentin, which can be considered as a promising point for wider clinical application of this material.
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Affiliation(s)
- Parisa Ghodrati
- Department of Operative Dentistry, Biomaterials Research Center, School of DentistryShiraz University of Medical SciencesShirazIran
| | - Farahnaz Sharafeddin
- Department of Operative Dentistry, School of DentistryShiraz University of Medical SciencesShirazIran
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Tsolianos I, Nikolaidis AK, Koulaouzidou EA, Achilias DS. An Evaluation of Experimental Calcium Ion-Leachable Nanocomposite Glass Ionomer Cements. NANOMATERIALS (BASEL, SWITZERLAND) 2023; 13:2690. [PMID: 37836331 PMCID: PMC10574207 DOI: 10.3390/nano13192690] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Received: 08/30/2023] [Revised: 09/28/2023] [Accepted: 09/29/2023] [Indexed: 10/15/2023]
Abstract
Glass ionomer cements (GICs) are among the main restorative dental materials used broadly in daily clinical practice. The incorporation of clay nanoparticles as reinforcing agents is one potential approach to improving GIC properties. This study aims to investigate whether the incorporation of calcium-modified clay (Ca-clay) nanoparticles in conventional GICs alters their structural characteristics, along with their physicochemical and mechanical properties. Scanning electron microscopy (SEM) and X-ray diffraction (XRD) analyses were performed to assess the surface characterization of GIC nanocomposites, whereas a setting reaction was carried out via an attenuated total reflection Fourier transform infrared spectrometer (ATR-FTIR). A universal testing machine was used for compression tests, while calcium ion release was quantified using inductively coupled plasma optical emission spectrometry (ICP-OES). GIC composite groups reinforced with Ca-clay were found to release a fine amount of calcium ions (5.06-9.91 ppm), with the setting reaction being unaffected for low Ca-clay loadings. The median compressive strength of 3 wt% in the Ca-clay group (68.97 MPa) was nearly doubled compared to that of the control group (33.65 MPa). The incorporation of Ca-clay nanoparticles in GICs offers a promising alternative among dental restorative materials regarding their chemical and mechanical properties.
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Affiliation(s)
- Ioannis Tsolianos
- Division of Dental Tissues’ Pathology and Therapeutics (Basic Dental Sciences, Endodontology and Operative Dentistry), School of Dentistry, Aristotle University Thessaloniki, 541 24 Thessaloniki, Greece; (I.T.); (E.A.K.)
| | - Alexandros K. Nikolaidis
- Division of Dental Tissues’ Pathology and Therapeutics (Basic Dental Sciences, Endodontology and Operative Dentistry), School of Dentistry, Aristotle University Thessaloniki, 541 24 Thessaloniki, Greece; (I.T.); (E.A.K.)
| | - Elisabeth A. Koulaouzidou
- Division of Dental Tissues’ Pathology and Therapeutics (Basic Dental Sciences, Endodontology and Operative Dentistry), School of Dentistry, Aristotle University Thessaloniki, 541 24 Thessaloniki, Greece; (I.T.); (E.A.K.)
| | - Dimitris S. Achilias
- Laboratory of Polymer and Color Chemistry and Technology, Department of Chemistry, Aristotle University Thessaloniki, 541 24 Thessaloniki, Greece;
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Bloomquist R, Villalobos V, Patel C, Olson J, Rueggeberg F. Effect of RMGI Roughness and Dentin Bonding Primer on Shear Bond Strength of Sandwich-type Restorations. Oper Dent 2023; 48:546-551. [PMID: 37415337 DOI: 10.2341/22-130-l] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Accepted: 03/13/2023] [Indexed: 07/08/2023]
Abstract
BACKGROUND The open sandwich technique is a reliable alternative to amalgam placement in deep proximal box preparations, where proper isolation and enamel bonding may not be possible. It is often difficult to prepare the box for composite placement without affecting the resin-modified glass ionomer (RMGI) that has been placed in the gingival portion. We hypothesized that RMGI surfaces that are roughened or those that use all steps in the manufacturing bonding protocol, including the priming solution, applied before placing a bonded composite increment, would have greater composite/RMGI shear bond strength. DESIGN AND METHODS Shear bond strengths (SBS) of RMGI tested in the presence and absence of SiC roughening and primer-coating were tested using a fourth-generation dentin bonding agent to composite after thermocycling. Twenty specimens for four test conditions were fabricated and investigated. Data were subjected to a two-way ANOVA and the Holm-Sidak post-hoc test. RESULTS Placing dentin primer on unabraded RMGI provided a statistically significant improvement in SBS, but only modestly. Furthermore, because bond failure consistently occurred within the RMGI itself, none of the surface modifications have a clinically relevant impact on SBS at the RMGI to the composite interface. CONCLUSIONS Clinicians should be aware that they need not avoid RMGI abrasion and do not need to incorporate all components of a fourth-generation bonding system when covering an RMGI sandwich layer with composite.
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Affiliation(s)
- R Bloomquist
- *Ryan Bloomquist, DMD, PhD, MBA, Department of Restorative Sciences, Dental College of Georgia, Augusta University, Augusta, GA, USA
| | - V Villalobos
- Vanessa Villalobos, DMD, Department of Restorative Sciences, Dental College of Georgia, Augusta University, Augusta, GA, USA
| | - C Patel
- Charmi Patel, DMD, Department of Restorative Sciences, Dental College of Georgia, Augusta University, Augusta, GA, USA
| | - J Olson
- Jenni Olson, DMD, Department of Restorative Sciences, Dental College of Georgia, Augusta University, Augusta, GA, USA
| | - F Rueggeberg
- Frederick Rueggeberg, DDS, MS, Department of Restorative Sciences, Dental College of Georgia, Augusta University, Augusta, GA, USA
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Opdam NJM, VanBeek V, VanBeek W, Loomans BAC, Pereira-Cenci T, Cenci MS, Laske M. Long term clinical performance of 'open sandwich' and 'total-etch' Class II composite resin restorations showing proximal deterioration of glass-ionomer cement. Dent Mater 2023; 39:800-806. [PMID: 37468394 DOI: 10.1016/j.dental.2023.07.001] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/28/2023] [Revised: 06/30/2023] [Accepted: 07/02/2023] [Indexed: 07/21/2023]
Abstract
OBJECTIVES To compare clinical performance of resin composite posterior Class-II restorations placed with etch-and-rinse adhesive or open sandwich technique using glass-ionomer cement. METHODS Data on Class II restorations placed by one dentist between 1990 and 2016 were collected from patient files, including caries risk, tooth related variables, applied materials and dates of last check-up visit and restoration placement. Open sandwich restorations were placed before 2001, while after 2001, a total-etch technique using etch-and-rinse 3-step adhesive was used when placing a Class II composite restoration. For statistical analysis, Kaplan-Meier statistics and a multilevel Cox-Regression was conducted (p < 0.05). Annual Failures Rates (AFR) were calculated. RESULTS 675 Class II restorations were placed in 91 patients, 491 total-etch restorations (observation time 2-18 y), and 184 open sandwich restorations (observation time 19-29 y) showing AFRs at 15 years as 2.9 % for total-etch and 9.7 % for open sandwich restorations. Secondary caries as failure was equally distributed among the 2 groups and 27 % of the failures in the open sandwich group were due to proximal deterioration of glass-ionomer cement. The Cox-regression showed a significant higher risk for failure for the open sandwich technique compared to total-etch class-II composite restorations (HR = 2.9; p < 0.001). SIGNIFICANCE Application of glass-ionomer cement using the open sandwich technique cannot be recommended for class-II restorations as being more complex and showing poorer clinical performance.
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Affiliation(s)
- Niek J M Opdam
- Department of Dentistry, Radboud University Medical Center, Radboud Institute for Health Sciences, Philips van Leydenlaan 25, PO Box 9101, 6500 HB Nijmegen, the Netherlands.
| | - Veerle VanBeek
- Department of Dentistry, Radboud University Medical Center, Radboud Institute for Health Sciences, Philips van Leydenlaan 25, PO Box 9101, 6500 HB Nijmegen, the Netherlands; Private General Dental Practice, Groenelaan 128, 2675 RS Honselersdijk, the Netherlands
| | - Willem VanBeek
- Private General Dental Practice, Groenelaan 128, 2675 RS Honselersdijk, the Netherlands
| | - Bas A C Loomans
- Department of Dentistry, Radboud University Medical Center, Radboud Institute for Health Sciences, Philips van Leydenlaan 25, PO Box 9101, 6500 HB Nijmegen, the Netherlands
| | - Tatiana Pereira-Cenci
- Department of Dentistry, Radboud University Medical Center, Radboud Institute for Health Sciences, Philips van Leydenlaan 25, PO Box 9101, 6500 HB Nijmegen, the Netherlands
| | - Maximiliano Sergio Cenci
- Department of Dentistry, Radboud University Medical Center, Radboud Institute for Health Sciences, Philips van Leydenlaan 25, PO Box 9101, 6500 HB Nijmegen, the Netherlands
| | - Mark Laske
- Department of Dentistry, Radboud University Medical Center, Radboud Institute for Health Sciences, Philips van Leydenlaan 25, PO Box 9101, 6500 HB Nijmegen, the Netherlands
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Nicholson JW, Sidhu SK, Czarnecka B. Fluoride exchange by glass-ionomer dental cements and its clinical effects: a review. Biomater Investig Dent 2023; 10:2244982. [PMID: 37615013 PMCID: PMC10444020 DOI: 10.1080/26415275.2023.2244982] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/05/2023] [Accepted: 08/01/2023] [Indexed: 08/25/2023] Open
Abstract
The topic of fluoride release and uptake by glass-ionomer (glass polyalkenoate) dental cements is reviewed. The study was based on a literature search carried out using PubMed. The main key words used were glass-ionomer and fluoride, and further refinements were made by adding the keywords anti-microbial, anti-caries and remineralization. Papers were selected from the initial search, which concentrated on fundamental aspects of fluoride release, including kinetics and the influence of the cement composition, and resulting clinical performance against caries. Other relevant papers were cited where they added useful and relevant data. From these published papers, it was possible to explain the detailed mechanism of fluoride release by glass-ionomer cements and also its uptake. Fluoride release has been shown to be a two-step process. In neutral solutions, the steps can be divided into early wash-out and long-term diffusion. In acid conditions, the early wash-out remains, though with greater amounts of fluoride released, and the long-term release becomes one of slow dissolution. The effect of fluoride on the viability of oral micro-organisms has been described, and glass-ionomers have been shown to release sufficient fluoride to reduce the size and viability of adjacent populations of oral bacteria. The effect of low levels of fluoride on the remineralization of tooth tissue has been considered. Levels needed to increase remineralization are much lower than those needed to adversely affect oral bacteria, from which we conclude that glass-ionomers release sufficient fluoride to promote remineralization. Despite this, there remains uncertainty about their overall contribution to sound oral health, given the widespread use of other sources of fluoride, such as toothpastes.
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Affiliation(s)
- John W. Nicholson
- Dental Materials Unit, Bart’s and the London Institute of Dentistry, Queen Mary University of London, London, UK
- Bluefield Centre for Biomaterials, London, UK
| | - Sharanbir K. Sidhu
- Centre for Oral Bioengineering, Institute of Dentistry, Bart’s & The London School of Medicine and Dentistry, Queen Mary University of London, London, UK
| | - Beata Czarnecka
- Department of Biomaterials and Experimental Dentistry, University of Medical Sciences, Poznań, Poland
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Ghilotti J, Mayorga P, Sanz JL, Forner L, Llena C. Remineralizing Ability of Resin Modified Glass Ionomers (RMGICs): A Systematic Review. J Funct Biomater 2023; 14:421. [PMID: 37623665 PMCID: PMC10455182 DOI: 10.3390/jfb14080421] [Citation(s) in RCA: 3] [Impact Index Per Article: 3.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/16/2023] [Revised: 08/09/2023] [Accepted: 08/09/2023] [Indexed: 08/26/2023] Open
Abstract
The selective caries removal approach leads to the need to use materials with the ability to remineralize remaining partially demineralized dentin. Among the materials proposed are resin-modified glass ionomer cements (RMGICs). The aim of this systematic review was to evaluate, based on in vitro experimental studies, whether RMGICs are suitable for remineralizing affected dentin. A systematic literature search was performed in four databases, followed by article selection, data extraction, and quality assessment. Studies assessing the remineralizing potential of RMGICs on dentin were included in our review. Studies which compared such properties between different RMGICs or with other materials were also eligible. The studies report the remineralizing ability of RMGICs, albeit with differences between different commercial products. RMGICs show a similar ability to conventional GICs to remineralize affected dentin, fulfilling the function for which they are designed. Moreover, the incorporation of additives, such as bioactive glass (BAG) or CCP-ACP, improves their remineralizing potential. The results of this review support the use of RMGICs as restorative materials after selective caries removal.
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Affiliation(s)
| | | | - José Luis Sanz
- Department of Stomatology, Faculty of Medicine and Dentistry, Universitat de València, 46010 Valencia, Spain
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Wylie ME, Parashos P, Fernando JR, Palamara J, Sloan AJ. Biological considerations of dental materials as orifice barriers for restoring root-filled teeth. Aust Dent J 2023; 68 Suppl 1:S82-S95. [PMID: 37607102 DOI: 10.1111/adj.12970] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Accepted: 08/02/2023] [Indexed: 08/24/2023]
Abstract
There is ample published literature regarding the technical aspects of restoring root-filled teeth, but little concerning the biological impacts, consequences, and criteria for the selection of direct restorative materials following endodontic treatment. The provision of an effective coronal seal in addition to a sound root filling is known to be important in the prevention of root canal infection. This review seeks to explore the evidence concerning the selection of dental materials in the restoration of root-filled teeth, specifically with a close examination of the properties of commonly used materials as orifice barriers. © 2023 Australian Dental Association.
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Affiliation(s)
- M E Wylie
- Melbourne Dental School, Faculty of Medicine, Dentistry and Health Sciences, The University of Melbourne, Melbourne, Victoria, Australia
| | - P Parashos
- Melbourne Dental School, Faculty of Medicine, Dentistry and Health Sciences, The University of Melbourne, Melbourne, Victoria, Australia
| | - J R Fernando
- Melbourne Dental School, Faculty of Medicine, Dentistry and Health Sciences, The University of Melbourne, Melbourne, Victoria, Australia
- Centre for Oral Health Research, Melbourne Dental School, Faculty of Medicine, Dentistry and Health Sciences, The University of Melbourne, Melbourne, Victoria, Australia
| | - Jea Palamara
- Melbourne Dental School, Faculty of Medicine, Dentistry and Health Sciences, The University of Melbourne, Melbourne, Victoria, Australia
| | - A J Sloan
- Melbourne Dental School, Faculty of Medicine, Dentistry and Health Sciences, The University of Melbourne, Melbourne, Victoria, Australia
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Popescu AD, Tuculina MJ, Diaconu OA, Gheorghiță LM, Nicolicescu C, Cumpătă CN, Petcu C, Abdul-Razzak J, Rîcă AM, Voinea-Georgescu R. Effects of Dental Bleaching Agents on the Surface Roughness of Dental Restoration Materials. MEDICINA (KAUNAS, LITHUANIA) 2023; 59:1067. [PMID: 37374271 DOI: 10.3390/medicina59061067] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Received: 05/08/2023] [Revised: 05/27/2023] [Accepted: 05/30/2023] [Indexed: 06/29/2023]
Abstract
Background and Objectives: This study aimed to evaluate the surface roughness evolution of several finished and polished composites when bleaching materials are applied. The research was conducted on four microhybrid or nanofilled composites that are used in dental restorations. Materials and Methods: For each composite type, 5 samples were selected for control, 5 samples were subjected to the bleaching protocol "office bleach" with 40% hydrogen peroxide, and 5 other samples were subjected to the "home bleach" protocol with 16% carbamide peroxide, resulting in a total number of 60 samples. The surfaces of all the samples were tested for roughness, and the values of the most relevant parameter (Ra), were collected. Comparisons between composites and samples were performed using one-way ANOVA (in Statistical Package for Social Sciences). Results: After the bleaching protocol with 40% hydrogen peroxide gel, it was found that the roughness of the group increased considerably compared to the control group, so the highest roughness was found at GC Gradia direct anterior group, and the lowest value was registered for the 3M ESPE Valux Plus group. Following the bleaching protocol with 16% carbamide peroxide (home bleach), it was noted that the sample surfaces were not as affected. In this case, the lowest roughness was found at 3M ESPE Valux Plus group, and the highest roughness was registered for the GC G-aenial anterior group. Following the interpretation of the results, all four types of dental composites tested showed significant surface roughness differences between the groups subjected to bleaching protocols and those kept as control (p < 0.05). Conclusions: The surfaces of the samples were affected by the bleaching protocols by increasing the roughness compared to the control samples.
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Affiliation(s)
- Alexandru Dan Popescu
- Department of Endodontics, Faculty of Dental Medicine, University of Medicine and Pharmacy of Craiova, 200349 Craiova, Romania
| | - Mihaela Jana Tuculina
- Department of Endodontics, Faculty of Dental Medicine, University of Medicine and Pharmacy of Craiova, 200349 Craiova, Romania
| | - Oana Andreea Diaconu
- Department of Endodontics, Faculty of Dental Medicine, University of Medicine and Pharmacy of Craiova, 200349 Craiova, Romania
| | - Lelia Mihaela Gheorghiță
- Department of Endodontics, Faculty of Dental Medicine, University of Medicine and Pharmacy of Craiova, 200349 Craiova, Romania
| | - Claudiu Nicolicescu
- Department of Engineering and Management of the Technological Systems, Faculty of Mechanics, University of Craiova, 1 Calugareni, 220037 Drobeta-Turnu Severin, Romania
| | - Cristian Niky Cumpătă
- Faculty of Dental Medicine, University Titu Maiorescu of Bucharest, 031593 Bucharest, Romania
| | - Cristiana Petcu
- Department of Prosthodontics, Faculty of Dental Medicine, University of Medicine and Pharmacy of Craiova, 200349 Craiova, Romania
| | - Jaqueline Abdul-Razzak
- Department of Infant Care-Pediatrics-Neonatology & Doctoral School, University of Medicine and Pharmacy of Craiova, 200349 Craiova, Romania
| | - Ana Maria Rîcă
- Department of Endodontics, Faculty of Dental Medicine, University of Medicine and Pharmacy of Craiova, 200349 Craiova, Romania
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