1
|
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.
Collapse
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.
| | | |
Collapse
|
2
|
Pardi M, da Cunha BM, Cunha HMM, Marques MBES, Ribeiro KLG, Cruz CEF, Costa CR, Lepri CP, de Castro DT. Correlation between fluoride release, surface hardness and diametral tensile strength of restorative glass ionomer cements. J Clin Exp Dent 2024; 16:e610-e615. [PMID: 38988758 PMCID: PMC11231896 DOI: 10.4317/jced.61499] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/05/2024] [Accepted: 04/15/2024] [Indexed: 07/12/2024] Open
Abstract
Background The aim of this study was to determine if there is a correlation between fluoride release, surface hardness, and diametral tensile strength of restorative glass ionomer cements (GICs). Material and Methods Conventional (Riva Self Cure) and resin-modified (Riva Light Cure) GICs were used. Thirty-four samples (ø 6 x 3 mm) were prepared for each cement. The kinetics of fluoride release (n=4) was evaluated over 28 days using a fluoride-selective electrode (ISE 4010-C00). The analysis of surface hardness (n=10) was performed using a microhardness tester (Shimadzu HMV-2000, Japan) with a Knoop indenter and a load of 25 gf for 30 seconds. The diametral tensile strength test (n=10) was conducted on a universal testing machine at a speed of 0.75 mm/min. Fluoride release data were analyzed by two-way repeated measures ANOVA and Bonferroni post hoc test, while independent t-test was used for other analyses (α=0.05). Results Overall, the groups showed higher fluoride release until day 7 and a progressive decrease until day 28. On day 1 and day 21, Riva Self Cure showed a higher level of release than Riva Light Cure (p=0.026). Riva Light Cure showed higher diametral tensile strength (p<0.0001) and surface hardness (p=0.034) than Riva Self Cure. A negative correlation was found, indicating that higher fluoride release is associated with lower surface hardness and diametral tensile strength. Conclusion Fluoride release and mechanical performance are related properties of GICs, and these properties exhibit different values depending on the type of material. Resin-modified GIC release less fluoride but exhibit better mechanical performance compared to conventional GIC. Key words:Diametral Tensile Strength, Fluoride, Glass Ionomer Cement, Surface Hardness.
Collapse
Affiliation(s)
- Mariana Pardi
- Department of Biomaterials, University of Uberaba, Uberaba, MG, Brazil
| | | | | | | | | | - Carlos-Eduardo-Ferreira Cruz
- Department of Chemistry, Institute of Exact, Natural and Educational Sciences, Federal University of Triângulo Mineiro, Uberaba, MG, Brazil
| | - Carla-Regina Costa
- Department of Chemistry, Institute of Exact, Natural and Educational Sciences, Federal University of Triângulo Mineiro, Uberaba, MG, Brazil
| | | | | |
Collapse
|
3
|
Ivica A, Šalinović I, Jukić Krmek S, Garoushi S, Lassila L, Säilynoja E, Miletić I. Mechanical Properties and Ion Release from Fibre-Reinforced Glass Ionomer Cement. Polymers (Basel) 2024; 16:607. [PMID: 38475291 DOI: 10.3390/polym16050607] [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: 01/17/2024] [Revised: 02/20/2024] [Accepted: 02/21/2024] [Indexed: 03/14/2024] Open
Abstract
The aim of this study was to compare the mechanical properties and ion release from a commercially available resin-modified glass ionomer cement to a formulation reinforced by the addition of short glass fibres at various percentages. Methods: Three experimental groups were prepared by adding a mass ratio of 10%, 15% and 20% of short glass fibres to the powder portion of the cement from a capsule (GC Fuji II LC), while the control group contained no fibres. Microhardness (n = 12), fracture toughness, and flexural, compressive and diametral tensile strength (n = 8) were evaluated. To study ion release, readings were obtained utilising fluoro-selective and calcium-selective electrodes after 24 h, 7 days and 30 days (n = 12). The spatial distribution of fibres within the material was evaluated through scanning electron microscopy. The data were analysed using one-way ANOVA with a Bonferroni adjustment. Results: The findings suggest that elevating fibre weight ratios to 20 wt% results in improved mechanical properties (p < 0.05) in microhardness, flexural strength, diametral tensile strength and fracture toughness. In terms of ion release, a statistically significant difference (p < 0.001) was observed between the groups at the conclusion of 24 h and 7 days, when the fluoride release was much higher in the control group. However, after 30 days, no significant distinction among the groups was identified (p > 0.05). Regarding calcium release, no statistically significant differences were observed among the groups at any of the evaluated time points (p > 0.05). SEM showed the fibres were homogeneously incorporated into the cement in all experimental groups. Conclusions: Resin-modified glass ionomer enhanced with short glass fibres at a weight loading of 20% showcased the most favourable mechanical properties while concurrently maintaining the ability to release fluoride and calcium after a 30-day period.
Collapse
Affiliation(s)
- Anja Ivica
- Department of Endodontics and Restorative Dentistry, School of Dental Medicine, University of Zagreb, 10000 Zagreb, Croatia
| | - Ivan Šalinović
- Department of Endodontics and Restorative Dentistry, School of Dental Medicine, University of Zagreb, 10000 Zagreb, Croatia
| | - Silvana Jukić Krmek
- Department of Endodontics and Restorative Dentistry, School of Dental Medicine, University of Zagreb, 10000 Zagreb, Croatia
| | - Sufyan Garoushi
- Department of Biomaterials Science and Turku Clinical Biomaterial Center-TCBC Institute of Dentistry, University of Turku, 20520 Turku, Finland
| | - Lippo Lassila
- Department of Biomaterials Science and Turku Clinical Biomaterial Center-TCBC Institute of Dentistry, University of Turku, 20520 Turku, Finland
| | - Eija Säilynoja
- Department of Biomaterials Science and Turku Clinical Biomaterial Center-TCBC Institute of Dentistry, University of Turku, 20520 Turku, Finland
- Research Development and Production Department, Stick Tech Ltd., 20520 Turku, Finland
| | - Ivana Miletić
- Department of Endodontics and Restorative Dentistry, School of Dental Medicine, University of Zagreb, 10000 Zagreb, Croatia
| |
Collapse
|
4
|
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.
Collapse
Affiliation(s)
- Tamer M Hamdy
- Restorative and Dental Materials Department, Oral and Dental Research Institute, National Research Centre (NRC), Giza, 12622, Dokki, Egypt.
| |
Collapse
|
5
|
Battula MS, Kaushik M, Mehra N, Raj V. A comparative evaluation of fracture toughness, flexural strength, and acid buffer capability of a bulk-fill alkasite with high-strength glass-ionomer cement: An in vitro study. Dent Res J (Isfahan) 2022; 19:90. [PMID: 36426277 PMCID: PMC9680696] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/22/2021] [Revised: 04/16/2022] [Accepted: 07/11/2022] [Indexed: 12/04/2022] Open
Abstract
BACKGROUND Although glass-ionomer cement (GIC) has many unique properties and advantages, it still lacks favorable mechanical properties. Cention N is a recent alkasite material with excellent mechanical properties. The purpose of this study was to compare the mechanical properties (fracture toughness [FT] and flexural strength [FS]) and acid buffer capability of an alkasite material to GIC. MATERIALS AND METHODS In this in vitro study, a total of 60 samples were prepared using Cention N or GIC. Twenty specimens (n = 10) were prepared using beam-shaped Teflon molds for FS, and twenty specimens (n = 10) were prepared with a similar mold with a notch for FT. These were evaluated on a universal testing machine using a three-point bend test. Twenty (n = 10) disk-shaped specimens were prepared for acid buffer capability. The samples were stored in distilled water for a week. This was followed by immersion in lactic acid with a pH of 4 for calculation of the materials acid buffering capacity at 30 and 60 min from exposure using a pH meter. The data obtained were tabulated and subjected to Kolmogorov-Smirnov test and Shapiro-Wilk test to assess the normal distribution and further analyzed using the Student's t-test to assess the level of significance, P < 0.05 was considered statistically significant. RESULTS The mean FT, FS, and acid buffer capability of Cention N were significantly higher than GIC at P < 0.05. CONCLUSION The present study surmised that Cention N exhibited higher FT, FS, and acid buffer capability than GIC.
Collapse
Affiliation(s)
- Madhuri Sai Battula
- Department of Conservative Dentistry and Endodontics, Army College of Dental Sciences, Secunderabad, Telangana, India,Address for correspondence: Dr. Madhuri Sai Battula, Army College of Dental Sciences, CRPF Road, Jai Jawaharnagar Post, Hyderabad - 500 087, Telangana, India. E-mail:
| | - Mamta Kaushik
- Department of Conservative Dentistry and Endodontics, Army College of Dental Sciences, Secunderabad, Telangana, India
| | - Neha Mehra
- Department of Conservative Dentistry and Endodontics, Army College of Dental Sciences, Secunderabad, Telangana, India
| | - Vishnu Raj
- Department of Conservative Dentistry and Endodontics, Army College of Dental Sciences, Secunderabad, Telangana, India
| |
Collapse
|
6
|
Kranz S, Heyder M, Mueller S, Guellmar A, Krafft C, Nietzsche S, Tschirpke C, Herold V, Sigusch B, Reise M. Remineralization of Artificially Demineralized Human Enamel and Dentin Samples by Zinc-Carbonate Hydroxyapatite Nanocrystals. MATERIALS (BASEL, SWITZERLAND) 2022; 15:7173. [PMID: 36295240 PMCID: PMC9610234 DOI: 10.3390/ma15207173] [Citation(s) in RCA: 7] [Impact Index Per Article: 3.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Figures] [Subscribe] [Scholar Register] [Received: 09/16/2022] [Revised: 10/10/2022] [Accepted: 10/12/2022] [Indexed: 06/16/2023]
Abstract
(1) Background: Decalcified enamel and dentin surfaces can be regenerated with non-fluoride-containing biomimetic systems. This study aimed to investigate the effect of a zinc carbonate-hydroxyapatite-containing dentifrice on artificially demineralized enamel and dentin surfaces. (2) Methods: Human enamel and dentin discs were prepared and subjected to surface demineralization with 30% orthophosphoric acid for 60 s. Subsequently, in the test group (n = 20), the discs were treated three times a day for 3 min with a zinc carbonate-hydroxyapatite-containing toothpaste (biorepair®). Afterwards, all samples were gently rinsed with PBS (5 s) and stored in artificial saliva until next use. Samples from the control group (n = 20) received no dentifrice-treatment and were stored in artificial saliva, exclusively. After 15 days of daily treatment, specimens were subjected to Raman spectroscopy, energy-dispersive X-ray micro-analysis (EDX), white-light interferometry, and profilometry. (3) Results: Raman spectroscopy and white-light interferometry revealed no significant differences compared to the untreated controls. EDX analysis showed calcium phosphate and silicon dioxide precipitations on treated dentin samples. In addition, treated dentin surfaces showed significant reduced roughness values. (4) Conclusions: Treatment with biorepair® did not affect enamel surfaces as proposed. Minor mineral precipitation and a reduction in surface roughness were detected among dentin surfaces only.
Collapse
Affiliation(s)
- Stefan Kranz
- Department of Conservative Dentistry and Periodontology, Jena University Hospital, Friedrich-Schiller University, An der alten Post 4, 07743 Jena, Germany
| | - Markus Heyder
- Department of Conservative Dentistry and Periodontology, Jena University Hospital, Friedrich-Schiller University, An der alten Post 4, 07743 Jena, Germany
| | - Stephan Mueller
- Department of Conservative Dentistry and Periodontology, Jena University Hospital, Friedrich-Schiller University, An der alten Post 4, 07743 Jena, Germany
| | - André Guellmar
- Department of Conservative Dentistry and Periodontology, Jena University Hospital, Friedrich-Schiller University, An der alten Post 4, 07743 Jena, Germany
| | - Christoph Krafft
- Leibniz Institute of Photonic Technology (IPHT), 07745 Jena, Germany
| | - Sandor Nietzsche
- Center of Electron Microscopy, Jena University Hospital, Friedrich-Schiller University, 07743 Jena, Germany
| | - Caroline Tschirpke
- Otto Schott Institute of Materials Research, Friedrich-Schiller University, 07743 Jena, Germany
| | - Volker Herold
- Otto Schott Institute of Materials Research, Friedrich-Schiller University, 07743 Jena, Germany
| | - Bernd Sigusch
- Department of Conservative Dentistry and Periodontology, Jena University Hospital, Friedrich-Schiller University, An der alten Post 4, 07743 Jena, Germany
| | - Markus Reise
- Department of Conservative Dentistry and Periodontology, Jena University Hospital, Friedrich-Schiller University, An der alten Post 4, 07743 Jena, Germany
| |
Collapse
|
7
|
Reise M, Kranz S, Heyder M, Jandt KD, Sigusch BW. Effectiveness of Casein Phosphopeptide-Amorphous Calcium Phosphate (CPP-ACP) Compared to Fluoride Products in an In-Vitro Demineralization Model. MATERIALS 2021; 14:ma14205974. [PMID: 34683566 PMCID: PMC8540000 DOI: 10.3390/ma14205974] [Citation(s) in RCA: 3] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Received: 08/27/2021] [Revised: 09/27/2021] [Accepted: 10/03/2021] [Indexed: 11/16/2022]
Abstract
The goal of this study was to evaluate the effectiveness of the toothpaste Tooth Mousse compared to conventional fluoride-based versions in the prevention of enamel and dentin demineralization. Human enamel and dentin samples (n = 120 each) were exposed to artificial demineralization at pH 4.92. During the demineralization process, the samples in the test groups were periodically treated with Tooth Mousse (TM) containing casein-phosphopeptide -amorphous-calcium-phosphate (CPP-ACP) and Tooth Mousse Plus (TMP) containing amorphous-calcium-fluoride-phosphate (CPP-ACPF) to evaluate their protective properties. Fluoride toothpastes containing 1400 ppm amine fluoride (AmF) and 1450 ppm sodium fluoride (NaF) were applied in the positive control groups. Treatment with distilled water (group C-W) or demineralization without treatment (group C-D) served as negative controls. After the demineralization and treatment process, all samples were cut longitudinally and lesion depths were determined at six locations using polarized light microscopy. In TM/TMP groups (enamel: 80/86 µm, dentin: 153/156 µm) lesion depths were significantly smaller compared to the negative control groups C-W/C-D (enamel: 99/111 µm, dentin: 163/166 µm). However, TM and TMP compared to the positive controls AmF/NaF (enamel: 58/63 µm, dentin: 87/109 µm) showed higher lesion depths. The application of TM/TMP (89%/78%) during demineralization led to a reduced number of severe lesions compared to the negative controls C-W/C-D (100%/95%). In this study we demonstrate that Tooth Mousse is less effective regarding prevention of enamel and dentin demineralization compared to fluoride containing toothpastes.
Collapse
Affiliation(s)
- Markus Reise
- Department of Conservative Dentistry and Periodontology, Jena University Hospital, An der Alten Post 4, 07743 Jena, Germany; (S.K.); (M.H.); (B.W.S.)
- Correspondence:
| | - Stefan Kranz
- Department of Conservative Dentistry and Periodontology, Jena University Hospital, An der Alten Post 4, 07743 Jena, Germany; (S.K.); (M.H.); (B.W.S.)
| | - Markus Heyder
- Department of Conservative Dentistry and Periodontology, Jena University Hospital, An der Alten Post 4, 07743 Jena, Germany; (S.K.); (M.H.); (B.W.S.)
| | - Klaus D. Jandt
- Chair of Materials Science, Otto Schott Institute of Materials Research (OSIM), Faculty of Physics and Astronomy, Friedrich Schiller University Jena, Löbdergraben 32, 07743 Jena, Germany;
| | - Bernd W. Sigusch
- Department of Conservative Dentistry and Periodontology, Jena University Hospital, An der Alten Post 4, 07743 Jena, Germany; (S.K.); (M.H.); (B.W.S.)
| |
Collapse
|
8
|
Compressive Strength of Conventional Glass Ionomer Cement Modified with TiO 2 Nano-Powder and Marine-Derived HAp Micro-Powder. MATERIALS 2021; 14:ma14174964. [PMID: 34501056 PMCID: PMC8434552 DOI: 10.3390/ma14174964] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Received: 07/28/2021] [Revised: 08/21/2021] [Accepted: 08/28/2021] [Indexed: 11/17/2022]
Abstract
The aim of this research was to investigate the compressive strength (CS), breaking strength (BS), and compressive modulus (CM) of conventional glass ionomer cement (GIC) modified with TiO2 nano particles, marine-derived hydroxyapatite (md-HAp) microparticles (<45 µm), and a combination of TiO2 NP and md-HAp particles. The materials used in the study were conventional GIC Fuji IX GP Extra (GC Corporation, Tokyo, Japan), TiO2 powder P25 (Degussa, Essen, Germany), and HAp synthesized from cuttlefish bone and ground in a mortar to obtain md-HAp powder. md-HAp was characterized using FTIR and SEM analysis. There were four groups of GIC samples: (i) Fuji IX control group, (ii) powder modified with 3 wt% TiO2, (iii) powder modified with 3 wt% HAp, and (iv) powder modified with 1.5 wt% TiO2 + 1.5 wt% HAp. Measurements were performed in a universal testing machine, and CS, BS, and CM were calculated. Statistical analysis was performed using ANOVA and Tukey’s tests. CS, BS, and CM differed significantly between the Fuji IX control group and all experimental groups while differences between the experimental groups were not statistically significant. The addition of TiO2 NP, md-HAp micro-sized particles, and a combination of TiO2 and md-HAp reduced the CS, BS, and CM of conventional GICs when mixed at the powder/liquid (p/l) ratio recommended by the manufacturer.
Collapse
|
9
|
Özcan M, Garcia LDFR, Volpato CAM. Bioactive Materials for Direct and Indirect Restorations: Concepts and Applications. FRONTIERS IN DENTAL MEDICINE 2021. [DOI: 10.3389/fdmed.2021.647267] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/20/2022] Open
Abstract
Currently, minimally invasive restorations could be made in dentistry applying adhesive materials and adhesion principles to the dental structures. Following this philosophy, endodontic interventions have been avoided largely, preserving hard tissues, and maintaining dental vitality. Advances in biologically favorable bioactive materials enabled clinicans to induce repair and regeneration of dental tissues. Such materials are primarily used for pulp protection and cementation of indirect restorations. This review highlights current bioactive materials available, principles of bioactivity and their mechanisms of action.
Collapse
|
10
|
Muntean A, Sarosi C, Sava S, Moldovan M, Condurache AI, Delean AG. Dental Sealant Composition-Retention Assessment in Young Permanent Molars. MATERIALS 2021; 14:ma14071646. [PMID: 33801674 PMCID: PMC8036559 DOI: 10.3390/ma14071646] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Received: 02/24/2021] [Revised: 03/18/2021] [Accepted: 03/23/2021] [Indexed: 11/16/2022]
Abstract
Tooth decay in children and adolescents remains a public health problem, despite prophylaxis and preventive measures being largely available. The aim of our study was to evaluate the clinical behavior of four dental sealants, related to first permanent molar topography and patient age (when sealant was applied for the first time). We assessed, by means of visual inspection and palpation with a dental probe, a group of 200 children, enrolled corresponding to school age-grade (mean age of 7 years at baseline) and randomly divided according to the material used as dental sealant (Admira seal©, Embrace Wet Bond©, Fotoseal©, GC Fuji Triaje©) in 4 groups (n = 50). Sealant clinical evaluation was made at 6-, 12-, 18-month intervals for dental material retention assessment. At 6 months, the sealant detached the most from 3.6 molars, and the material used was Fotoseal© (27.6%). At 12 months, Fotoseal© (48.3%) and GC Fuji Triaje© (41.4%) from 3.6 molars express detachment. At 18 months, 4.6. molars sealed with Admira Seal© (25.7%) and Embrace Wet Bond© (28.6%) lost the sealant. We noticed less detachment in maxillary molars and if sealant was applied around 7 years of age. In conclusion, sealant application on first permanent molars must be encouraged and practitioners can choose between various materials available.
Collapse
Affiliation(s)
- Alexandrina Muntean
- Department of Paediatric Dentistry, Iuliu Hatieganu University of Medicine and Pharmacy, 31 A. Iancu Street, 400083 Cluj-Napoca, Romania;
| | - Codruta Sarosi
- Institute of Chemistry Raluca Ripan, Department of Polymer Composites, Babes-Bolyai University, 30 Fantanele Str., 400294 Cluj-Napoca, Romania;
- Correspondence: (C.S.); (S.S.); Tel.: + 40-720-675-577 (S.S.)
| | - Sorina Sava
- Department of Prosthodontics and Dental Materials, Iuliu Hatieganu University of Medicine and Pharmacy, 15 V. Babes Street, 400012 Cluj-Napoca, Romania
- Correspondence: (C.S.); (S.S.); Tel.: + 40-720-675-577 (S.S.)
| | - Marioara Moldovan
- Institute of Chemistry Raluca Ripan, Department of Polymer Composites, Babes-Bolyai University, 30 Fantanele Str., 400294 Cluj-Napoca, Romania;
| | - Andrei Ilie Condurache
- Resident Physician—Laboratory Medicine, Cluj County Clinical Hospital, 3-5 Clinicilor Street, 3-5, 400000 Cluj-Napoca, Romania;
| | - Ada Gabriela Delean
- Department of Conservative Dentistry, Iuliu Hatieganu University of Medicine and Pharmacy, 33 Motilor Street, 400001 Cluj-Napoca, Romania;
| |
Collapse
|
11
|
Sainath Reddy TH, Venkatesh KV, Mani R. Comparative evaluation of three different glass ionomer cements. Indian J Dent Res 2021; 32:485-488. [DOI: 10.4103/ijdr.ijdr_603_21] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/04/2022] Open
|
12
|
Bilić-Prcić M, Rajić VB, Ivanišević A, Pilipović A, Gurgan S, Miletić I. Mechanical Properties of Glass Ionomer Cements after Incorporation of Marine Derived Porous Cuttlefish Bone Hydroxyapatite. MATERIALS 2020; 13:ma13163542. [PMID: 32796624 PMCID: PMC7475982 DOI: 10.3390/ma13163542] [Citation(s) in RCA: 5] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Received: 07/10/2020] [Revised: 08/06/2020] [Accepted: 08/09/2020] [Indexed: 01/11/2023]
Abstract
The purpose of this study was to evaluate the effects of the incorporation of hydroxyapatite (HA) derived from cuttlefish bone on the mechanical properties of glass ionomer cements (GIC). Fuji II LC and Fuji IX GP Extra (GC Corporation, Tokyo, Japan) were used in the study. There were four groups (n = 11–18) for each material: a group without the addition of HA particles and three groups modified by incorporation of 2, 5, and 10 wt% HA. The tests were performed on a universal testing machine (Shimadzu, Duisburg, Germany) and descriptive statistics, two-way analysis of variance (ANOVA) for the comparison of three mechanical properties, and one-way ANOVA for the comparison of different concentrations for each material were performed. Regarding the Fuji IX groups, compressive strength (CS) and flexural strength (FS) were highest in the group without HA particles added. The differences in CS between the Fuji IX group without HA particles and the Fuji IX groups with 2 wt% HA and 10 wt% HA were significant. The Fuji II 5 wt% HA group exhibited higher diametral tensile strength (DTS) and CS than other Fuji II groups, but not significantly. The Fuji II group, modified with 10 wt% HA, exhibited significantly higher FS than the Fuji II group without HA particles (p < 0.05). Porous HA incorporated into the Fuji IX groups had a significant impact on mechanical properties only in the Fuji IX 5 wt% HA group. Fuji II groups modified with 10 wt% HA showed the most favorable results with respect to FS.
Collapse
Affiliation(s)
- Maja Bilić-Prcić
- School of Dental Medicine, University of Zagreb, Gundulićeva 5, 10000 Zagreb, Croatia; (M.B.-P.); (V.B.R.); (I.M.)
| | - Valentina Brzović Rajić
- School of Dental Medicine, University of Zagreb, Gundulićeva 5, 10000 Zagreb, Croatia; (M.B.-P.); (V.B.R.); (I.M.)
| | - Ana Ivanišević
- School of Dental Medicine, University of Zagreb, Gundulićeva 5, 10000 Zagreb, Croatia; (M.B.-P.); (V.B.R.); (I.M.)
- Correspondence: ; Tel.: +385-1-4802-126
| | - Ana Pilipović
- Faculty of Mechanical Engineering and Naval Architecture, University of Zagreb, Lučićeva 5, 10000 Zagreb, Croatia;
| | - Sevil Gurgan
- School of Dentistry, Hacettepe University, Ankara 06100, Turkey;
| | - Ivana Miletić
- School of Dental Medicine, University of Zagreb, Gundulićeva 5, 10000 Zagreb, Croatia; (M.B.-P.); (V.B.R.); (I.M.)
| |
Collapse
|
13
|
Commercially Available Fluoride-Releasing Restorative Materials: A Review and a Proposal for Classification. MATERIALS 2020; 13:ma13102313. [PMID: 32443424 PMCID: PMC7287768 DOI: 10.3390/ma13102313] [Citation(s) in RCA: 71] [Impact Index Per Article: 17.8] [Reference Citation Analysis] [Abstract] [Key Words] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Received: 04/04/2020] [Revised: 05/06/2020] [Accepted: 05/11/2020] [Indexed: 02/04/2023]
Abstract
Resin composite and glass ionomer cement (GIC) are the most commonly used dental materials to perform direct restorations. Both have specific characteristics that explain their popularity and their limits. More than 20 years ago, the first attempt (followed by others) to combine the advantages of these two families was performed with compomers, but it was not very successful. Recently, new formulations (also called 'smart materials') with claimed ion release properties have been proposed under different family names, but there are few studies on them and explanations of their chemistries. This comprehensive review aims to gather the compositions; the setting reactions; the mechanical, self-adhesive, and potential bulk-fill properties; and the ion release abilities of the large existing families of fluoride-releasing restorative materials and the new restorative materials to precisely describe their characteristics, their eventual bioactivities, and classify them for an improved understanding of these materials. Based on this work, the whole GIC family, including resin-modified and highly viscous formulations, was found to be bioactive. Cention N (Ivoclar Vivadent, AG, Schaan, Lietschentein) is the first commercially available bioactive resin composite.
Collapse
|
14
|
Protective Effects of GIC and S-PRG Filler Restoratives on Demineralization of Bovine Enamel in Lactic Acid Solution. MATERIALS 2020; 13:ma13092140. [PMID: 32384599 PMCID: PMC7254408 DOI: 10.3390/ma13092140] [Citation(s) in RCA: 12] [Impact Index Per Article: 3.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Received: 04/05/2020] [Revised: 04/27/2020] [Accepted: 04/30/2020] [Indexed: 11/17/2022]
Abstract
This study was aimed at investigating the protective effects of glass ionomer cement (GIC) and surface pre-reacted glass ionomer (S-PRG) fillers used as dental restorative materials on demineralization of bovine enamel. GlasIonomer FX ULTRA (FXU), Fuji IX GP Extra (FIXE), CAREDYNE RESTORE (CDR) were used as GICs. PRG Barrier Coat (BC) was used as the S-PRG filler. They were incubated in a lactic acid solution (pH = 4.0) for six days at a temperature of 37 °C. The mineral was etched from the enamel surface, and a large number of Ca and P ions were detected in solution. The Al, F, Na, Sr, and Sr ions were released in GICs and S-RPG fillers. The Zn ion was released only in CDR and the B ion was released only in BC. The presence of apparent enamel prism peripheries was observed after six days of treatment for the group containing only enamel blocks. pH values for the FXU, FIXE, CDR, BC, and enamel block groups after six days were 6.5, 6.6, 6.7, 5.9, and 5.1, respectively. Therefore, the observed pH neutralization effect suppressed progression of caries due to the release of several ions from the restoratives.
Collapse
|
15
|
Scribante A, Poggio C, Gallo S, Riva P, Cuocci A, Carbone M, Arciola CR, Colombo M. In Vitro Re-Hardening of Bleached Enamel Using Mineralizing Pastes: Toward Preventing Bacterial Colonization. MATERIALS 2020; 13:ma13040818. [PMID: 32054090 PMCID: PMC7079603 DOI: 10.3390/ma13040818] [Citation(s) in RCA: 17] [Impact Index Per Article: 4.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Received: 12/13/2019] [Revised: 01/30/2020] [Accepted: 02/07/2020] [Indexed: 12/14/2022]
Abstract
The search for materials able to remineralize human hard tissues is a modern medical challenge. In this study, the protective effect on the enamel microhardness by a paste based on hydroxyapatite and sodium fluoride (Remin Pro) was evaluated after two different enamel bleaching procedures. Forty sound human incisors were randomly assigned to different treatments: bleaching with an in-office agent (Perfect Bleach Office+); bleaching with an at-home agent (Perfect Bleach); bleaching with the in-office agent followed by the prophylaxis paste; bleaching with the at-home agent followed by the prophylaxis paste; no treatment (control). Bleaching was performed at 0, 8, 24 and 32 h, followed by a 3-min re-mineralizing treatment in the subgroups designed to receive it. Specimens underwent a micro-hardness tester and a mean Vickers Hardness number was considered for each specimen. ANOVA exhibited significant differences among groups. Post-hoc Tukey testing showed significant micro-hardness decrease after the application of both the two bleaching agents. The treatment with prophylaxis paste significantly increased the micro-hardness values of bleached enamel.
Collapse
Affiliation(s)
- Andrea Scribante
- Department of Clinical-Surgical, Diagnostic and Paediatric Sciences-Section of Dentistry, University of Pavia, 27100 Pavia, Italy; (A.S.); (P.R.); (A.C.); (M.C.)
| | - Claudio Poggio
- Department of Clinical-Surgical, Diagnostic and Paediatric Sciences-Section of Dentistry, University of Pavia, 27100 Pavia, Italy; (A.S.); (P.R.); (A.C.); (M.C.)
- Correspondence: (C.P.); (S.G.); (C.R.A.)
| | - Simone Gallo
- Department of Clinical-Surgical, Diagnostic and Paediatric Sciences-Section of Dentistry, University of Pavia, 27100 Pavia, Italy; (A.S.); (P.R.); (A.C.); (M.C.)
- Correspondence: (C.P.); (S.G.); (C.R.A.)
| | - Paolo Riva
- Department of Clinical-Surgical, Diagnostic and Paediatric Sciences-Section of Dentistry, University of Pavia, 27100 Pavia, Italy; (A.S.); (P.R.); (A.C.); (M.C.)
| | - Antonella Cuocci
- Department of Clinical-Surgical, Diagnostic and Paediatric Sciences-Section of Dentistry, University of Pavia, 27100 Pavia, Italy; (A.S.); (P.R.); (A.C.); (M.C.)
| | - Manuel Carbone
- Department of Clinical-Surgical, Diagnostic and Paediatric Sciences-Section of Dentistry, University of Pavia, 27100 Pavia, Italy; (A.S.); (P.R.); (A.C.); (M.C.)
| | - Carla Renata Arciola
- Laboratorio di Patologia delle Infezioni Associate all’Impianto, IRCCS Istituto Ortopedico Rizzoli, via di Barbiano 1/10, 40136 Bologna, Italy
- Department of Experimental, Diagnostic and Specialty Medicine, University of Bologna, via San Giacomo 14, 40126 Bologna, Italy
- Correspondence: (C.P.); (S.G.); (C.R.A.)
| | - Marco Colombo
- Department of Clinical-Surgical, Diagnostic and Paediatric Sciences-Section of Dentistry, University of Pavia, 27100 Pavia, Italy; (A.S.); (P.R.); (A.C.); (M.C.)
| |
Collapse
|