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Perarivalan I, Karunakaran J, Anbalagan N, Harishma S, Prasad V. Matrix metalloproteinase inhibitors in restorative dentistry. JOURNAL OF CONSERVATIVE DENTISTRY AND ENDODONTICS 2024; 27:566-571. [PMID: 38989495 PMCID: PMC11232771 DOI: 10.4103/jcde.jcde_199_24] [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: 04/11/2024] [Revised: 04/24/2024] [Accepted: 04/25/2024] [Indexed: 07/12/2024]
Abstract
Matrix metalloproteinases (MMPs) have been identified as agents that disintegrate the collagen structures of dental hybrid layers, resulting in reduced restorative bond strength. Multiple MMP inhibitors (MMPIs) are known to counteract this degenerative mechanism, thereby preserving bond strength and promoting the longevity of resin-based restorations. Additionally, literature suggests that certain MMPI materials possess antimicrobial/anticariogenic properties, potentially reducing the risk of secondary caries development. Therefore, this review article aims to narrate on the integration of matrix metalloproteinase inhibitors into adhesive systems and their impact on bond strength.
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Affiliation(s)
- I Perarivalan
- Department of Conservative Dentistry and Endodontics, Chettinad Dental College and Research Institute, Kelambakkam, Tamil Nadu, India
| | - Janani Karunakaran
- Department of Conservative Dentistry and Endodontics, Chettinad Dental College and Research Institute, Kelambakkam, Tamil Nadu, India
| | - Nathashri Anbalagan
- Department of Conservative Dentistry and Endodontics, Chettinad Dental College and Research Institute, Kelambakkam, Tamil Nadu, India
| | - S Harishma
- Department of Conservative Dentistry and Endodontics, Chettinad Dental College and Research Institute, Kelambakkam, Tamil Nadu, India
| | - Vishnu Prasad
- Department of Conservative Dentistry and Endodontics, Chettinad Dental College and Research Institute, Kelambakkam, Tamil Nadu, India
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da Silva EM, Amaral CM, Jardim RN, Barbosa MP, Rabello TB. Influence of Specimen Dimension, Water Immersion Protocol, and Surface Roughness on Water Sorption and Solubility of Resin-Based Restorative Materials. MATERIALS (BASEL, SWITZERLAND) 2024; 17:984. [PMID: 38473457 DOI: 10.3390/ma17050984] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Subscribe] [Scholar Register] [Received: 12/21/2023] [Revised: 02/16/2024] [Accepted: 02/18/2024] [Indexed: 03/14/2024]
Abstract
The evaluation of water sorption and solubility is pivotal for the development of new resin-based restorative materials with the potential for clinical application. The purpose of the present study was to evaluate the influence of the specimen dimension, water immersion protocol, and surface roughness on the water sorption and solubility of three resin-based restorative materials. Disk-shaped specimens of 15 mm × 1 mm, 10 mm × 1 mm, and 6 mm × 1 mm were produced with a composite resin (Z100), a resin cement (RelyX ARC), and an adhesive system (Single Bond 2-SB2). The specimens were immersed in distilled water according to four protocols: ISO (all the specimens for each group were vertically immersed in 50 mL); IV-10 (the specimens were individually and vertically immersed in 10 mL); IH-10 (the specimens were individually and horizontally immersed in 10 mL); and IH-2 (the specimens were individually and horizontally immersed in 2 mL). The surface roughness (Sa and Sp) was evaluated using an atomic force microscope, and the degree of conversion was determined using FT-IR spectrometry. The specimen dimension and water immersion protocol had no effect on water sorption and solubility. For the three resin-based restorative materials, Sp was higher than Sa. The degree of conversion was not influenced by the specimen dimension. The variations in the specimen dimension and water immersion protocol compared to those determined by ISO 4049 did not prevent the comparison between the values of water sorption and solubility obtained for a given resin-based restorative material.
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Affiliation(s)
- Eduardo Moreira da Silva
- Analytical Laboratory of Restorative Biomaterials-LABiom-R, Faculdade de Odontologia, Universidade Federal Fluminense, Niterói 24040-110, Brazil
| | - Cristiane Mariote Amaral
- Analytical Laboratory of Restorative Biomaterials-LABiom-R, Faculdade de Odontologia, Universidade Federal Fluminense, Niterói 24040-110, Brazil
| | - Renata Nunes Jardim
- Analytical Laboratory of Restorative Biomaterials-LABiom-R, Faculdade de Odontologia, Universidade Federal Fluminense, Niterói 24040-110, Brazil
| | - Marianna Pires Barbosa
- Analytical Laboratory of Restorative Biomaterials-LABiom-R, Faculdade de Odontologia, Universidade Federal Fluminense, Niterói 24040-110, Brazil
| | - Tiago Braga Rabello
- Faculdade de Odontologia, Universidade Federal do Rio de Janeiro, Rio de Janeiro 21941-902, Brazil
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Bedir MGA, Karadas M, Bedir F. Effect of matrix metalloproteinase inhibitors on bonding durability of universal adhesives. Dent Mater J 2023; 42:581-590. [PMID: 37302822 DOI: 10.4012/dmj.2022-282] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 06/13/2023]
Abstract
This study aimed to evaluate the effect of different matrix metalloproteinase inhibitors (MMPIs) on the microtensile bond strength (μTBS) and nanoleakage of universal adhesives. One hundred twenty non-carious human molars were prepared and randomly assigned to two groups: Scotchbond Bond Universal (SBU) and Gluma Bond Universal (GBU). The samples in each group were assigned to five subgroups (n=12) based on one control (water) and four MMPIs (Benzalkonium-chloride (BAC), Batimastat (BB94), Chlorhexidine (CHX), and Epigallocatechin-gallate (EGCG)). Each adhesive was applied in self-etch (SE) mode or etch-and-rinse (ER) mode. Dentin/composite sticks were fabricated and subjected to the μTBS test after 24 h or 6 months. At 6 months, MMPIs did not affect the μTBS of the adhesives, regardless of etching mode. Nanoleakage was more pronounced in ER mode than in SE mode for all subgroups. All MMPIs, with the exception of CHX, decreased the nanoleakage of GBU in ER mode.
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Affiliation(s)
| | - Muhammet Karadas
- Department of Restorative Dentistry, Faculty of Dentistry, Recep Tayyip Erdogan University
| | - Fatih Bedir
- Department of Restorative Dentistry, Faculty of Dentistry, Recep Tayyip Erdogan University
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Porto ICCDM, Lôbo TDLGF, Rodrigues RF, Lins RBE, da Silva MAB. Insight into the development of versatile dentin bonding agents to increase the durability of the bonding interface. FRONTIERS IN DENTAL MEDICINE 2023. [DOI: 10.3389/fdmed.2023.1127368] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 02/18/2023] Open
Abstract
Despite the huge improvements made in adhesive technology over the past 50 years, there are still some unresolved issues regarding the durability of the adhesive interface. A complete sealing of the interface between the resin and the dentin substrate remains difficult to achieve, and it is doubtful whether an optimal interdiffusion of the adhesive system within the demineralized collagen framework can be produced in a complete and homogeneous way. In fact, it is suggested that hydrolytic degradation, combined with the action of dentin matrix enzymes, destabilizes the tooth-adhesive bond and disrupts the unprotected collagen fibrils. While a sufficient resin–dentin adhesion is usually achieved immediately, bonding efficiency declines over time. Thus, here, a review will be carried out through a bibliographic survey of scientific articles published in the last few years to present strategies that have been proposed to improve and/or develop new adhesive systems that can help prevent degradation at the adhesive interface. It will specially focus on new clinical techniques or new materials with characteristics that contribute to increasing the durability of adhesive restorations and avoiding the recurrent replacement restorative cycle and the consequent increase in damage to the tooth.
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Portela MB, Barboza CM, da Silva EM, de Moraes DC, Simão RA, de Souza CR, Cardoso VDS, Ferreira-Pereira A, Vermelho AB, Supuran CT. Dentine biomodification by sulphonamides pre-treatment: bond strength, proteolytic inhibition, and antimicrobial activity. J Enzyme Inhib Med Chem 2023; 38:319-329. [DOI: 10.1080/14756366.2022.2150184] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/29/2022] Open
Affiliation(s)
- Maristela Barbosa Portela
- Departamento de Odontotécnica, Laboratório Analítico de Biomateriais Restauradores (LABiom-R), Faculdade de Odontologia, Universidade Federal Fluminense, Niterói, Brazil
| | - Caroliny Mello Barboza
- Departamento de Odontotécnica, Laboratório Analítico de Biomateriais Restauradores (LABiom-R), Faculdade de Odontologia, Universidade Federal Fluminense, Niterói, Brazil
| | - Eduardo Moreira da Silva
- Departamento de Odontotécnica, Laboratório Analítico de Biomateriais Restauradores (LABiom-R), Faculdade de Odontologia, Universidade Federal Fluminense, Niterói, Brazil
| | - Daniel Clemente de Moraes
- Laboratório de Bioquímica Microbiana, Instituto de Microbiologia Paulo de Góes, Universidade Federal do Rio de Janeiro, Rio de Janeiro, Brazil
| | - Renata Antoun Simão
- Instituto Alberto Luiz Coimbra de Pós-Graduação e Pesquisa de Engenharia (COPPE), Universidade Federal do Rio de Janeiro, Rio de Janeiro, Brazil
| | - Clara Ribeiro de Souza
- Departamento de Odontotécnica, Laboratório Analítico de Biomateriais Restauradores (LABiom-R), Faculdade de Odontologia, Universidade Federal Fluminense, Niterói, Brazil
| | - Verônica da Silva Cardoso
- Bioinovar-Biotecnologia: Unidade de Biocatálise, Bioprodutos e Bioenergia (BIOINOVAR), Instituto de Microbiologia Paulo de Góes, Universidade Federal do Rio de Janeiro, Rio de Janeiro, Brazil
| | - Antônio Ferreira-Pereira
- Laboratório de Bioquímica Microbiana, Instituto de Microbiologia Paulo de Góes, Universidade Federal do Rio de Janeiro, Rio de Janeiro, Brazil
| | - Alane Beatriz Vermelho
- Bioinovar-Biotecnologia: Unidade de Biocatálise, Bioprodutos e Bioenergia (BIOINOVAR), Instituto de Microbiologia Paulo de Góes, Universidade Federal do Rio de Janeiro, Rio de Janeiro, Brazil
| | - Claudiu T. Supuran
- NEUROFARBA Department, Sezione di Scienze Farmaceutiche, Universita degli Studi di Firenze, Florence, Italy
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Yaghmoor RB, Jamal H, Abed H, Allan E, Ashley P, Young A. Incorporation of MMP inhibitors into dental adhesive systems and bond strength of coronal composite restorations: A systematic review and meta-analysis of in vitro studies. JAPANESE DENTAL SCIENCE REVIEW 2022; 58:298-315. [PMID: 36247748 PMCID: PMC9557023 DOI: 10.1016/j.jdsr.2022.09.004] [Citation(s) in RCA: 4] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/23/2022] [Revised: 08/31/2022] [Accepted: 09/22/2022] [Indexed: 10/31/2022] Open
Abstract
Purpose To systematically review in vitro studies that incorporated MMP inhibitors into adhesive systems in terms of the effect on immediate and aged bond strength of dental composite to dentine. Materials and methods Independently, two reviewers conducted an electronic search in three databases (MEDLINE, EMBASE, and Google Scholar) following the Preferred Reporting Items for Systematic Review and Meta-Analyses Protocols (PRISMA-P), up to 6 March 2022. Results The search resulted in 894 papers, 33 of which were eligible to be included in the review; of those, 13 fulfilled the meta-analysis eligibility criteria. Nineteen inhibitors were used among the studies, and those included in the meta-analysis were 2%, 0.2% chlorhexidine (CHX), 5 µM GM1489, and 0.5%, 1% benzalkonium chloride (BAC). In the meta-analysis, while above inhibitors showed no adverse effect on bond strength, 0.2% CHX and 5 µM GM1489 caused a significant increase in immediate and 12-months bond strength. All other inhibitors resulted in a significant increase in bond strength at six months of ageing. Conclusions Incorporation of MMP inhibitors into the adhesive system has no unfavourable effect on immediate bond strength but a favourable effect on longer-term bond strength. Additionally, inhibitors other than CHX could have similar or better effects on bond strength.
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Affiliation(s)
- Rayan B. Yaghmoor
- Department of Restorative Dentistry, Faculty of Dentistry, Umm Al-Qura University, Makkah 24381, Saudi Arabia
- Department of Biomaterials and Tissue Engineering, UCL Eastman Dental Institute, Royal Free Hospital London, NW3 2PF, UK
- Department of Microbial Diseases, UCL Eastman Dental Institute, Royal Free Hospital, London NW3 2PF, UK
- Corresponding author at: Department of Restorative Dentistry, Faculty of Dentistry, Umm Al-Qura University, Makkah 24381, Saudi Arabia.
| | - Hasan Jamal
- Unit of Paediatric Dentistry, UCL Eastman Dental Institute, London WC1E 6DE, UK
| | - Hassan Abed
- Department of Basic and Clinical Oral Sciences, Umm Al-Qura University, Faculty of Dentistry, Makkah 24381, Saudi Arabia
| | - Elaine Allan
- Department of Microbial Diseases, UCL Eastman Dental Institute, Royal Free Hospital, London NW3 2PF, UK
| | - Paul Ashley
- Unit of Paediatric Dentistry, UCL Eastman Dental Institute, London WC1E 6DE, UK
| | - Anne Young
- Department of Biomaterials and Tissue Engineering, UCL Eastman Dental Institute, Royal Free Hospital London, NW3 2PF, UK
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Fronza BM, Braga RR, Cadenaro M. Dental Adhesives-Surface Modifications of Dentin Structure for Stable Bonding. Dent Clin North Am 2022; 66:503-515. [PMID: 36216443 DOI: 10.1016/j.cden.2022.05.002] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 06/16/2023]
Abstract
The latest advancements in dentin bonding have focused on strategies to impair degradation mechanisms in order to extend the longevity of bonded interfaces. Protease inhibitors can reduce collagen degradation within the hybrid layer (HL). Collagen cross-linkers allow better adhesive infiltration and also inhibit proteases activity. Particles added to adhesive can promote mineral precipitation within the HL, reducing nanoleakage and micropermeability, besides possible antimicrobial and enzymatic inhibition effects. Most of these approaches are still experimental, and aspects of the adhesive under the clinician's control are still determinant for the long-term stability of adhesive restorations.
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Affiliation(s)
- Bruna Marin Fronza
- Department of Biomaterials and Oral Biology, University of São Paulo, Av. Prof. Lineu Prestes, 2227, São Paulo, São Paulo 05508-000, Brazil
| | - Roberto Ruggiero Braga
- Department of Biomaterials and Oral Biology, University of São Paulo, Av. Prof. Lineu Prestes, 2227, São Paulo, São Paulo 05508-000, Brazil.
| | - Milena Cadenaro
- Department of Medical Sciences, University of Trieste, Strada di Fiume 447, Trieste 34149, Italy; Institute for Maternal and Child Health - IRCCS "Burlo Garofolo", Via dell'Istria 65/1, Trieste 34137, Italy
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Degradation and Stabilization of Resin-Dentine Interfaces in Polymeric Dental Adhesives: An Updated Review. COATINGS 2022. [DOI: 10.3390/coatings12081094] [Citation(s) in RCA: 3] [Impact Index Per Article: 1.5] [Reference Citation Analysis] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 12/13/2022]
Abstract
Instability of the dentine-resin interface is owed to the partial/incomplete penetration of the resin adhesives in the collagen fibrils. However, interfacial hydrolysis of the resin-matrix hybrid layer complex activates the collagenolytic and esterase enzymes that cause the degradation of the hybrid layer. Adequate hybridization is often prevented due to the water trapped between the interfibrillar spaces of the collagen network. Cyclic fatigue rupture and denaturation of the exposed collagen fibrils have been observed on repeated application of masticatory forces. To prevent interfacial microstructure, various approaches have been explored. Techniques that stabilize the resin–dentine bond have utilized endogenous proteases inhibitors, cross linking agents’ incorporation in the exposed collagen fibrils, an adhesive system free of water, and methods to increase the monomer penetration into the adhesives interface. Therefore, it is important to discover and analyze the causes of interfacial degradation and discover methods to stabilize the hybrid layer to execute new technique and materials. To achieve a predictable and durable adhesive resin, restoration is a solution to the many clinical problems arising due to microleakage, loss of integrity of the restoration, secondary caries, and postoperative sensitivity. To enhance the longevity of the resin-dentine bond strength, several experimental strategies have been carried out to improve the resistance to enzymatic degradation by inhibiting intrinsic collagenolytic activity. In addition, biomimetic remineralization research has advanced considerably to contemporary approaches of both intrafibrillar and extrafibrillar remineralization of dental hard tissues. Thus, in the presence of biomimetic analog complete remineralization of collagen, fibers are identified.
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Shu C, Zheng X, Wang Y, Xu Y, Zhang D, Deng S. Captopril inhibits matrix metalloproteinase activity and improves dentin bonding durability. Clin Oral Investig 2022; 26:3213-3225. [PMID: 34999991 DOI: 10.1007/s00784-021-04303-x] [Citation(s) in RCA: 2] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/14/2021] [Accepted: 11/18/2021] [Indexed: 01/08/2023]
Abstract
OBJECTIVES We investigated the inhibitory effects of captopril on matrix metalloproteinases (MMPs) and its effect as a primer on dentin bonding durability. MATERIALS AND METHODS One hundred fifty human third molars were selected. Flat surfaces of the middle dentin were exposed, etched 15 s, and followed by pretreatment with a primer for 60 s, including distilled water (control, the negative control primer), 2% chlorhexidine digluconate (CHD, the positive control primer), and captopril solution. Inhibitory effects of primers on MMPs were evaluated by hydroxyproline and gelatinase activity tests. All primers were applied on dentin followed by bonding. Some of the samples were sliced into slabs, placed in a fluorescent solution containing gelatin, and incubated for in situ zymography. Some were cut into sticks, and after aging for 1 day, 12 months, or 24 months, microtensile bonding strength was tested. Some were cut into slabs, aged for 1 day, 12 months, or 24 months, and taken out for nanoleakage tests to reveal interface defects. RESULTS Hydroxyproline and gelatinase activity analyses showed that captopril exerted better inhibitory effects on MMPs, relative to 2% CHD (p < 0.05). A 0.2% captopril aqueous solution (0.2% CapW) was chosen to apply to the dentin. In situ zymography showed that inhibitory effects of captopril on gelatinase were significantly higher compared to 2% CHD (p < 0.01). Microtensile strength revealed that the bonding effects of the 0.2% CapW group lasted longer, compared to the control and 2% CHD groups (p < 0.05). Interface defects, detected by nanoleakage, were significantly reduced in the 0.2% CapW group, compared to the control and 2% CHD groups (p < 0.05). CONCLUSIONS Captopril inhibits dentin MMP activities and effectively improves dentin bonding durability. CLINICAL RELEVANCE Captopril is a promising dentin bonding primer for improving bonding durability.
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Affiliation(s)
- Chang Shu
- Stomatology Hospital, School of Stomatology, Zhejiang University School of Medicine, Zhejiang Provincial Clinical Research Center for Oral Disease, Key Laboratory of Oral Biomedical Research of Zhejiang Province, Cancer Center of Zhejiang University, Hangzhou, 310006, People's Republic of China
| | - Xinyu Zheng
- Department of Stomatology, Zhejiang University Hospital, Zhejiang University, Hangzhou, People's Republic of China
| | - Yang Wang
- Stomatology Hospital, School of Stomatology, Zhejiang University School of Medicine, Zhejiang Provincial Clinical Research Center for Oral Disease, Key Laboratory of Oral Biomedical Research of Zhejiang Province, Cancer Center of Zhejiang University, Hangzhou, 310006, People's Republic of China
| | - Yi Xu
- Stomatology Hospital, School of Stomatology, Zhejiang University School of Medicine, Zhejiang Provincial Clinical Research Center for Oral Disease, Key Laboratory of Oral Biomedical Research of Zhejiang Province, Cancer Center of Zhejiang University, Hangzhou, 310006, People's Republic of China
| | - Denghui Zhang
- Stomatology Hospital, School of Stomatology, Zhejiang University School of Medicine, Zhejiang Provincial Clinical Research Center for Oral Disease, Key Laboratory of Oral Biomedical Research of Zhejiang Province, Cancer Center of Zhejiang University, Hangzhou, 310006, People's Republic of China
| | - Shuli Deng
- Stomatology Hospital, School of Stomatology, Zhejiang University School of Medicine, Zhejiang Provincial Clinical Research Center for Oral Disease, Key Laboratory of Oral Biomedical Research of Zhejiang Province, Cancer Center of Zhejiang University, Hangzhou, 310006, People's Republic of China.
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Parhi S, Pal S, Das SK, Ghosh P. Strategies toward development of antimicrobial biomaterials for dental healthcare applications. Biotechnol Bioeng 2021; 118:4590-4622. [PMID: 34599764 DOI: 10.1002/bit.27948] [Citation(s) in RCA: 6] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/28/2021] [Revised: 08/19/2021] [Accepted: 09/26/2021] [Indexed: 12/25/2022]
Abstract
Several approaches for elimination of oral pathogens are being explored at the present time since oral diseases remain prevalent affecting approximately 3.5 billion people worldwide. Need for antimicrobial biomaterials in dental healthcare include but is not restricted to designing resin composites and adhesives for prevention of dental caries. Constant efforts are also being made to develop antimicrobial strategies for clearance of endodontic space prior root canal treatment and for treatment of periimplantitis and periodontitis. This article discusses various conventional and nanotechnology-based strategies to achieve antimicrobial efficacy in dental biomaterials. Recent developments in the design and synthesis of antimicrobial peptides and antifouling zwitterionic polymers to effectively lessen the risks of antimicrobial drug resistance are also outlined in this review. Further, the role of contemporary strategies such as use of smart biomaterials, ionic solvent-based biomaterials and quorum quenchers incorporated biomaterials in the elimination of dental pathogens are described in detail. Lastly, we mentioned the approach of using polymers to print custom-made three-dimensional antibacterial dental products via additive manufacturing technologies. This review provides a critical perspective on the chemical, biomimetic, and engineering strategies intended for developing antimicrobial biomaterials that have the potential to substantially improve the dental health.
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Affiliation(s)
- Shivangi Parhi
- Division of Structural Biology and Bioinformatics, CSIR-Indian Institute of Chemical Biology, Kolkata, India.,Academy of Scientific and Innovative Research (AcSIR), AcSIR Headquarters CSIR-HRDC Campus, Ghaziabad, India
| | - Sreyasi Pal
- Division of Structural Biology and Bioinformatics, CSIR-Indian Institute of Chemical Biology, Kolkata, India
| | - Sujoy K Das
- Academy of Scientific and Innovative Research (AcSIR), AcSIR Headquarters CSIR-HRDC Campus, Ghaziabad, India.,Division of Infectious Diseases and Immunology, CSIR-Indian Institute of Chemical Biology, Kolkata, India
| | - Paulomi Ghosh
- Division of Structural Biology and Bioinformatics, CSIR-Indian Institute of Chemical Biology, Kolkata, India.,Academy of Scientific and Innovative Research (AcSIR), AcSIR Headquarters CSIR-HRDC Campus, Ghaziabad, India
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MMP Inhibitors and Dentin Bonding: Systematic Review and Meta-Analysis. Int J Dent 2021; 2021:9949699. [PMID: 34135969 PMCID: PMC8179777 DOI: 10.1155/2021/9949699] [Citation(s) in RCA: 21] [Impact Index Per Article: 7.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/02/2021] [Accepted: 05/19/2021] [Indexed: 12/12/2022] Open
Abstract
Objectives Resin-dentin bond strength decreases over time. This reduction is related to the loss of hybrid layer integrity. Collagenolytic enzymes, especially matrix metalloproteinases (MMPs), are responsible for the degradation of the collagen matrix of the hybrid layer. Various MMP inhibitors with the ability to prevent enzymatic degradation have been identified. This study aimed to systematically review the literature for studies which evaluated the effect of MMP inhibitors on the immediate and aged dentin bond strengths. Study SelectionScreening and analysis were carried out by two reviewers. Two databases were searched, and from a total of 740 articles, 43 were accepted for full review. 21 articles with 0.2%–2% chlorhexidine (CHX) treatments were included for meta-analysis. A risk of bias assessment was performed on all studies chosen for meta-analysis. A variety of MMP inhibitors have been studied, CHX being the most widely used. Conclusions A clear trend for a lower loss of dentin bond strength was observed with different MMP inhibitors. In meta-analysis, no significant difference was seen between the CHX and control in the immediate bond strengths. Bond strengths in the CHX group were significantly higher than the control group after aging (P < 0.001). The percentage of fractures occurring at the adhesive interface increased after aging. Five out of 21 studies included in the meta-analysis had high and the rest medium risk of bias. More long-term studies with lower risks of bias should be carried out to increase the reliability of results. Clinical RelevanceThe use of MMP inhibition with chlorhexidine can be recommended to increase the longevity of resin-dentin bond strength.
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Anton y Otero CI, Di Bella E, Krejci I, Bortolotto T. Effect of 9.3 μm CO2 and 2.94 μm Er:YAG Laser vs. Bur Preparations on Marginal Adaptation in Enamel and Dentin of Mixed Class V Cavities Restored With Different Restorative Systems. FRONTIERS IN DENTAL MEDICINE 2021. [DOI: 10.3389/fdmed.2021.668056] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/13/2022] Open
Abstract
This study aimed to compare marginal adaptation in enamel and dentin before and after aging of laser vs. bur-prepared mixed class V cavities restored by different restorative systems. Seventy two caries-free human molars were distributed to nine experimental groups; cavities were prepared using two different lasers: a handpiece -integrated 2.94 μm Er:YAG laser at 4.5 W, 300 mJ, and 0.75 W, 50 mJ with 15 Hz (LiteTouch, Light Instruments, Israel) and a novel CO2 laser at 12.95 W, 19.3 mJ, and 4.1 W, 6.11 mJ with 671 Hz (Solea 9.3 μm, Convergent Dental, USA). Cavities prepared with conventional diamond burs (Intensiv, Switzerland) in a red contra angle at high speed under maximal water cooling served as control. Cavities were prepared under simulation of dentinal fluid and restored using three different self-etching universal adhesives in combination with three nanohybrid composites, applied in two layers: Scotchbond Universal with Filtek Supreme XTE (3M, USA), G-Premio BOND with Essentia Universal (GC, Japan), and OptiBond Universal with Harmonize Universal (Kerr, USA). After restorations' polishing and simultaneous thermal (5–50°C, 2 min each) and mechanical loading (max. 49 N; 200,000 cycles), replicas of restoration margins were examined under SEM at × 200 magnification. Percentages of continuous margins (CMs) were quantified before and after the fatigue test and statistically compared (two-way ANOVA with Fisher's least significant difference [LSD] post hoc test). Significant differences were found in almost all groups between the results before and after the fatigue test, as well as between the different preparation tools and restorative materials (p < 0.05). Traditional bur preparations are confirmed as gold standard in enamel and dentin, as all three tested restorative systems provide results of marginal adaptation of more than 80% CM after loading. Er:YAG laser preparations can be equally effective in combination with SBU/Filtek Supreme XTE. CO2 laser ablation could not provide convincing results with the tested self-etching restorative systems. Marginal adaptation has been highly dependent on the substrate and showed impaired adhesion, especially in enamel. Scotchbond Universal/Filtek Supreme XTE showed the highest and most stable values of CM. The other two restorative systems were highly dependent on the preparation device of the substrate.
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Degirmenci BU, Degirmenci A, Kara E. Effects of Various Antioxidant Pretreatment Modalities on Adhesion to Sound and Caries-Affected Dentin: An In Vitro Study. JOURNAL OF ADVANCED ORAL RESEARCH 2021. [DOI: 10.1177/2320206821997985] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/16/2022]
Abstract
Aim: Natural antioxidants were offered as the answer of dentin adhesion issue. The aim of this study is to investigate the effects of proanthocyanidin and lycopene as pretreatment agents on the sound and caries-affected dentin surface on microtensile bond strength and microleakage. Materials and Methods: This study was designed as in vitro because of that 84 mandibular molar teeth were collected. Forty-two of the included teeth were carious teeth, while the other 42 were without caries. Sixty of them were used for microleakage and 24 for microtensile bond strength testing and scanning electron microscopy analysis. The samples were divided into six subgroups randomly according to dentin pretreatments: 5% proanthocyanidin, 5% lycopene, and no antioxidant application. After the restorative procedures, samples were attached to the microtensile tester. Samples were subjected to tensile stress in the load cell until they broke at a speed of 0.5 mm per min. Microtensile bond strength (µTBS) and microleakage test data were analyzed with two-way analysis of variance, Bonferroni correction, and Tamhane’s T2 tests. Results: Two-way variance analysis showed that dentin pretreatment applications, dentin substrate, and the interaction between these two parameters had statistically significant effects on µTBS values ( P < .001). There was no difference between dentin pretreatment applications in terms of microleakage scores ( P > .05). Conclusion: The application of dentin pretreatment with proanthocyanidin is a successful procedure that increases the bond strength in both dentin substrate, while pretreatment with lycopene in caries-affected dentin reduces it.
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Affiliation(s)
| | - Alperen Degirmenci
- Department of Restorative Dentistry, Van Yuzuncu Yil University, Van, Turkey
| | - Emine Kara
- Department of Restorative Dentistry, Bursa Oral and Dental Health Care Center, Turkish Health Ministry, Bursa, Turkey
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Tiskaya M, Shahid S, Gillam D, Hill R. The use of bioactive glass (BAG) in dental composites: A critical review. Dent Mater 2021; 37:296-310. [PMID: 33441250 DOI: 10.1016/j.dental.2020.11.015] [Citation(s) in RCA: 40] [Impact Index Per Article: 13.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/05/2020] [Revised: 08/23/2020] [Accepted: 11/21/2020] [Indexed: 12/16/2022]
Abstract
OBJECTIVE In recent years, numerous studies have analyzed the role of bioactive glass (BAG) as remineralizing additives in dental restorative composites. This current review provides a critical analysis of the existing literature, particularly focusing on BAGs prepared via the melt-quench route that form an "apatite-like" phase when immersed in physiological-like solutions. METHODS Online databases (Science Direct, PubMed and Google Scholar) were used to collect data published from 1962 to 2020. The research papers were analyzed and the relevant papers were selected for this review. Sol-gel BAGs were not included in this review since it is not a cost-effective manufacturing technique that can be upscaled and is difficult to incorporate fluoride. RESULTS BAGs release Ca2+, PO43- and F- ions, raise the pH and form apatite. There are numerous published papers on the bioactivity of BAGs, but the different glass compositions, volume fractions, particle sizes, immersion media, time points, and the characterization techniques used, make comparison difficult. Several papers only use certain characterization techniques that do not provide a full picture of the behavior of the glass. It was noted that in most studies, mechanical properties were measured on dry samples, which does not replicate the conditions in the oral environment. Therefore, it is recommended that samples should be immersed for longer time periods in physiological solutions to mimic clinical environments. SIGNIFICANCE BAGs present major benefits in dentistry, especially their capacity to form apatite, which could potentially fill any marginal gaps produced due to polymerization shrinkage.
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Affiliation(s)
- Melissa Tiskaya
- Queen Mary University of London, Barts & The London School of Medicine and Dentistry, Institute of Dentistry, Centre for Oral Bioengineering, Mile End Road, London E1 4NS, UK.
| | - Saroash Shahid
- Queen Mary University of London, Barts & The London School of Medicine and Dentistry, Institute of Dentistry, Centre for Oral Bioengineering, Mile End Road, London E1 4NS, UK
| | - David Gillam
- Queen Mary University of London, Barts & The London School of Medicine and Dentistry, Institute of Dentistry, Centre for Oral Bioengineering, Mile End Road, London E1 4NS, UK
| | - Robert Hill
- Queen Mary University of London, Barts & The London School of Medicine and Dentistry, Institute of Dentistry, Centre for Oral Bioengineering, Mile End Road, London E1 4NS, UK
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de Moraes IQS, do Nascimento TG, da Silva AT, de Lira LMSS, Parolia A, Porto ICCDM. Inhibition of matrix metalloproteinases: a troubleshooting for dentin adhesion. Restor Dent Endod 2020; 45:e31. [PMID: 32839712 PMCID: PMC7431940 DOI: 10.5395/rde.2020.45.e31] [Citation(s) in RCA: 14] [Impact Index Per Article: 3.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/12/2019] [Revised: 02/17/2020] [Accepted: 03/05/2020] [Indexed: 02/07/2023] Open
Abstract
Matrix metalloproteinases (MMPs) are enzymes that can degrade collagen in hybrid layer and reduce the longevity of adhesive restorations. As scientific understanding of the MMPs has advanced, useful strategies focusing on preventing these enzymes' actions by MMP inhibitors have quickly developed in many medical fields. However, in restorative dentistry, it is still not well established. This paper is an overview of the strategies to inhibit MMPs that can achieve a long-lasting material-tooth adhesion. Literature search was performed comprehensively using the electronic databases: PubMed, ScienceDirect and Scopus including articles from May 2007 to December 2019 and the main search terms were “matrix metalloproteinases”, “collagen”, and “dentin” and “hybrid layer”. MMPs typical structure consists of several distinct domains. MMP inhibitors can be divided into 2 main groups: synthetic (synthetic-peptides, non-peptide molecules and compounds, tetracyclines, metallic ions, and others) and natural bioactive inhibitors mainly flavonoids. Selective inhibitors of MMPs promise to be the future for specific targeting of preventing dentin proteolysis. The knowledge about MMPs functionality should be considered to synthesize drugs capable to efficiently and selectively block MMPs chemical routes targeting their inactivation in order to overcome the current limitations of the therapeutic use of MMPs inhibitors, i.e., easy clinical application and long-lasting effect.
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Affiliation(s)
- Izadora Quintela Souza de Moraes
- Laboratory of Pharmaceutical and Food Analysis, Institute of Pharmaceutical Sciences, Federal University of Alagoas, Campus A. C. Simões, Maceió, Alagoas, Brazil
| | - Ticiano Gomes do Nascimento
- Laboratory of Pharmaceutical and Food Analysis, Institute of Pharmaceutical Sciences, Federal University of Alagoas, Campus A. C. Simões, Maceió, Alagoas, Brazil
| | - Antonio Thomás da Silva
- Laboratory of Pharmaceutical and Food Analysis, Institute of Pharmaceutical Sciences, Federal University of Alagoas, Campus A. C. Simões, Maceió, Alagoas, Brazil
| | - Lilian Maria Santos Silva de Lira
- Laboratory of Pharmaceutical and Food Analysis, Institute of Pharmaceutical Sciences, Federal University of Alagoas, Campus A. C. Simões, Maceió, Alagoas, Brazil
| | - Abhishek Parolia
- Division of Clinical Dentistry, School of Dentistry, International Medical University, Kuala Lumpur, Malaysia
| | - Isabel Cristina Celerino de Moraes Porto
- Laboratory of Pharmaceutical and Food Analysis, Institute of Pharmaceutical Sciences, Federal University of Alagoas, Campus A. C. Simões, Maceió, Alagoas, Brazil.,Department of Restorative Dentistry, Faculty of Dentistry, Federal University of Alagoas, Campus A. C. Simões, Maceió, Alagoas, Brazil
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Breschi L, Maravic T, Comba A, Cunha SR, Loguercio AD, Reis A, Hass V, Cadenaro M, Mancuso E, Mayer-Santos E, Niu L, Pashley DH, Tay FR, Mazzoni A. Chlorhexidine preserves the hybrid layer in vitro after 10-years aging. Dent Mater 2020; 36:672-680. [DOI: 10.1016/j.dental.2020.03.009] [Citation(s) in RCA: 15] [Impact Index Per Article: 3.8] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/25/2019] [Revised: 02/19/2020] [Accepted: 03/12/2020] [Indexed: 10/24/2022]
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Miranda MEDSNG, Silva EMD, Oliveira MFD, Simmer FS, Santos GBD, Amaral CM. Resin-dentin bond stability of etch-and-rinse adhesive systems with different concentrations of MMP inhibitor GM1489. J Appl Oral Sci 2020; 28:e20190499. [PMID: 32348441 PMCID: PMC7185984 DOI: 10.1590/1678-7757-2019-0499] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/04/2019] [Accepted: 02/20/2020] [Indexed: 11/22/2022] Open
Abstract
Enzymatic degradation of the hybrid layer can be accelerated by the activation of dentin metalloproteinases (MMP) during the bonding procedure. MMP inhibitors may be used to contain this process. Objective To evaluate the degree of conversion (DC%), dentin bond strength (µTBS) (immediate and after 1 year of storage in water), and nanoleakage of an experimental (EXP) and a commercial (SB) adhesive system, containing different concentrations of the MMP inhibitor GM1489: 0, 1 µM, 5 µM and 10 µM. Methodology DC% was evaluated by FT-IR spectroscopy. Dentin bond strength was evaluated by µTBS test. Half of beams were submitted to the µTBS test after 24 h and the other half, after storage for 1 year. From each tooth and storage time, 2 beams were reserved for nanoleakage testing. Data were analyzed using ANOVA and Tukey's test to compare means (α=0.05). Results All adhesive systems maintained the µTBS after 1 year of storage. Groups with higher concentrations of inhibitor (5 µM and 10 µM) showed higher µTBS values than groups without inhibitor or with 1 µM. The nanoleakage values of all groups showed no increase after 1 year of storage and values were similar for SB and EXP groups, in both storage periods. The inhibitor did not affect the DC% of the EXP groups, but the SB5 and SB10 groups showed higher DC% values than those of SB0 and SB1. Conclusions The incorporation of GM1489 in the adhesive systems had no detrimental effect on DC%. The concentrations of 5 µM GM1489 for SB and 5 µM or 10 µM for EXP provided higher μTBS than groups without GM1489, in the evaluation after 1 year of storage; whereas the concentration of inhibitor did not affect adhesive systems nanoleakage.
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Affiliation(s)
| | - Eduardo Moreira da Silva
- LABIOM-R, Departamento de Odontotécnica, Universidade Federal Fluminense, Niteroi, Rio de Janeiro, Brasil
| | - Mariana Flôres de Oliveira
- LABIOM-R, Departamento de Odontotécnica, Universidade Federal Fluminense, Niteroi, Rio de Janeiro, Brasil
| | - Fabiana Souza Simmer
- LABIOM-R, Departamento de Odontotécnica, Universidade Federal Fluminense, Niteroi, Rio de Janeiro, Brasil
| | - Glauco Botelho Dos Santos
- LABIOM-R, Departamento de Odontotécnica, Universidade Federal Fluminense, Niteroi, Rio de Janeiro, Brasil
| | - Cristiane Mariote Amaral
- LABIOM-R, Departamento de Odontotécnica, Universidade Federal Fluminense, Niteroi, Rio de Janeiro, Brasil
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Bond stability of conventional adhesive system with MMP inhibitors to superficial and deep dentin. J Mech Behav Biomed Mater 2019; 100:103402. [DOI: 10.1016/j.jmbbm.2019.103402] [Citation(s) in RCA: 7] [Impact Index Per Article: 1.4] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/18/2019] [Revised: 08/13/2019] [Accepted: 08/19/2019] [Indexed: 11/22/2022]
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Xie Y, He E, Cao Z, Ou Q, Wang Y. Effect of polyvinylphosphonic acid on resin-dentin bonds and the cytotoxicity of mouse dental papilla cell-23. J Prosthet Dent 2019; 122:492.e1-492.e6. [PMID: 31623837 DOI: 10.1016/j.prosdent.2019.08.011] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/23/2019] [Revised: 08/08/2019] [Accepted: 08/08/2019] [Indexed: 11/29/2022]
Abstract
STATEMENT OF PROBLEM Polyvinylphosphonic acid (PVPA) could be used as a biomimetic remineralization analog and a matrix metalloproteinases (MMPs) inhibitor. However, studies are lacking regarding the performance of PVPA in dental bonding systems for maintaining the durability of the resin-dentin bond. PURPOSE The purpose of this in vitro study was to investigate the effect of PVPA on the durability of resin-dentin bonds and the viability of mouse dental papilla cell-23 (MDPC-23). The mechanical properties of resin-dentin interfaces during long-term storage were analyzed, and the potential application of PVPA as a biomimetic remineralization analog in adhesive dentistry was evaluated. MATERIAL AND METHODS Seventy-five extracted noncarious human third molars were collected and randomly divided into 5 groups, and then the microtensile bond strength (μTBS) data and scanning electron microscope (SEM) images were used to evaluate the preservation condition of resin-dentin bonds after 1 day, 6 months, and 1 year of storage. The cytotoxicity of PVPA was detected by cell proliferation assay and cell apoptosis assay. RESULTS Compared with the control and chlorhexidine (CHX) groups, the combined group (treated with both 200-μg/mL PVPA and biomimetic remineralization) had excellent bond durability. The exposed collagen fibril from the PVPA-treated groups (included 200-μg/mL and 500-μg/mL PVPA groups and a combined group) still showed integrity after 1 year of storage when compared with the control group. PVPA up to 500 μg/mL showed no cytotoxicity to MDPC-23 and did not inhibit cell growth. CONCLUSIONS This study offered evidence that PVPA did not result in cytotoxicity at low concentrations as an MMP inhibitor and a biomimetic remineralization analog. In addition, the application of PVPA improved bond strength and preserved collagen integrity after 1 year of in vitro storage.
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Affiliation(s)
- Yunyi Xie
- Graduate student, Guanghua School of Stomatology, Hospital of Stomatology, Sun Yat-sen University, Guangdong Provincial Key Laboratory of Stomatology, Guangzhou, PR China
| | - Enbao He
- Resident Physician, Department of Stomatology, Guangzhou First People's Hospital, Guangzhou, PR China
| | - Zeyuan Cao
- Graduate student, Guanghua School of Stomatology, Hospital of Stomatology, Sun Yat-sen University, Guangdong Provincial Key Laboratory of Stomatology, Guangzhou, PR China
| | - Qianmin Ou
- Graduate student, Guanghua School of Stomatology, Hospital of Stomatology, Sun Yat-sen University, Guangdong Provincial Key Laboratory of Stomatology, Guangzhou, PR China
| | - Yan Wang
- Professor, Oral Biology and Medicine, Guanghua School of Stomatology, Hospital of Stomatology, Sun Yat-sen University, Guangdong Provincial Key Laboratory of Stomatology, Guangzhou, PR China.
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Maravić T, Comba A, Cunha SR, Angeloni V, Cadenaro M, Visinitini E, Navarra CO, Salgarello S, Breschi L, Mazzoni A. Long-term bond strength and endogenous enzymatic activity of a chlorhexidine-containing commercially available adhesive. J Dent 2019; 84:60-66. [DOI: 10.1016/j.jdent.2019.03.004] [Citation(s) in RCA: 26] [Impact Index Per Article: 5.2] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/19/2018] [Revised: 03/05/2019] [Accepted: 03/07/2019] [Indexed: 11/26/2022] Open
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Feitosa SA, Palasuk J, Geraldeli S, Windsor LJ, Bottino MC. Physicochemical and biological properties of novel chlorhexidine-loaded nanotube-modified dentin adhesive. J Biomed Mater Res B Appl Biomater 2019; 107:868-875. [PMID: 30199597 PMCID: PMC6408277 DOI: 10.1002/jbm.b.34183] [Citation(s) in RCA: 12] [Impact Index Per Article: 2.4] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/25/2017] [Revised: 05/21/2018] [Accepted: 05/28/2018] [Indexed: 11/09/2022]
Abstract
A commercially available three-step (etch-and-rinse) adhesive was modified by adding chlorhexidine (CHX)-loaded nanotubes (Halloysite®, HNT) at two concentrations (CHX10% and CHX20%). The experimental groups were: SBMP (unmodified adhesive, control), HNT (SBMP modified with HNT), CHX10 (SBMP modified with HNT loaded with CHX10%), and CHX20 (SBMP modified with HNT loaded with CHX20%). Changes in the degree of conversion (DC%), Knoop hardness (KHN), water sorption (WS), solubility (SL), antimicrobial activity, cytotoxicity, and anti-matrix metalloproteinase [MMP-1] activity (collagenase-I) were evaluated. In regards to DC%, two-way ANOVA followed by Tukey's post-hoc test revealed that only the factor "adhesive" was statistically significant (p < 0.05). No significant differences were detected in DC% when 20 s light-curing was used (p > 0.05). For Knoop microhardness, one-way ANOVA followed by the Tukey's test showed statistically significant differences when comparing HNT (20.82 ± 1.65) and CHX20% (21.71 ± 2.83) with the SBMP and CHX10% groups. All adhesives presented similar WS and cytocompatibility. The CHX-loaded nanotube-modified adhesive released enough CHX to inhibit the growth of S. mutans and L. casei. Adhesive eluates were not able to effectively inhibit MMP-1 activity. The evaluation of higher CHX concentrations might be necessary to provide an effective and predictable MMP inhibition. © 2018 Wiley Periodicals, Inc. J Biomed Mater Res B Part B, 2018. © 2018 Wiley Periodicals, Inc. J Biomed Mater Res Part B: Appl Biomater 107B: 868-875, 2019.
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Affiliation(s)
- Sabrina A. Feitosa
- Department of Biomedical and Applied Sciences, Indiana University School of Dentistry, Indianapolis, IN, 46202, USA
| | - Jadesada Palasuk
- Department of Restorative Dentistry, Faculty of Dentistry, Naresuan University, Phitsanulok, 65000, Thailand
| | - Saulo Geraldeli
- Restorative Dental Sciences, Operative Division, College of Dentistry, University of Florida, Gainesville, FL, 32610, USA
| | - L. Jack Windsor
- Department of Biomedical and Applied Sciences, Indiana University School of Dentistry, Indianapolis, IN, 46202, USA
| | - Marco C. Bottino
- Department of Cariology, Restorative Sciences, and Endodontics, University of Michigan School of Dentistry, Ann Arbor, MI, 48109, USA
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Inhibition of secondary caries in vitro by addition of chlorhexidine to adhesive components. Dent Mater 2019; 35:422-433. [DOI: 10.1016/j.dental.2018.12.002] [Citation(s) in RCA: 14] [Impact Index Per Article: 2.8] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/06/2018] [Revised: 12/17/2018] [Accepted: 12/18/2018] [Indexed: 02/01/2023]
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Fialho MPN, Hass V, Nogueira RP, França FMG, Turssi CP, Basting RT, Amaral FLB. Effect of epigallocatechin-3- gallate solutions on bond durability at the adhesive interface in caries-affected dentin. J Mech Behav Biomed Mater 2019; 91:398-405. [PMID: 30669058 DOI: 10.1016/j.jmbbm.2018.11.022] [Citation(s) in RCA: 12] [Impact Index Per Article: 2.4] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/12/2018] [Accepted: 11/20/2018] [Indexed: 11/26/2022]
Abstract
Hydrolytic and enzymatic degradation by matrix metalloproteinases (MMPs) reduces the durability of composite resin restorations on caries-affected dentin (CAD). The use of MMP inhibitors such as epigallocatechin-3-gallate (EGCG) could increase the longevity of the bond to dentin. This study aimed to evaluate the use of EGCG at different aqueous concentrations on the resin-dentin microtensile bond strength (μTBS), fracture pattern and nanoleakage (NL) in immediate (IM) time interval and after 12-months of water storage (1Y) when using a two-step etch-and-rinse adhesive system on CAD. Dentin surfaces of 40 human molars were submitted to a microbiological caries induction protocol and randomized into 5 groups (n = 8) (0.02% EGCG; 0.2% EGCG; 0.5% EGCG; 2% Chlorhexidine [CHX] and no treatment as Control Group - [NT]). After acid etching, the solutions were applied for 60 s followed by application of dental adhesive (Adper Single Bond 2, 3 M ESPE) to CAD surfaces. Subsequently, a resin composite (4 mm) block was built on the dentin. After 24 h, the teeth were sectioned into beam-shaped specimens (cross-sectional area of 1 mm2 and 8-mm high). Half of the specimens were tested in IM and the other half after 1Y. Two samples per tooth were submitted to SEM for NL evaluation. Data were statistically analyzed by two-way ANOVA and Tukey tests (α = 0.05). The results showed that use of EGCG and CHX did not affect μTBS in IM (p > 0.05). After 1Y, there was a reduction in μTBS for all experimental groups (p < 0.05). Adhesive fractures predominated in IM in all groups, except for 0.05% EGCG and NT. After 1Y, there was an increase in these adhesive fractures in all groups. For NL, all agents applied reduced NL in comparison with CT (p < 0.001). CHX showed lower NL (p < 0.001), followed by 0.02% and 0.5% EGCG. NT showed highest NL for both time intervals (p < 0.001). Thus, although the use of EGCG at different concentrations and CHX reduced the NL, they were unable to reduce degradation of μTBS to CAD over time.
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Cadenaro M, Maravic T, Comba A, Mazzoni A, Fanfoni L, Hilton T, Ferracane J, Breschi L. The role of polymerization in adhesive dentistry. Dent Mater 2019; 35:e1-e22. [DOI: 10.1016/j.dental.2018.11.012] [Citation(s) in RCA: 65] [Impact Index Per Article: 13.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/05/2018] [Revised: 11/12/2018] [Accepted: 11/13/2018] [Indexed: 10/27/2022]
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Olak J, Nguyen MS, Nguyen TT, Nguyen BBT, Saag M. The influence of mothers' oral health behaviour and perception thereof on the dental health of their children. EPMA J 2018; 9:187-193. [PMID: 29896317 DOI: 10.1007/s13167-018-0134-x] [Citation(s) in RCA: 10] [Impact Index Per Article: 1.7] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/30/2018] [Accepted: 04/05/2018] [Indexed: 02/06/2023]
Abstract
Objective The study aims to investigate how mothers' oral health behaviour and perception thereof influence the dental health in their children. Methods A total of 556 Vietnamese mother-child pairs participated in the current study. Mothers self-reported their oral status and oral health behaviour and perception. Dental caries of the children were examined using the index of decayed, missing, and filled teeth. The Dental Anxiety Scale instrument was used to assess the dental anxiety level in mothers and children. Results Among mothers, 41.3% had gingival bleeding, 40% perceived their dentition and gingival status to be at a good level, 68% brushed their teeth more than twice a day, and 17% had never visited a dentist. Mothers' oral health behaviour and their perception thereof were positively correlated with their frequency of dental visits (r = (0.105-0.221), p < 0.001) and negatively correlated with dental anxiety (r = (- 0.149- - 0.105), p < 0.05).Caries-free children were positively correlated with mothers having more than 20 teeth (r = 0.085, p < 0.05). Positive correlations between mothers and children were found in terms of frequency of fresh fruits consumption (r = 0.090, p < 0.05), drinking sweet beverages (r = 0.072, p < 0.05), and dental anxiety (r = 0.183, p < 0.001). Conclusions Maternal oral health was significantly associated with dental health of their children. Not only did maternal dental anxiety influence oral health of mothers but it was also a concomitant factor in the development of children's dental anxiety. The education programme on mothers' oral health-related knowledge can be a target for improvement of the oral health of mothers and children.
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Affiliation(s)
- Jana Olak
- 1Institute of Dentistry, University of Tartu, Raekoja plats 6, 51003 Tartu, Estonia
| | - Minh Son Nguyen
- 1Institute of Dentistry, University of Tartu, Raekoja plats 6, 51003 Tartu, Estonia
- 2Danang University of Medical Technology and Pharmacy, 99 Hung Vuong, Danang, Vietnam
| | - Thuy Trang Nguyen
- 2Danang University of Medical Technology and Pharmacy, 99 Hung Vuong, Danang, Vietnam
| | - Bui Bao Tien Nguyen
- 2Danang University of Medical Technology and Pharmacy, 99 Hung Vuong, Danang, Vietnam
| | - Mare Saag
- 1Institute of Dentistry, University of Tartu, Raekoja plats 6, 51003 Tartu, Estonia
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Breschi L, Maravic T, Cunha SR, Comba A, Cadenaro M, Tjäderhane L, Pashley DH, Tay FR, Mazzoni A. Dentin bonding systems: From dentin collagen structure to bond preservation and clinical applications. Dent Mater 2018; 34:78-96. [DOI: 10.1016/j.dental.2017.11.005] [Citation(s) in RCA: 154] [Impact Index Per Article: 25.7] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/25/2017] [Accepted: 11/10/2017] [Indexed: 12/18/2022]
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ZnCl 2 Incorporated into Experimental Adhesives: Selected Physicochemical Properties and Resin-Dentin Bonding Stability. BIOMED RESEARCH INTERNATIONAL 2017; 2017:5940479. [PMID: 29270433 PMCID: PMC5706081 DOI: 10.1155/2017/5940479] [Citation(s) in RCA: 9] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Received: 06/22/2017] [Revised: 08/17/2017] [Accepted: 08/30/2017] [Indexed: 02/03/2023]
Abstract
The aim of this study was to evaluate the degree of conversion (DC%), water sorption (WS), solubility (SO), and resin-dentin bonding stability of experimental adhesive systems containing ZnCl2. Different concentrations (wt.%) of ZnCl2 were added to a model etch-and-rinse adhesive system consisting of BISGMA, HEMA, UDMA, GDMA, water, and ethanol: Zn0 (0%-control group); Zn2 (2%); Zn3.5 (3.5%); and Zn5 (5%). Adper Single Bond 2 (SB) was used as commercial reference. The samples were light cured for 20s using a quartz-tungsten-halogen unit (650 mW/cm2). DC% (n = 5) was measured using FT-IR spectroscopy, and WS and SO (n = 5) were calculated based on ISO4049. Microtensile bond strength (μTBS) and nanoleakage (NL) were measured after 24 h and 12 months of water storage (n = 10). Data were analyzed using ANOVA and Tukey's HSD test (5%). Zn5 presented the lowest DC% and the highest WS and SO (p < 0.05). Zn0 and Zn2 presented statistically similar DC%, WS, SO, and immediate μTBS. All adhesives containing ZnCl2 maintained a μTBS stability after 12 months, but only Zn2 and Zn3.5 did not suffer an increase in NL. SB presented the highest immediate μTBS but the greatest reduction after 12 months (p < 0.05). The addition of 2 wt.% of ZnCl2 in adhesive formulations seems to be a promising way to improve the resin-dentin bonding stability. Higher concentrations than 2 wt.% could impair some physicochemical properties.
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