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Leveque M, Bekhouche M, Farges JC, Richert R, Ducret M. Investigation of the early apical release from endodontic hydrogels: A 3D printed model. Int Endod J 2024; 57:943-950. [PMID: 38376094 DOI: 10.1111/iej.14049] [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: 09/08/2023] [Revised: 02/02/2024] [Accepted: 02/05/2024] [Indexed: 02/21/2024]
Abstract
AIM Regenerative Endodontic Procedures (REPs) using new materials such as hydrogels aim to replace current endodontic treatments, but numerous limitations are to overcome. Apical release was little explored in previous studies, especially regarding hydrogels that incorporate molecules, such as growth factors and antibiotics. Apical release is a key mechanism in achieving regeneration, as it could regulate disinfection or cell colonization. Few models exist for apical release, limiting the transfer of these devices from bench to bedside. This study aims to design a simple and standardized model to identify parameters that influence the early apical release kinetic of molecules from endodontic hydrogels. METHODOLOGY Endodontic Release Inserts (ERI) were designed to mimic the situation of an immature incisor using three different diameters (Ø 0.5 to 2 mm) and to allow the study of the early release from a hydrogel in a 96-well plate. ERI was produced with a 3D printing machine. The kinetic release was investigated using 2 fluorescent, hydrophobic (BDP-500) and hydrophilic (Fluorescein) molecules, in different hydrogels (fibrin and agarose) and in various media (PBS or serum). The release kinetics were estimated by measuring the fluorescence at different time points (1 to 24 h). RESULTS ERI use made it possible to report that apical diameters increase from 500 to 1000 μm was associated with an increase in release from 4.02 ± 1.63% to 11.53 ± 2.38% over 24 h. It also allowed us to report that bottom solution composition change from PBS to human serum was associated with an increase in the release of fatty acid molecules, whilst a decrease in the hydrogel concentration was associated with a variation in release kinetics. Moreover, nano-encapsulation of a molecule was associated with a decreased release over the first 24 h from 5.25 to 0%. CONCLUSION ERI use enables investigation of the parameters influencing release kinetics from endodontic hydrogels. Further investigations are necessary to evaluate the interaction of these parameters with each other, in animal models and clinic.
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Affiliation(s)
- Marianne Leveque
- Laboratoire de Biologie Tissulaire et Ingénierie thérapeutique, UMR 5305 CNRS/Université Claude Bernard Lyon 1, UMS 3444 BioSciences Gerland-Lyon Sud, Lyon, France
| | - Mourad Bekhouche
- Laboratoire de Biologie Tissulaire et Ingénierie thérapeutique, UMR 5305 CNRS/Université Claude Bernard Lyon 1, UMS 3444 BioSciences Gerland-Lyon Sud, Lyon, France
| | - Jean-Christophe Farges
- Laboratoire de Biologie Tissulaire et Ingénierie thérapeutique, UMR 5305 CNRS/Université Claude Bernard Lyon 1, UMS 3444 BioSciences Gerland-Lyon Sud, Lyon, France
- Faculté d'Odontologie, Université Claude Bernard Lyon 1, Université de Lyon, Lyon, France
- Service d'Odontologie, Hospices Civils de Lyon, Lyon, France
| | - Raphaël Richert
- Faculté d'Odontologie, Université Claude Bernard Lyon 1, Université de Lyon, Lyon, France
- Service d'Odontologie, Hospices Civils de Lyon, Lyon, France
- UMR 5259 CNRS/INSA/Univ, Lyon, France
| | - Maxime Ducret
- Laboratoire de Biologie Tissulaire et Ingénierie thérapeutique, UMR 5305 CNRS/Université Claude Bernard Lyon 1, UMS 3444 BioSciences Gerland-Lyon Sud, Lyon, France
- Faculté d'Odontologie, Université Claude Bernard Lyon 1, Université de Lyon, Lyon, France
- Service d'Odontologie, Hospices Civils de Lyon, Lyon, France
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Albelasy EH, Hamama HH, Chew HP, Montasser M, Mahmoud SH. Clinical performance of two ion-releasing bulk-fill composites in class I and class II restorations: A two-year evaluation. J ESTHET RESTOR DENT 2024; 36:723-736. [PMID: 38174898 DOI: 10.1111/jerd.13193] [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: 10/12/2023] [Revised: 11/26/2023] [Accepted: 12/25/2023] [Indexed: 01/05/2024]
Abstract
OBJECTIVES This randomized clinical trial evaluated and compared the 2-year clinical performance of two ion-releasing bulk-fill composites (Cention N and Surefil One) with that of a conventional bulk-fill resin composite (Powerfil) in Class I and II cavities. METHODS Thirty-two patients, each with 3 Class I and/or Class II cavities under occlusion, were enrolled in this trial. A total of 96 restorations were placed, 32 for each material, as follows: a self-adhesive composite; Surefil-one, alkasite; Cention N, and a bulk-fill resin composite; Powerfil. The restorations were placed by a single operator. Clinical evaluation was performed at baseline (1-week), 6-months, 1-year, and 2-years by two independent examiners using the FDI criteria. Intergroup and intragroup comparisons were analyzed using the Kruskal-Wallis and Friedman Tests. Multiple comparisons between groups were analyzed using the Mann-Whitney and Wilcoxon-rank tests. The level of significance was set at α = 0.05. RESULTS Twenty-seven patients with a total of 81 restorations were evaluated at the end of the 2-years with 84.35% recall rates. Clinical success rates were 100%, 100%, and 96.3% for Powerfil, Surefil-one, and Cention N, respectively. Cention N showed a statistically significant (p < 0.05) decreased marginal integrity in comparison with resin composite at the 2-year evaluation. No recurrent decay was detected in any restoration. CONCLUSIONS Both ion-releasing bulk-fill composites provided acceptable clinical performance similar to bulk-fill composite in Class I and II restorations over a 2-year period. CLINICAL RELEVANCE The results of this trial suggests that there is a promising evidence supporting the use of ion-releasing composites.
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Affiliation(s)
- Eman H Albelasy
- Conservative Dentistry Department, Faculty of Dentistry, Mansoura University, Mansoura, Aldakhlia, Egypt
- Minnesota Dental Research Center for Biomaterials and Biomechanics, School of Dentistry, University of Minnesota, Minneapolis, Minnesota, USA
| | - Hamdi H Hamama
- Conservative Dentistry Department, Faculty of Dentistry, Mansoura University, Mansoura, Aldakhlia, Egypt
- Faculty of Dentistry, New-Mansoura University, New-Mansoura, Egypt
| | - Hooi Pin Chew
- Minnesota Dental Research Center for Biomaterials and Biomechanics, School of Dentistry, University of Minnesota, Minneapolis, Minnesota, USA
| | - Marmar Montasser
- Conservative Dentistry Department, Faculty of Dentistry, Mansoura University, Mansoura, Aldakhlia, Egypt
| | - Salah H Mahmoud
- Conservative Dentistry Department, Faculty of Dentistry, Mansoura University, Mansoura, Aldakhlia, Egypt
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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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Leveque M, Bekhouche M, Farges JC, Aussel A, Sy K, Richert R, Ducret M. Bioactive Endodontic Hydrogels: From Parameters to Personalized Medicine. Int J Mol Sci 2023; 24:14056. [PMID: 37762359 PMCID: PMC10531297 DOI: 10.3390/ijms241814056] [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: 08/23/2023] [Revised: 09/05/2023] [Accepted: 09/07/2023] [Indexed: 09/29/2023] Open
Abstract
Regenerative endodontic procedures (REPs) aim at recreating dental pulp tissue using biomaterials such as hydrogels. Their bioactivity is mostly related to the nature of biomolecules or chemical compounds that compose the endodontic hydrogel. However, many other parameters, such as hydrogel concentration, bioactive molecules solubility, and apex size, were reported to influence the reciprocal host-biomaterial relationship and hydrogel behavior. The lack of knowledge regarding these various parameters, which should be considered, leads to the inability to predict the clinical outcome and suggests that the biological activity of endodontic hydrogel is impossible to anticipate and could hinder the bench-to-bedside transition. We describe, in this review, that most of these parameters could be identified, described, and studied. A second part of the review lists some challenges and perspectives, including development of future mathematical models that are able to explain, and eventually predict, the bioactivity of endodontic hydrogel used in a clinical setting.
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Affiliation(s)
- Marianne Leveque
- Laboratoire de Biologie Tissulaire et Ingénierie Thérapeutique, UMR 5305 CNRS/UCBL, 69007 Lyon, France; (M.L.); (M.B.); (J.-C.F.)
| | - Mourad Bekhouche
- Laboratoire de Biologie Tissulaire et Ingénierie Thérapeutique, UMR 5305 CNRS/UCBL, 69007 Lyon, France; (M.L.); (M.B.); (J.-C.F.)
| | - Jean-Christophe Farges
- Laboratoire de Biologie Tissulaire et Ingénierie Thérapeutique, UMR 5305 CNRS/UCBL, 69007 Lyon, France; (M.L.); (M.B.); (J.-C.F.)
- Faculté d’Odontologie, Université Claude Bernard Lyon 1, Université de Lyon, 69008 Lyon, France; (K.S.); (R.R.)
- Service d’Odontologie, Hospices Civils de Lyon, 69007 Lyon, France
| | - Audrey Aussel
- BIOTIS—Laboratory for the Bioengineering of Tissues (UMR Inserm 1026), University of Bordeaux, Inserm, 33076 Bordeaux, France;
- UFR d’Odontologie, Université de Bordeaux, 33600 Bordeaux, France
- CHU de Bordeaux, Pôle de Médecine et Chirurgie Bucco-Dentaire, 33076 Bordeaux, France
| | - Kadiatou Sy
- Faculté d’Odontologie, Université Claude Bernard Lyon 1, Université de Lyon, 69008 Lyon, France; (K.S.); (R.R.)
- Service d’Odontologie, Hospices Civils de Lyon, 69007 Lyon, France
- Laboratoire des Multimatériaux et Interfaces, UMR CNRS 5615, Université Claude Bernard Lyon 1, 69622 Villeurbanne, France
| | - Raphaël Richert
- Faculté d’Odontologie, Université Claude Bernard Lyon 1, Université de Lyon, 69008 Lyon, France; (K.S.); (R.R.)
- Service d’Odontologie, Hospices Civils de Lyon, 69007 Lyon, France
| | - Maxime Ducret
- Laboratoire de Biologie Tissulaire et Ingénierie Thérapeutique, UMR 5305 CNRS/UCBL, 69007 Lyon, France; (M.L.); (M.B.); (J.-C.F.)
- Faculté d’Odontologie, Université Claude Bernard Lyon 1, Université de Lyon, 69008 Lyon, France; (K.S.); (R.R.)
- Service d’Odontologie, Hospices Civils de Lyon, 69007 Lyon, France
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Albelasy EH, Chen R, Fok A, Montasser M, Hamama HH, Mahmoud SH, Abdelrehim T, Chew HP. Inhibition of Caries around Restoration by Ion-Releasing Restorative Materials: An In Vitro Optical Coherence Tomography and Micro-Computed Tomography Evaluation. MATERIALS (BASEL, SWITZERLAND) 2023; 16:5558. [PMID: 37629848 PMCID: PMC10456765 DOI: 10.3390/ma16165558] [Citation(s) in RCA: 1] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Subscribe] [Scholar Register] [Received: 06/28/2023] [Revised: 08/01/2023] [Accepted: 08/02/2023] [Indexed: 08/27/2023]
Abstract
The objective of this study was firstly to assess the demineralization inhibitory effect of ion-releasing restorations in enamel adjacent to restoration using a biofilm caries model and secondly to compare the effect to that in a chemical caries model. Fifty-six bovine incisors were filled with either Surefil one (SuO), Cention N (CN) (both ion-releasing materials), Ketac-Molar (GIC) or Powerfill resin composite (RC). The restored teeth were then randomly divided into 2 groups according to the used caries model (biofilm or chemical caries model). The micro-computed tomography (MicroCt) and optical coherence tomography (OCT) outcome measures used to evaluate demineralization inhibition effects were lesion depth, LD and increase in OCT integrated reflectivity, ΔIR, at five different depths. It was observed that all outcome measures of CN were statistically the same as those of GIC and conversely with those of RC. This was also the case for SuO except for LD, which was statistically the same as RC. When comparing the two caries models, LD of the biofilm model was statistically deeper (p < 0.05) than the chemical model for all four materials. In conclusion, CN and SuO have similar demineralization inhibitory effects as GIC, and the biofilm caries model is more discriminatory in differentiating demineralization inhibitory effects of ion-releasing restorative material.
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Affiliation(s)
- Eman H. Albelasy
- Conservative Dentistry Department, Faculty of Dentistry, Mansoura University, Algomhoria Street, Mansoura 35516, Egypt; (E.H.A.); (M.M.); (H.H.H.); (S.H.M.)
- Minnesota Dental Research Center for Biomaterials and Biomechanics, School of Dentistry, University of Minnesota, Minneapolis, MN 55455, USA; (A.F.)
| | - Ruoqiong Chen
- Department of Diagnostics and Biological Sciences, School of Dentistry, University of Minnesota, Minneapolis, MN 55455, USA
| | - Alex Fok
- Minnesota Dental Research Center for Biomaterials and Biomechanics, School of Dentistry, University of Minnesota, Minneapolis, MN 55455, USA; (A.F.)
| | - Marmar Montasser
- Conservative Dentistry Department, Faculty of Dentistry, Mansoura University, Algomhoria Street, Mansoura 35516, Egypt; (E.H.A.); (M.M.); (H.H.H.); (S.H.M.)
| | - Hamdi H. Hamama
- Conservative Dentistry Department, Faculty of Dentistry, Mansoura University, Algomhoria Street, Mansoura 35516, Egypt; (E.H.A.); (M.M.); (H.H.H.); (S.H.M.)
- Faculty of Dentistry, New-Mansoura University, New-Mansoura 35712, Egypt
| | - Salah H. Mahmoud
- Conservative Dentistry Department, Faculty of Dentistry, Mansoura University, Algomhoria Street, Mansoura 35516, Egypt; (E.H.A.); (M.M.); (H.H.H.); (S.H.M.)
- Conservative Dentistry Department, Faculty of Dentistry, Horus University, New-Dumyat 34517, Egypt
| | - Tamer Abdelrehim
- Minnesota Dental Research Center for Biomaterials and Biomechanics, School of Dentistry, University of Minnesota, Minneapolis, MN 55455, USA; (A.F.)
| | - Hooi Pin Chew
- Minnesota Dental Research Center for Biomaterials and Biomechanics, School of Dentistry, University of Minnesota, Minneapolis, MN 55455, USA; (A.F.)
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Pinto NS, Jorge GR, Vasconcelos J, Probst LF, De-Carli AD, Freire A. Clinical efficacy of bioactive restorative materials in controlling secondary caries: a systematic review and network meta-analysis. BMC Oral Health 2023; 23:394. [PMID: 37322456 PMCID: PMC10268411 DOI: 10.1186/s12903-023-03110-y] [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: 03/23/2023] [Accepted: 06/06/2023] [Indexed: 06/17/2023] Open
Abstract
BACKGROUND This systematic review and network meta-analysis aimed to compare the clinical efficacy of bioactive and conventional restorative materials in controlling secondary caries (SC) and to provide a classification of these materials according to their effectiveness. METHODS A search was performed in Pubmed, Web of Science, Embase, BBO, Lilacs, Cochrane Library, Scopus, IBECS and gray literature. Clinical trials were included, with no language or publication date limitations. Paired and network meta-analyses were performed with random-effects models, comparing treatments of interest and classifying them according to effectiveness in the permanent and deciduous dentition and at 1-year or 2/more years of follow-up. The risk of bias and certainty of evidence were evaluated. RESULTS Sixty-two studies were included in the qualitative syntheses and 39 in the quantitative ones. In permanent teeth, resin composite (RC) (RR = 2.00; 95%CI = 1.10, 3.64) and amalgam (AAG) (RR = 1.79; 95%CI = 1.04, 3.09) showed a higher risk of SC than Glass Ionomer Cement (GIC). In the deciduous teeth, however, a higher risk of SC was observed with RC than with AAG (RR = 2.46; 95%CI = 1.42, 4.27) and in GIC when compared to Resin-Modified Glass Ionomer Cement (RMGIC = 1.79; 95%CI = 1.04, 3.09). Most randomized clinical trials studies showed low or moderate risk of bias. CONCLUSION There is a difference between bioactive restorative materials for SC control, with GIC being more effective in the permanent teeth and the RMGIC in the deciduous teeth. Bioactive restorative materials can be adjuvants in the control of SC in patients at high risk for caries.
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Affiliation(s)
- Noeleni Souza Pinto
- School of Dentistry, Universidade Federal de Mato Grosso Do Sul, Av. Costa E Silva, S/N, Universitário, Campo Grande, MS 79070-900 Brazil
| | - Gabriela Rebouças Jorge
- School of Dentistry, Universidade Federal de Mato Grosso Do Sul, Av. Costa E Silva, S/N, Universitário, Campo Grande, MS 79070-900 Brazil
| | | | - Livia Fernandes Probst
- Unidade de Avaliação de Tecnologias Em Saúde, Hospital Alemão Oswaldo Cruz, São Paulo, Brazil
| | - Alessandro Diogo De-Carli
- School of Dentistry, Universidade Federal de Mato Grosso Do Sul, Av. Costa E Silva, S/N, Universitário, Campo Grande, MS 79070-900 Brazil
| | - Andrea Freire
- School of Dentistry, Universidade Federal de Mato Grosso Do Sul, Av. Costa E Silva, S/N, Universitário, Campo Grande, MS 79070-900 Brazil
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Daabash R, Alqahtani MQ, Price RB, Alshabib A, Niazy A, Alshaafi MM. Surface Properties and Streptococcus mutans Biofilm Adhesion of Ion-Releasing Resin-Based Composite Materials. J Dent 2023; 134:104549. [PMID: 37196686 DOI: 10.1016/j.jdent.2023.104549] [Citation(s) in RCA: 2] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/15/2023] [Revised: 05/11/2023] [Accepted: 05/15/2023] [Indexed: 05/19/2023] Open
Abstract
OBJECTIVE To evaluate the adhesion of Streptococcus mutans (S. mutans) and related surface properties of ion-releasing resin-based composite (RBC) restorative materials. METHODS Two ion-releasing RBCs, Activa (ACT) and Cention-N (CN), were compared to a conventional RBC (Z350) and a resin-modified glass ionomer cement (Fuji-II-LC). Ten disk-shaped specimens were fabricated for each material (n=40). After standardized surface polishing procedure, the surface properties of the specimens were evaluated using surface roughness measurements by a profilometer and hydrophobicity using water contact angle measurements. To assess bacterial adhesion, the number of S. mutans bacteria was calculated from colony-forming units (CFU). Confocal laser scanning microscope analysis was done for qualitative & quantitative assessment. The data were analyzed using One-way ANOVA followed by Tukey's post-hoc test to compare the mean values of surface roughness, water contact angle and CFU values. To compare the mean dead cell percentage Kruskal-Wallis rank test and Conover test were used. A p-value of ≤ 0.05 was used to report the statistical significance. RESULTS Z350 and ACT had the smoothest surfaces, followed by CN, and the roughest surface was seen in FUJI-II-LC. The lowest water contact angles were seen in CN, and Z350, and the highest were in ACT. S. mutans counts were the highest in ACT and the lowest in Z350 and CN. CN and Fuji-II-LC registered the highest percentage of dead bacterial cells, while the lowest were in ACT. SIGNIFICANCE Surface properties did not significantly influence bacterial adhesion. More S. mutans bacteria accumulated on ACT than on the nanofilled composite and on CN. CN had antibacterial effects against Streptococcus mutans biofilms.
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Affiliation(s)
- Rawan Daabash
- Department of Restorative Dentistry, College of Dentistry, King Saud University, Riyadh, Saudi Arabia.
| | - Mohammed Q Alqahtani
- Department of Restorative Dentistry, College of Dentistry, King Saud University, Riyadh, Saudi Arabia
| | - Richard Bengt Price
- Department of Dental Clinical Sciences, Dalhousie University, Faculty of Dentistry, Halifax, Nova Scotia, Canada
| | - Abdulrahman Alshabib
- Department of Restorative Dentistry, College of Dentistry, King Saud University, Riyadh, Saudi Arabia
| | - Abdurahman Niazy
- Department of Oral Medicine and Diagnostic Sciences, College of Dentistry, King Saud University, Riyadh, Saudi Arabia
| | - Maan M Alshaafi
- Department of Restorative Dentistry, College of Dentistry, King Saud University, Riyadh, Saudi Arabia
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Kyrylenko S, Sowa M, Kazek-Kęsik A, Stolarczyk A, Pisarek M, Husak Y, Korniienko V, Deineka V, Moskalenko R, Matuła I, Michalska J, Jakóbik-Kolon A, Mishchenko O, Pogorielov M, Simka W. Nitrilotriacetic Acid Improves Plasma Electrolytic Oxidation of Titanium for Biomedical Applications. ACS APPLIED MATERIALS & INTERFACES 2023; 15:19863-19876. [PMID: 37041124 PMCID: PMC10141263 DOI: 10.1021/acsami.3c00170] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Figures] [Subscribe] [Scholar Register] [Indexed: 05/03/2023]
Abstract
Dental implants have become a routine, affordable, and highly reliable technology to replace tooth loss. In this regard, titanium and its alloys are the metals of choice for the manufacture of dental implants because they are chemically inert and biocompatible. However, for special cohorts of patients, there is still a need for improvements, specifically to increase the ability of implants to integrate into the bone and gum tissues and to prevent bacterial infections that can subsequently lead to peri-implantitis and implant failures. Therefore, titanium implants require sophisticated approaches to improve their postoperative healing and long-term stability. Such treatments range from sandblasting to calcium phosphate coating, fluoride application, ultraviolet irradiation, and anodization to increase the bioactivity of the surface. Plasma electrolytic oxidation (PEO) has gained popularity as a method for modifying metal surfaces and delivering the desired mechanical and chemical properties. The outcome of PEO treatment depends on the electrochemical parameters and composition of the bath electrolyte. In this study, we investigated how complexing agents affect the PEO surfaces and found that nitrilotriacetic acid (NTA) can be used to develop efficient PEO protocols. The PEO surfaces generated with NTA in combination with sources of calcium and phosphorus were shown to increase the corrosion resistance of the titanium substrate. They also support cell proliferation and reduce bacterial colonization and, hence, lead to a reduction in failed implants and repeated surgeries. Moreover, NTA is an ecologically favorable chelating agent. These features are necessary for the biomedical industry to be able to contribute to the sustainability of the public healthcare system. Therefore, NTA is proposed to be used as a component of the PEO bath electrolyte to obtain bioactive surface layers with properties desired for next-generation dental implants.
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Affiliation(s)
- Sergiy Kyrylenko
- Biomedical
Research Center, Sumy State University, 31 Sanatorna Street, Sumy 40018, Ukraine
| | - Maciej Sowa
- Faculty
of Chemistry, Silesian University of Technology, 6 B. Krzywoustego Street, 44-100 Gliwice, Poland
| | - Alicja Kazek-Kęsik
- Faculty
of Chemistry, Silesian University of Technology, 6 B. Krzywoustego Street, 44-100 Gliwice, Poland
| | - Agnieszka Stolarczyk
- Faculty
of Chemistry, Silesian University of Technology, 6 B. Krzywoustego Street, 44-100 Gliwice, Poland
| | - Marcin Pisarek
- Institute
of Physical Chemistry PAS, M. Kasprzaka Street 44/52, 01-224 Warsaw, Poland
| | - Yevheniia Husak
- Biomedical
Research Center, Sumy State University, 31 Sanatorna Street, Sumy 40018, Ukraine
- Faculty
of Chemistry, Silesian University of Technology, 6 B. Krzywoustego Street, 44-100 Gliwice, Poland
| | - Viktoriia Korniienko
- Biomedical
Research Center, Sumy State University, 31 Sanatorna Street, Sumy 40018, Ukraine
- Institute
of Atomic Physics and Spectroscopy, University
of Latvia, 3 Jelgavas
Street, Riga LV-1004, Latvia
| | - Volodymyr Deineka
- Biomedical
Research Center, Sumy State University, 31 Sanatorna Street, Sumy 40018, Ukraine
| | - Roman Moskalenko
- Ukrainian-Swedish
Research Center SUMEYA, Sumy State University, 31 Pryvokzalna Street, Sumy 40018, Ukraine
| | - Izabela Matuła
- Faculty
of
Science and Technology, Institute of Materials Engineering, University of Silesia, 75 Pułku Piechoty Street 1a, 41-500 Chorzów, Poland
| | - Joanna Michalska
- Faculty
of Chemistry, Silesian University of Technology, 6 B. Krzywoustego Street, 44-100 Gliwice, Poland
| | - Agata Jakóbik-Kolon
- Faculty
of Chemistry, Silesian University of Technology, 6 B. Krzywoustego Street, 44-100 Gliwice, Poland
| | - Oleg Mishchenko
- Nano
Prime LTD, 25 Metalowców
Street, 39-200 Dębica, Poland
- Zaporizhzhia
State Medical University, 26 Maiakovskyi Avenue, 69035 Zaporizhzhia, Ukraine
| | - Maksym Pogorielov
- Biomedical
Research Center, Sumy State University, 31 Sanatorna Street, Sumy 40018, Ukraine
- Institute
of Atomic Physics and Spectroscopy, University
of Latvia, 3 Jelgavas
Street, Riga LV-1004, Latvia
| | - Wojciech Simka
- Faculty
of Chemistry, Silesian University of Technology, 6 B. Krzywoustego Street, 44-100 Gliwice, Poland
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Simila HO, Boccaccini AR. Sol-gel synthesis of lithium doped mesoporous bioactive glass nanoparticles and tricalcium silicate for restorative dentistry: Comparative investigation of physico-chemical structure, antibacterial susceptibility and biocompatibility. Front Bioeng Biotechnol 2023; 11:1065597. [PMID: 37077228 PMCID: PMC10106781 DOI: 10.3389/fbioe.2023.1065597] [Citation(s) in RCA: 4] [Impact Index Per Article: 4.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/09/2022] [Accepted: 03/14/2023] [Indexed: 04/05/2023] Open
Abstract
Introduction: The sol-gel method for production of mesoporous bioactive glass nanoparticles (MBGNs) has been adapted to synthesize tricalcium silicate (TCS) particles which, when formulated with other additives, form the gold standard for dentine-pulp complex regeneration. Comparison of TCS and MBGNs obtained by sol-gel method is critical considering the results of the first ever clinical trials of sol-gel BAG as pulpotomy materials in children. Moreover, although lithium (Li) based glass ceramics have been long used as dental prostheses materials, doping of Li ion into MBGNs for targeted dental applications is yet to be investigated. The fact that lithium chloride benefits pulp regeneration in vitro also makes this a worthwhile undertaking. Therefore, this study aimed to synthesize TCS and MBGNs doped with Li by sol-gel method, and perform comparative characterizations of the obtained particles.Methods: TCS particles and MBGNs containing 0%, 5%, 10% and 20% Li were synthesized and particle morphology and chemical structure determined. Powder concentrations of 15mg/10 mL were incubated in artificial saliva (AS), Hank’s balanced saline solution (HBSS) and simulated body fluid (SBF), at 37°C for 28 days and pH evolution and apatite formation, monitored. Bactericidal effects against S. aureus and E. coli, as well as possible cytotoxicity against MG63 cells were also evaluated through turbidity measurements.Results: MBGNs were confirmed to be mesoporous spheres ranging in size from 123 nm to 194 nm, while TCS formed irregular nano-structured agglomerates whose size was generally larger and variable. From ICP-OES data, extremely low Li ion incorporation into MBGNs was detected. All particles had an alkalinizing effect on all immersion media, but TCS elevated pH the most. SBF resulted in apatite formation for all particle types as early as 3 days, but TCS appears to be the only particle to form apatite in AS at a similar period. Although all particles had an effect on both bacteria, this was pronounced for undoped MBGNs. Whereas all particles are biocompatible, MBGNs showed better antimicrobial properties while TCS particles were associated with greater bioactivity.Conclusion: Synergizing these effects in dental biomaterials may be a worthwhile undertaking and realistic data on bioactive compounds targeting dental application may be obtained by varying the immersion media.
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Zhang OL, Niu JY, Yin IX, Yu OY, Mei ML, Chu CH. Bioactive Materials for Caries Management: A Literature Review. Dent J (Basel) 2023; 11:dj11030059. [PMID: 36975556 PMCID: PMC10047026 DOI: 10.3390/dj11030059] [Citation(s) in RCA: 10] [Impact Index Per Article: 10.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/23/2022] [Revised: 02/20/2023] [Accepted: 02/21/2023] [Indexed: 02/25/2023] Open
Abstract
Researchers have developed novel bioactive materials for caries management. Many clinicians also favour these materials, which fit their contemporary practice philosophy of using the medical model of caries management and minimally invasive dentistry. Although there is no consensus on the definition of bioactive materials, bioactive materials in cariology are generally considered to be those that can form hydroxyapatite crystals on the tooth surface. Common bioactive materials include fluoride-based materials, calcium- and phosphate-based materials, graphene-based materials, metal and metal-oxide nanomaterials and peptide-based materials. Silver diamine fluoride (SDF) is a fluoride-based material containing silver; silver is antibacterial and fluoride promotes remineralisation. Casein phosphopeptide-amorphous calcium phosphate is a calcium- and phosphate-based material that can be added to toothpaste and chewing gum for caries prevention. Researchers use graphene-based materials and metal or metal-oxide nanomaterials as anticaries agents. Graphene-based materials, such as graphene oxide-silver, have antibacterial and mineralising properties. Metal and metal-oxide nanomaterials, such as silver and copper oxide, are antimicrobial. Incorporating mineralising materials could introduce remineralising properties to metallic nanoparticles. Researchers have also developed antimicrobial peptides with mineralising properties for caries prevention. The purpose of this literature review is to provide an overview of current bioactive materials for caries management.
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Affiliation(s)
| | - John Yun Niu
- Faculty of Dentistry, The University of Hong Kong, Hong Kong, China
| | - Iris Xiaoxue Yin
- Faculty of Dentistry, The University of Hong Kong, Hong Kong, China
| | - Ollie Yiru Yu
- Faculty of Dentistry, The University of Hong Kong, Hong Kong, China
| | - May Lei Mei
- Faculty of Dentistry, The University of Hong Kong, Hong Kong, China
- Faculty of Dentistry, The University of Otago, Dunedin 9054, New Zealand
| | - Chun Hung Chu
- Faculty of Dentistry, The University of Hong Kong, Hong Kong, China
- Correspondence:
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11
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Ong J, Yap AU, Abdul Aziz A, Yahya NA. Flexural Properties of Contemporary Bioactive Restorative Materials: Effect of Environmental pH. Oper Dent 2023; 48:90-97. [PMID: 36445974 DOI: 10.2341/21-202-l] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Accepted: 05/20/2022] [Indexed: 11/30/2022]
Abstract
This study investigated the effects of environmental pH on the flexural properties of ion-releasing restorative materials (IRMs), including giomer (Beautifil-Bulk Restorative - BB), alkasite (Cention N - CN), bioactive composite (Activa - AB) and resin-modified glass ionomer (Riva Light Cure -RV) restoratives. A bio-inert resin-based composite (Filtek Bulk-fill Posterior - FB) served as the control. Stainless steel molds were used to fabricate 40 beam-shaped specimens (12mm × 2mm × 2mm) for each material. The specimens were finished, measured, and randomly distributed into four groups (n=10) and immersed in aqueous solutions of pH 3.0, pH 5.0, pH 6.8, and pH 10.0 at 37°C for 28 days. Specimens were then subjected to a uniaxial three-point bending flexural test with a load cell of 5 KN and a fixed deformation rate of 0.5 mm/min until fracture occurred. Flexural modulus and strength were statistically analyzed using analysis of variance/Dunnet T3's test (p=0.05). Mean flexural modulus varied from (2.40±0.41 to 9.65±1.21 GPa), while mean flexural strength ranged from (21.56±2.78 to 163.86±13.13 MPa). Significant differences in flexural properties were observed among the various pH values and materials. All materials immersed in artificial saliva (pH 6.8) presented the highest flexural properties, except AB. The flexural strength of AB was significantly better when exposed to acidic environments. FB had better flexural properties than IRMs after exposure to a range of environmental pH values.
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Affiliation(s)
- Jex Ong
- Joshua Ee Xin Ong, BDS, MJDF RCS, MOSc, Centre of Restorative Dentistry Studies, Faculty of Dentistry, MARA University of Technology, Malaysia
| | - A U Yap
- Adrian U-Jin Yap, BDS, MSc, PhD, Grad Dip Psychotherapy, Department of Dentistry, Ng Teng Fong General Hospital, National University Health System, Singapore
| | - A Abdul Aziz
- Azwatee Abdul Aziz, BDS, MClinDent, PhD, Department of Restorative Dentistry, Faculty of Dentistry, University of Malaya, Malaysia
| | - N A Yahya
- *Noor Azlin Yahya, DipTrans, BDS, MDentSci, Department of Restorative Dentistry, Faculty of Dentistry, University of Malaya, Malaysia
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12
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Bioactivity of Dental Restorative Materials: FDI Policy Statement. Int Dent J 2022; 73:21-27. [PMID: 36577639 PMCID: PMC9875272 DOI: 10.1016/j.identj.2022.11.012] [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: 11/09/2022] [Accepted: 11/20/2022] [Indexed: 12/28/2022] Open
Abstract
The term bioactivity is being increasingly used in medicine and dentistry. Due to its positive connotation, it is frequently utilised for advertising dental restorative materials. However, there is confusion about what the term means, and concerns have been raised about its potential overuse. Therefore, FDI decided to publish a Policy Statement about the bioactivity of dental restorative materials to clarify the term and provide some caveats for its use in advertising. Background information for this Policy Statement was taken from the current literature, mainly from the PubMed database and the internet. Bioactive restorative materials should have beneficial/desired effects. These effects should be local, intended, and nontoxic and should not interfere with a material's principal purpose, namely dental tissue replacement. Three mechanisms for the bioactivity of such materials have been identified: purely biological, mixed biological/chemical, or strictly chemical. Therefore, when the term bioactivity is used in an advertisement or in a description of a dental restorative material, scientific evidence (in vitro or in situ, and preferably in clinical studies) should be provided describing the mechanism of action, the duration of the effect (especially for materials releasing antibacterial substances), and the lack of significant adverse biological side effects (including the development and spread of antimicrobial resistance). Finally, it should be documented that the prime purpose, for instance, to be used to rebuild the form and function of lost tooth substance or lost teeth, is not impaired, as demonstrated by data from in vitro and clinical studies. The use of the term bioactive dental restorative material in material advertisement/information should be restricted to materials that fulfil all the requirements as described in the FDI Policy Statement.
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13
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Kharouf N, Sauro S, Eid A, Zghal J, Jmal H, Seck A, Macaluso V, Addiego F, Inchingolo F, Affolter-Zbaraszczuk C, Meyer F, Haikel Y, Mancino D. Physicochemical and Mechanical Properties of Premixed Calcium Silicate and Resin Sealers. J Funct Biomater 2022; 14:jfb14010009. [PMID: 36662056 PMCID: PMC9866383 DOI: 10.3390/jfb14010009] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/28/2022] [Revised: 12/13/2022] [Accepted: 12/21/2022] [Indexed: 12/24/2022] Open
Abstract
The aim of the present in vitro study was to evaluate specific mechanical and physicochemical properties of two calcium silicate based sealers, (AH Plus Bioceramic “AHPB”; Well-Root ST “WRST”), and a conventional resin sealer (AH Plus “AHP”). These aims were accomplished by assessing the porosity, pH, compression strength, roughness, wettability and cell attachment of the tested materials. The results were compared statistically using the one-way ANOVA test. Higher pH values were obtained in both AHPB and WRST compared to AHP at 3, 24 and 72 h (p < 0.05). A greater level of porosity and wettability was detected for both AHPB and WRST compared to the resin sealer AHP (p < 0.05). Evident cell growth characterized by elongated morphology was observed on the surface of AHPB and WRST, while only a thin layer of cells was seen on the surface of AHP. A significant lower compression strength and modulus were obtained in the specimens created using AHPB compared to those made with AHP and WRST (p < 0.05). The removal of calcium silicates may be quite tricky during endodontic retreatment. In conclusion, considering the limitations of the present in vitro study, both calcium silicate sealers demonstrated good physicochemical properties. However, the lower compression strength and modulus of AHPB may facilitate its removal and make the retreatment procedures considerably easier.
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Affiliation(s)
- Naji Kharouf
- Department of Biomaterials and Bioengineering, INSERM UMR_S, Strasbourg University, 67000 Strasbourg, France
- Department of Endodontics, Faculty of Dental Medicine, Strasbourg University, 67000 Strasbourg, France
- Correspondence: ; Tel.: +33-667522841
| | - Salvatore Sauro
- Dental Biomaterials and Minimally Invasive Dentistry, Department of Dentistry, Cardenal Herrera-CEU University, CEU Universities, C/Santiago Ramón y Cajal, s/n., Alfara del Patriarca, 46115 Valencia, Spain
- Department Interdisciplinary of Bari, Università di Bari “Aldo Moro”, Giulio Cesare Square, 11, 70124 Bari, Italy
| | - Ammar Eid
- Department of Endodontics, Faculty of Dental Medicine, Damascus University, Damascus 0100, Syria
| | - Jihed Zghal
- Laboratoire Energetique Mecanique Electromagnetisme, University of Paris Ouest, 50 Rue de Sèvres, 92410 Ville d’Avray, France
| | - Hamdi Jmal
- ICube Laboratory, Mechanics Department, UMR 7357 CNRS, University of Strasbourg, 67000 Strasbourg, France
| | - Anta Seck
- Department of Conservative Dentistry and Endodontics, Department of Odontostomatology, Faculty of Medicine, Pharmacy and Odontology, Cheikh Anta Diop University, Dakar 10700, Senegal
| | | | - Frédéric Addiego
- Luxembourg Institute of Science and Technology (LIST), Department Materials Research and Technology (MRT), ZAE Robert Steichen, 5 Rue Bommel, L-4940 Hautcharage, Luxembourg
| | - Francesco Inchingolo
- Department Interdisciplinary of Bari, Università di Bari “Aldo Moro”, Giulio Cesare Square, 11, 70124 Bari, Italy
| | | | - Florent Meyer
- Department of Biomaterials and Bioengineering, INSERM UMR_S, Strasbourg University, 67000 Strasbourg, France
- Department of Endodontics, Faculty of Dental Medicine, Strasbourg University, 67000 Strasbourg, France
- Pôle de Médecine et Chirurgie Bucco-Dentaire, Hôpital Civil, Hôpitaux Universitaire de Strasbourg, 67000 Strasbourg, France
| | - Youssef Haikel
- Department of Biomaterials and Bioengineering, INSERM UMR_S, Strasbourg University, 67000 Strasbourg, France
- Department of Endodontics, Faculty of Dental Medicine, Strasbourg University, 67000 Strasbourg, France
- Pôle de Médecine et Chirurgie Bucco-Dentaire, Hôpital Civil, Hôpitaux Universitaire de Strasbourg, 67000 Strasbourg, France
| | - Davide Mancino
- Department of Biomaterials and Bioengineering, INSERM UMR_S, Strasbourg University, 67000 Strasbourg, France
- Department of Endodontics, Faculty of Dental Medicine, Strasbourg University, 67000 Strasbourg, France
- Pôle de Médecine et Chirurgie Bucco-Dentaire, Hôpital Civil, Hôpitaux Universitaire de Strasbourg, 67000 Strasbourg, France
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Bioactivity Potential of Bioceramic-Based Root Canal Sealers: A Scoping Review. LIFE (BASEL, SWITZERLAND) 2022; 12:life12111853. [PMID: 36430988 PMCID: PMC9697500 DOI: 10.3390/life12111853] [Citation(s) in RCA: 2] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Figures] [Subscribe] [Scholar Register] [Received: 09/28/2022] [Revised: 10/19/2022] [Accepted: 10/31/2022] [Indexed: 11/16/2022]
Abstract
INTRODUCTION Bioceramic-based root canal sealers are novel materials with a bioactivity potential that stands out compared with conventional root canal sealers. However, the term bioactivity may be overused and is often misunderstood. Hence, the objective of this study was to synthesize and map key concepts related to the bioactivity analysis of bioceramic-based root canal sealers. METHODS The present scoping review is reported in accordance with the PRISMA-ScR Statement and is registered in the Open Science Framework. Two blinded reviewers carried out a comprehensive search in six databases up to January 10th, 2022: MEDLINE, Scopus, Embase, Web of Science, Cochrane Library, and Lilacs/BBO. Eligibility was considered for in vitro and in vivo studies that evaluated the bioactivity potential of bioceramic-based root canal sealers. RESULTS A total of 53 studies were included in the qualitative synthesis. In vitro bioactivity was evaluated through the mineralization potential, formation of carbonated apatite on the surface, and the gene expression related to proteins involved in the mineralization process. Meanwhile, for in vivo studies, staining techniques associated with immunohistochemical tests were mainly used to detect mineralization on the material-host tissue interface. CONCLUSIONS According to the methodology used, the most prevalent methods to assess bioactivity in acellular form were the immersion of the material in Hank's balanced salt solution, followed by surface observation with scanning electron microscopy and energy dispersive X-ray. In cell cultures, the chosen method was usually Alizarin Red staining, followed by the evaluation of alkaline phosphatase enzymatic activity and the use of molecular biology tests.
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Daabash R, Alshabib A, Alqahtani MQ, Price RB, Silikas N, Alshaafi MM. Ion releasing direct restorative materials: Key mechanical properties and wear. Dent Mater 2022; 38:1866-1877. [DOI: 10.1016/j.dental.2022.09.007] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/31/2022] [Revised: 09/18/2022] [Accepted: 09/22/2022] [Indexed: 11/15/2022]
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Okamoto M, Matsumoto S, Moriyama K, Huang H, Watanabe M, Miura J, Sugiyama K, Hirose Y, Mizuhira M, Kuriki N, Leprince JG, Takahashi Y, Kawabata S, Hayashi M. Biological Evaluation of the Effect of Root Canal Sealers Using a Rat Model. Pharmaceutics 2022; 14:pharmaceutics14102038. [PMID: 36297473 PMCID: PMC9606985 DOI: 10.3390/pharmaceutics14102038] [Citation(s) in RCA: 4] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/30/2022] [Revised: 09/13/2022] [Accepted: 09/15/2022] [Indexed: 11/16/2022] Open
Abstract
Gutta-percha points and root canal sealers have been used for decades in endodontics for root canal obturation. With techniques such as single cone methods, the amount of sealer is larger, making their properties more critical. However, relatively few reports have comprehensively evaluated their biological effects. To this end, we evaluated three types of sealers, zinc oxide-fatty acid-, bio-glass- and methacrylate resin-containing sealers were considered. Their biological effects were evaluated using a rat subcutaneous implantation model. Each sealer was loaded inside a Teflon tube and implanted subcutaneously in the backs of rats. Inflammatory cells were observed around all samples 7 days after implantation and reduced after 28 days. Our results revealed that all samples were in contact with the subcutaneous tissue surrounding the sealer. Additionally, Ca and P accumulation was observed in only the bio-glass-containing sealer. Furthermore, each of the three sealers exhibited unique immune and inflammatory modulatory effects. In particular, bio-glass and methacrylate resin sealers were found to induce variable gene expression in adjacent subcutaneous tissues related to angiogenesis, wound healing, muscle tissue, and surrounding subcutaneous tissue. These results may help to understand the biological impacts of root canal sealers on surrounding biological tissues, guiding future research and comparisons with new generations of materials.
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Affiliation(s)
- Motoki Okamoto
- Department of Restorative Dentistry and Endodontology, Osaka University Graduate School of Dentistry, 1-8 Yamadaoka, Suita, Osaka 565-0871, Japan
- Correspondence: ; Tel.: +81-6-6879-2927
| | - Sayako Matsumoto
- Department of Restorative Dentistry and Endodontology, Osaka University Graduate School of Dentistry, 1-8 Yamadaoka, Suita, Osaka 565-0871, Japan
| | - Kiichi Moriyama
- Department of Restorative Dentistry and Endodontology, Osaka University Graduate School of Dentistry, 1-8 Yamadaoka, Suita, Osaka 565-0871, Japan
| | - Hailing Huang
- Department of Restorative Dentistry and Endodontology, Osaka University Graduate School of Dentistry, 1-8 Yamadaoka, Suita, Osaka 565-0871, Japan
| | - Masakatsu Watanabe
- Department of Restorative Dentistry and Endodontology, Osaka University Graduate School of Dentistry, 1-8 Yamadaoka, Suita, Osaka 565-0871, Japan
| | - Jiro Miura
- Division for Interdisciplinary Dentistry, Osaka University Dental Hospital. 1-8 Yamadaoka, Suita, Osaka 565-0871, Japan
| | - Keita Sugiyama
- Division for Interdisciplinary Dentistry, Osaka University Dental Hospital. 1-8 Yamadaoka, Suita, Osaka 565-0871, Japan
| | - Yujiro Hirose
- Department of Oral and Molecular Microbiology, Osaka University Graduate School of Dentistry, 1-8 Yamadaoka, Suita, Osaka 565-0871, Japan
| | - Manabu Mizuhira
- Bruker Japan K.K. Nano Analytics Division, 3-9 Moriyacho, Yokohama, Kanagawa 221-0022, Japan
| | - Nanako Kuriki
- Department of Restorative Dentistry and Endodontology, Osaka University Graduate School of Dentistry, 1-8 Yamadaoka, Suita, Osaka 565-0871, Japan
| | - Julian G. Leprince
- DRIM Research Group & Advanced Drug Delivery and Biomaterials, Louvain Drug Research Institute, UCLouvain, 1200 Brussels, Belgium
| | - Yusuke Takahashi
- Department of Restorative Dentistry and Endodontology, Osaka University Graduate School of Dentistry, 1-8 Yamadaoka, Suita, Osaka 565-0871, Japan
| | - Shigetada Kawabata
- Department of Oral and Molecular Microbiology, Osaka University Graduate School of Dentistry, 1-8 Yamadaoka, Suita, Osaka 565-0871, Japan
| | - Mikako Hayashi
- Department of Restorative Dentistry and Endodontology, Osaka University Graduate School of Dentistry, 1-8 Yamadaoka, Suita, Osaka 565-0871, Japan
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Garoushi S, Vallittu P, Lassila L. Development and characterization of ion-releasing fiber-reinforced flowable composite. Dent Mater 2022; 38:1598-1609. [PMID: 36041943 DOI: 10.1016/j.dental.2022.08.006] [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: 06/21/2022] [Revised: 08/12/2022] [Accepted: 08/18/2022] [Indexed: 11/03/2022]
Abstract
OBJECTIVE This study aimed to develop and characterize an ion-releasing experimental fiber-reinforced flowable composite (Bio-SFRC) and dentin treatment solution made of poly(acrylic acid) (PAA) with a high molecular weight. In addition we also evaluated the interface structure and mineralization potential between the Bio-SFRC and dentin. METHODS Some mechanical properties (flexural properties and fracture toughness) of Bio-SFRC in comparison with commercial inert (G-aenial Flo X) and ion-releasing materials (ACTIVA-BioActive Base/Liner and Fuji II LC) were assessed (n = 8/group). Calcium-release at different time-points was measured during the first six weeks by using a calcium-ion selective electrode. Surface analysis of composites after being stored in simulated body fluid (SBF) was investigated by using SEM/EDS. Dentin disks (n = 50) were prepared from extracted sound teeth and demineralization was simulated by acid etching. SEM/EDS was used to evaluate the microstructure of dentin on the top surface and at interface with composites after being stored in SBF. RESULTS Bio-SFRC showed higher fracture toughness (1.6 MPa m1/2) (p < 0.05) compared to Flo X (1.2 MPa m1/2), ACTIVA (1 MPa m1/2) and Fuji II LC (0.8 MPa m1/2). Accumulative calcium release after six weeks from Bio-SFRC (15 mg/l) was higher than other tested ion-releasing materials (≈ 6 mg/l). Mineralization was clearly seen at the interface between treated dentin and Bio-SFRC. None of the commercial tested materials showed signs of mineralization at the interface and dentinal tubules remained open. SIGNIFICANCE Developing such reinforced ion-releasing flowable composite and PAA solution might offer the potential for mineralization at the interface and inside the organic matrix of demineralized dentin.
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Affiliation(s)
- Sufyan Garoushi
- Department of Biomaterials Science and Turku Clinical Biomaterial Center -TCBC, Institute of Dentistry, University of Turku, Turku, Finland.
| | - Pekka Vallittu
- Department of Biomaterials Science and Turku Clinical Biomaterial Center -TCBC, Institute of Dentistry, University of Turku, Turku, Finland; City of Turku Welfare Division, Oral Health Care, Turku, Finland
| | - Lippo Lassila
- Department of Biomaterials Science and Turku Clinical Biomaterial Center -TCBC, Institute of Dentistry, University of Turku, Turku, Finland
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German MJ. Developments in resin-based composites. Br Dent J 2022; 232:638-643. [PMID: 35562465 PMCID: PMC9106574 DOI: 10.1038/s41415-022-4240-8] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/28/2022] [Accepted: 03/21/2022] [Indexed: 11/10/2022]
Abstract
With the phasing down of dental amalgam use in response to the Minamata Convention, it is likely that resin-based composite restoratives will be the dental material of choice for the direct restoration of compromised dentition in the UK, at least for the foreseeable future. The current materials have a finite lifespan, with failures predominately due to either secondary caries or fracture. Consequently, there is considerable in vitro research reported each year with the intention of producing improved materials. This review describes the recent research in materials designed to have low polymerisation shrinkage and increased mechanical properties. Also described is research into materials that are either antimicrobial or are designed to release ions into the surrounding oral environment, with the aim of stimulating remineralisation of the surrounding dental tissues. It is hoped that by describing this recent research, clinicians will be able to gain some understanding of the current research that will potentially lead to new products that they can use to improve patient treatment in the future. Provides an overview of recent research developments aimed at improving the performance of resin-based composites. Details the recent developments in monomers and fillers to produce resin-based composites that either have lower polymerisation shrinkage or better mechanical properties compared to current commercially available products. Describes recent research on developing resin-based composites that can act as potential sources of antimicrobial or remineralising agents.
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Affiliation(s)
- Matthew J German
- School of Dental Sciences, Translational and Clinical Research Institute, Newcastle University, Framlington Place, Newcastle upon Tyne, UK.
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Isolation and Identification of Cytotoxic Compounds Present in Biomaterial Life ®. MATERIALS 2022; 15:ma15030871. [PMID: 35160817 PMCID: PMC8838329 DOI: 10.3390/ma15030871] [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: 12/30/2021] [Revised: 01/20/2022] [Accepted: 01/21/2022] [Indexed: 11/16/2022]
Abstract
Direct pulp capping consists of a procedure in which a material is directly placed over the exposed pulp to maintain dental vitality. Although still widely used in clinical practice, previous in vitro studies found that the biomaterial Life® presented high cytotoxicity, leading to cell death. This study aimed to identify the Life® constituents responsible for its cytotoxic effects on odontoblast-like cells (MDPC-23). Aqueous medium conditioned with Life® was subjected to liquid-liquid extraction with ethyl acetate. After solvent removal, cells were treated with residues isolated from the organic and aqueous fractions. MTT and Trypan blue assays were carried out to evaluate the metabolic activity and cell death. The organic phase residue promoted a significant decrease in metabolic activity and increased cell death. On the contrary, no cytotoxic effects were observed with the mixture from the aqueous fraction. Spectroscopic and spectrometric methods allowed the identification of the toxic compounds. A mixture of the regioisomers ortho, para, and meta of N-ethyl-toluenesulfonamide was identified as the agent responsible for the toxicity of biomaterial Life® in MDPC-23 cells. These findings contribute to improving biomaterial research and development.
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