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Jamal H, Yaghmoor R, Abed H, Young A, Ashley P. Impact of Dentine Pretreatment with Matrix Metalloproteinase Inhibitors on Bond Strength of Coronal Composite Restorations: A Systematic Review and Meta-analysis of In Vitro Studies. Eur J Dent 2023; 17:974-999. [PMID: 36400108 PMCID: PMC10756735 DOI: 10.1055/s-0042-1757582] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/21/2022] Open
Abstract
Matrix metalloproteinase (MMP) enzymes participate in collagen matrix degradation, including in dentine, potentially compromising bond strength. Therefore, MMP inhibitors have been hypothesized to improve restoration bond strength and stability. This systematic review aimed to evaluate the influence of different MMP inhibitors applied as dentine surface pretreatments on the immediate (24 hours) and longer term (months) bond strength of direct coronal composite restorations. This systematic literature review followed the Preferred Reporting Items for Systematic Review and Meta-analyses (PRISMA) statement. A systematic literature search of three databases (Ovid MEDLINE, Ovid Embase, and Google Scholar) was conducted independently by two reviewers from inception to April 2022. An adapted quality assessment tool was independently applied by two reviewers for risk of bias assessment. RevMan v5.4 software was used for meta-analyses. A randomeffectsmodel was used to generatemean differences with 95% confidence intervals for treatment and control comparisons. The Q-test and I2-test were used to test for heterogeneity. The proportion of total variance across studies attributable to heterogeneity rather than chance was calculated. Overall effects were tested using the Z-test, while subgroup differences were tested using Chi-squared tests. Of 934 studies, 64 studies were included in the systematic review and 42 in the meta-analysis. Thirty-one MMP inhibitors were reported, three of which were included in the meta-analysis: 2% chlorhexidine (CHX), 0.3M carbodiimide (EDC), and 0.1% riboflavin (RIBO). Pretreatment with 2% CHX for 30 and 60 seconds did not significantly improve bond strength compared with controls either immediately or after long-termageing. However, pretreatment with 0.3MEDC and 0.1% RIBO (but not CHX) significantly improved bond strength compared with control groups both immediately and over time. Most studies showed a medium risk of bias. These in vitro findings pave the way for rationale clinical trialing of dentine surface pretreatment with MMP inhibitors to improve clinical outcomes.
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Affiliation(s)
- Hasan Jamal
- Paediatric Dentistry Department, Eastman Dental Institute, University College London, London, United Kingdom
- Department of Biomaterials and Tissue Engineering, Royal Free Hospital, UCL Eastman Dental Institute, London, United Kingdom
| | - Rayan Yaghmoor
- Department of Biomaterials and Tissue Engineering, Royal Free Hospital, UCL Eastman Dental Institute, London, United Kingdom
- Department of Microbial Diseases, UCL Eastman Dental Institute, Royal Free Hospital, London, United Kingdom
- Department of Restorative Dentistry, Faculty of Dentistry, Umm Al-Qura University, Makkah, Saudi Arabia
| | - Hassan Abed
- Department of Basic and Clinical Oral Sciences, Faculty of Dentistry, Umm Al-Qura University, Makkah, Saudi Arabia
| | - Anne Young
- Department of Biomaterials and Tissue Engineering, Royal Free Hospital, UCL Eastman Dental Institute, London, United Kingdom
| | - Paul Ashley
- Paediatric Dentistry Department, Eastman Dental Institute, University College London, London, United Kingdom
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Ozdemir ZM, Surmelioglu DG. Comparative evaluation of effect of chlorhexidine application on dentin bond strength with two different adhesives after ER, CR: YSGG phototherapy: an in vitro study. Lasers Med Sci 2023; 38:224. [PMID: 37773548 DOI: 10.1007/s10103-023-03878-z] [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: 10/17/2022] [Accepted: 09/08/2023] [Indexed: 10/01/2023]
Abstract
This study aimed to assess the efficacy of phototherapy with an Er, Cr:YSGG laser on the bond strength of dentin using two different adhesive systems after chlorhexidine (CHX) application. Twenty-four non-carious human molar teeth were separated into three main groups: negative control Group A (Group A), CHX and phototherapy with an Er, Cr:YSGG laser (Group PC), and CHX with conventional diamond bur (no phototherapy) (Group C). These groups were divided into two subgroups based on adhesives: Clearfil Universal Quick Bond and Clearfil SE Bond. To evaluate the microtensile bond strength, the occlusal enamel surfaces of the teeth were removed with a low-speed, water-cooled diamond bur to expose hard dentin tissue. The teeth within Group PC were treated with Er, Cr:YSGG phototherapy. The surfaces were then disinfected with 0.2% chlorhexidine gluconate. Subgroups were applied according to the manufacturer's instructions using the adhesive systems mentioned above. Following adhesive application, the teeth were restored with composite resin. A microtensile bond strength test was performed on the test sticks obtained from the teeth using a universal test device. Data were analyzed using variance analysis (ANOVA) at a significance level of p < 0.05. Among all groups, the highest bond strength was achieved with Clearfil SE Bond with CHX + phototherapy (45.6 ± 4.2), while the lowest was achieved with Clearfil Universal Quick Bond without phototherapy (control group) (27.0 ± 6.7) (p < 0.05). Phototherapy with Er, Cr: YSGG following chlorhexidine application enhanced the bond strength of both the bond systems (p < 0.05).
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Affiliation(s)
- Zeyneb Merve Ozdemir
- Department of Restorative Dentistry, Faculty of Dentistry, Kahramanmaras Sutcu Imam University, Onikisubat, Kahramanmaras, Turkey
| | - Derya Gursel Surmelioglu
- Department of Restorative Dentistry, Faculty of Dentistry, Gaziantep University, University Boulevard, Sehitkamil, Gaziantep, 27310, Turkey.
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Moradian M, Saadat M, Sohrabniya F, Afifian M. The comparative evaluation of the effects of quercetin, α-tocopherol, and chlorhexidine dentin pretreatments on the durability of universal adhesives. Clin Exp Dent Res 2022; 8:1638-1644. [PMID: 36189633 PMCID: PMC9760145 DOI: 10.1002/cre2.667] [Citation(s) in RCA: 2] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/09/2022] [Revised: 09/09/2022] [Accepted: 09/14/2022] [Indexed: 11/07/2022] Open
Abstract
OBJECTIVE The aim of this study was to evaluate and compare the effects of chlorhexidine, quercetin, and α-tocopherol on the shear bond strength of universal adhesives in the short (24h) and long term (6 months). MATERIAL AND METHODS Ninety-six extracted sound molars were collected and divided randomly into four groups: control (no treatment), 2% chlorhexidine, 10% α-tocopherol, and 1% quercetin. The solutions were prepared and applied to the teeth for 60 s, followed by application of All-Bond universal adhesive and composite build-up. Half of the specimens in each group (n = 12) were tested for shear bond strength (SBS) after 24 h of storage and the other half were kept in distilled water for 6 months and then tested for shear bond strength. The shear bond strength test was performed and the failure modes were determined using a stereomicroscope. The data were analyzed using two-way analysis of variance and Tukey's post hoc tests with p ˂ .05 as the significance level. RESULTS The results of the two-way analysis of variance test showed that there was no significant difference in immediate SBS, and after 6 months, α-tocopherol had the lowest SBS in comparison to the control and CHX subgroups (p < .05). The t-test showed that the shear bond strength in the α-tocopherol and quercetin groups was significantly decreased after 6 months. CONCLUSION It can be concluded that the solutions used in this study had no adverse effect on immediate SBS. After 6 months, the CHX could preserve SBS in comparison to other groups.
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Affiliation(s)
- Marzieh Moradian
- Department of Operative Dentistry, School of DentistryOral and Dental Disease Research Center, Shiraz University of Medical SciencesShirazIran
| | - Maryam Saadat
- Department of Operative Dentistry, School of DentistryOral and Dental Disease Research Center, Shiraz University of Medical SciencesShirazIran
| | - Fatemeh Sohrabniya
- Student Research CommitteeShiraz University of Medical SciencesShirazIran
| | - Mohammad Afifian
- Student Research CommitteeShiraz University of Medical SciencesShirazIran
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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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Bonding interface and dentin enzymatic activity of two universal adhesives applied following different etching approaches. Dent Mater 2022; 38:907-923. [DOI: 10.1016/j.dental.2022.03.001] [Citation(s) in RCA: 2] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/09/2021] [Revised: 03/01/2022] [Accepted: 03/02/2022] [Indexed: 11/18/2022]
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Venâncio GN, Bridi EC, Teixeira LN, Basting RT, Sousa IMDO, França FMG, do Amaral FLB, Turssi CP, Basting RT. Phenolic extract of Libidibia ferrea inhibits dentin endogenous enzymatic activity depending on the adhesive system strategy. Microsc Res Tech 2021; 85:270-282. [PMID: 34386997 DOI: 10.1002/jemt.23902] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/15/2021] [Revised: 06/23/2021] [Accepted: 07/29/2021] [Indexed: 11/11/2022]
Abstract
This study evaluated the influence of Libidibia ferrea (Lf) extract used as dentin pretreatment on the resin-dentin bond strength stability and dentin endogenous enzymatic activity. The phytochemical profile (PP) of the Lf extract was evaluated by liquid chromatography; particle size, polydispersity index (PdI), and zeta potential (ZP) were evaluated by dynamic light scattering. The tested groups were ER-Scotchbond Universal (SBU) in the etch-and-rinse (ER) mode; ERLf-SBU in the ER mode + Lf after etching; SE- SBU in the self-etch (SE) mode; and LfSE-Lf before SBU in the SE mode. Sticks were obtained for microtensile bond strength tests and failure mode (24 hr and 12 months). The hybrid layer was evaluated using scanning electron microscopy. The endogenous enzymatic activity of the underlying dentin was analyzed by in situ zymography with the same treatments. The PP showed the presence of quercetin (2.6% w/w). Lf particles were considered large after the analysis of the PdI. The ZP remained stable over time. The ER and ERLf groups had lower bond strength after 12 months, but SE and LfSE remained stable. The predominant failure mode was adhesive for both times. ER and ERLf had longer resin tags and a thicker hybrid layer. The ER and LfSE groups showed higher enzymatic activity than the ERLf and SE groups after 12 months. The Lf extract may contribute to inhibit the dentin endogenous enzymatic activity when associated with an adhesive system in the ER mode.
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Affiliation(s)
- Gisely Naura Venâncio
- Faculdade São Leopoldo Mandic, Restorative Dentistry and Dental Materials Division, Campinas, SP, Brazil
| | - Enrico Coser Bridi
- Faculdade São Leopoldo Mandic, Restorative Dentistry and Dental Materials Division, Campinas, SP, Brazil
| | - Lucas Novaes Teixeira
- Faculdade São Leopoldo Mandic, Cell Biology and Oral Pathology Division, Campinas, SP, Brazil
| | - Rosanna Tarkany Basting
- Faculdade São Leopoldo Mandic, Laboratory of Neuroimmune Interface of Pain Research, Campinas, SP, Brazil
| | | | | | | | - Cecilia Pedroso Turssi
- Faculdade São Leopoldo Mandic, Restorative Dentistry and Dental Materials Division, Campinas, SP, Brazil
| | - Roberta Tarkany Basting
- Faculdade São Leopoldo Mandic, Restorative Dentistry and Dental Materials Division, Campinas, SP, Brazil
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Ahmet BSO, Seseogullari-Dirihan R, Tezvergil-Mutluay A. Activation of matrix-bound endogenous proteases by self-etch adhesives. Dent Mater J 2020; 39:1044-1049. [PMID: 33028790 DOI: 10.4012/dmj.2019-304] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/23/2022]
Abstract
The study evaluated changes in total enzymatic activity and degradation of demineralized dentin following the application of universal or self-etch adhesives. The universal adhesives -Scotchbond Universal (SU) and All-Bond Universal (ABU) and self-etch adhesives -Adper Easy Bond (EB) and G-aenial Bond (GB) were used for 2 min pretreatment of the dentin beams. Phosphoric acid (PA) treatment as well as no treatment served as controls. Total enzymatic activity was analyzed before and after treatment, collagen degradation was assessed using mass loss, C-terminal telopeptide (CTX) and C-terminal-telopeptide of type I collagen (ICTP) release (24 h, 3-day, 3-week). Over three weeks of incubation, ICTP release of ABU treated beams was significantly higher than other groups (p<0.05), except for SU treated beams (p>0.05) and CTX release of GB treated beams was the highest among the groups with statistically significant difference (p<0.05). The results confirm that the universal adhesives tested have also potential to increase the enzymatic activity in dentin.
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Affiliation(s)
| | - Roda Seseogullari-Dirihan
- Department of Restorative Dentistry and Cariology, Adhesive Dentistry Research Group, Institute of Dentistry, University of Turku
| | - Arzu Tezvergil-Mutluay
- Department of Restorative Dentistry and Cariology, Adhesive Dentistry Research Group, Institute of Dentistry, University of Turku.,Turku University Hospital, TYKS, University of Turku
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Tuncer S, Tekçe N, Demirci M, Kara Tuncer A, Baydemir C. Does Q-MIX pretreatment improve the dentin bond durability of a two-step self-etch adhesive? Microsc Res Tech 2020; 84:804-813. [PMID: 33179843 DOI: 10.1002/jemt.23640] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/17/2020] [Revised: 09/16/2020] [Accepted: 10/25/2020] [Indexed: 11/06/2022]
Abstract
This study aims to analyze and assess the effects of three particular dentin pretreatment solutions on the bond durability of a two-step self-etch adhesive (Optibond XTR) applied to dentin after ageing for 2 years. Thirty-five third molars which were extracted (n = 5 for μTBS, n = 2 for nanoleakage) were divided into five groups: Group 1:Control (no pretreatment), Group 2:17% EDTA, Group 3:2% CHX, Group 4:17% EDTA plus 2% CHX, Group 5: Q-Mix. After the pretreatments of dentin, the dentin adhesive was applied as per the guidelines provided by the manufacturer. Half of the specimens were subjected to μTBS tests for 24 hr, while the remaining half were subjected to the tests after being kept for 2 years in water storage. Also, nanoleakage was evaluated with FE-SEM by examining silver nitrate deposits. The data obtained were evaluated using a two-way analysis of variance and Tukey Post Hoc test. The dentin pretreatments did not affect the 24 hr and 2 years μTBS values for OptiBond XTR. At 24 hr, the EDTA + CHX group (50.3 ± 4.9) showed that the highest μTBS value was obtained. Water ageing significantly reduced the μTBS results and after 2 years the highest μTBS value was obtained from the Q-Mix group (37.7 ± 5.2). Different dentin pretreatments do not alter the 24-hr μTBS and were not able to preserve the bond strength after 2 years of ageing. Q-Mix was able to slow down the regression in the strength of the dentin bond as well as nanoleakage over time.
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Affiliation(s)
- Safa Tuncer
- Faculty of Dentistry, Department of Restorative Dentistry, Istanbul University, Istanbul, Turkey
| | - Neslihan Tekçe
- Faculty of Dentistry, Department of Restorative Dentistry, Kocaeli University, Kocaeli, Turkey
| | - Mustafa Demirci
- Faculty of Dentistry, Department of Restorative Dentistry, Istanbul University, Istanbul, Turkey
| | | | - Canan Baydemir
- Faculty of Medicine, Department of Biostatistics and Medical Informatics, Kocaeli University, Kocaeli, Turkey
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Xu J, Li M, Wang W, Wu Z, Wang C, Jin X, Zhang L, Jiang W, Fu B. A novel prime-&-rinse mode using MDP and MMPs inhibitors improves the dentin bond durability of self-etch adhesive. J Mech Behav Biomed Mater 2020; 104:103698. [DOI: 10.1016/j.jmbbm.2020.103698] [Citation(s) in RCA: 5] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/25/2019] [Revised: 02/11/2020] [Accepted: 02/12/2020] [Indexed: 12/11/2022]
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Kang J, Izutani N, D'Angelo M, Buis W, Wang Y, Blatz M, Imazato S, Ozer F. Assaying endogenous matrix metalloproteinases (MMPs) in acid-etched dentinal cavity walls. Dent Mater J 2019; 38:934-939. [PMID: 31511475 DOI: 10.4012/dmj.2018-342] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.2] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/23/2022]
Abstract
Endogenous dentinal matrix metalloproteinases (MMPs) have been implicated in the auto-degradation of collagen fibrils within resin infiltrated layers of dentinal attachment. In order to target these proteinases, we must know which MMPs are produced and activated at the resin/dentin interface. In this study, we have optimized an extraction procedure and quantitated levels of endogenous MMPs in samples of dentin removed from the cavity walls of a single, extracted tooth. In our tooth-cavity model, an occlusal cavity (2×4×2 mm) was prepared and removed from the tooth crown, leaving surrounding dentinal walls of 1-mm-thick. The samples were pulverized with an analytic mill. Using enzyme-linked immunosorbent assay (ELISA), an average of 34.7 picograms of MMP-9 was detected in less than 300 mg of dentinal powder. This is the first study of its kind to quantitate endogenous levels of MMP in dentinal protein isolated from the cavity walls of a single, extracted tooth.
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Affiliation(s)
- Justin Kang
- Department of Preventive and Restorative Sciences, School of Dental Medicine, University of Pennsylvania
| | - Naomi Izutani
- Department of Restorative and Endodontology, Osaka University Graduate School of Dentistry
| | - Marina D'Angelo
- Department of Bio-Medical Sciences, Philadelphia College of Osteopathic Medicine
| | - William Buis
- Department of Bio-Medical Sciences, Philadelphia College of Osteopathic Medicine
| | - Yu Wang
- Department of Periodontics, School of Dental Medicine, University of Pennsylvania
| | - Markus Blatz
- Department of Preventive and Restorative Sciences, School of Dental Medicine, University of Pennsylvania
| | - Satoshi Imazato
- Department of Biomaterials Science, Osaka University Graduate School of Dentistry
| | - Fusun Ozer
- Department of Preventive and Restorative Sciences, School of Dental Medicine, University of Pennsylvania
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Bridi EC, Leme-Kraus AA, Basting RT, Bedran-Russo AK. Long-term nanomechanical properties and gelatinolytic activity of titanium tetrafluoride-treated adhesive dentin interface. Dent Mater 2019; 35:1471-1478. [DOI: 10.1016/j.dental.2019.07.016] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.6] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/16/2019] [Revised: 05/30/2019] [Accepted: 07/15/2019] [Indexed: 12/19/2022]
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Mazzoni A, Maravić T, Tezvergil-Mutluay A, Tjäderhane L, Scaffa PMC, Seseogullari-Dirihan R, Bavelloni A, Gobbi P, Pashley DH, Tay FR, Breschi L. Biochemical and immunohistochemical identification of MMP-7 in human dentin. J Dent 2018; 79:90-95. [PMID: 30367893 DOI: 10.1016/j.jdent.2018.10.008] [Citation(s) in RCA: 6] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/04/2018] [Revised: 09/23/2018] [Accepted: 10/22/2018] [Indexed: 12/16/2022] Open
Abstract
OBJECTIVES Matrix metalloproteinases (MMPs) are dentinal endogenous enzymes claimed to have a vital role in dentin organic matrix breakdown. The aim of the study was to investigate presence, localization and distribution of MMP-7 in sound human dentin. METHODS Dentin was powdered, demineralized and dissolved in isoelectric focusing buffer. Resolved proteins were transferred to nitrocellulose membranes for western blotting (WB) analyses. For the zymographic analysis, aliquots of dentin protein were electrophoresed in 12% sodium dodecyl sulfate-polyacrylamide gel electrophoresis containing fluorescently labeled gelatin. Further, the concentrations of dentinal MMPs were measured using Fluorescent Microsphere Immunoassay with a human MMP-MAP multiplex kit. Pre- and post-embedding immunolabeling technique was used to investigate the localization and distribution of MMP-7 in dentin. Dentin was cryo-fractured, the fragments partially decalcified and labeled with a primary monoclonal anti-MMP-7 and a secondary antibody conjugated with gold nanoparticles. MMP-7 labelings were identified in the demineralized dentin matrix as highly electron-dense dispersed gold particles. RESULTS WB and zymographic analysis of extracted dentin proteins showed presence of MMP-7 (∼20-28 KDa). Further, MMP-7 was found in the supernatants of the incubated dentin beams using Fluorescent Microsphere Immunoassay. FEI-SEM and TEM analyses established MMP-7 as an intrinsic constituent of the human dentin organic matrix. CONCLUSION This study demonstrated that MMP-7 is an endogenous component of the human dentin fibrillar network. CLINICAL SIGNIFICANCE It is pivotal to understand the underlying processes behind dentin matrix remodeling and degradation in order to develop the most optimal clinical protocols and ensure the longevity of dental restorations.
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Affiliation(s)
- Annalisa Mazzoni
- Department of Biomedical and Neuromotor Sciences, DIBINEM, University of Bologna-Alma Mater Studiorum, Via San Vitale 59, Bologna, Italy.
| | - Tatjana Maravić
- Department of Biomedical and Neuromotor Sciences, DIBINEM, University of Bologna-Alma Mater Studiorum, Via San Vitale 59, Bologna, Italy.
| | - Arzu Tezvergil-Mutluay
- Department of Restorative Dentistry and Cariology, Adhesive Dentistry Research Group Institute of Dentistry, University of Turku, FI-20014 Turun Yliopisto, Turku Finland; Turku University Hospital, Kiinamyllynkatu 4-8 Turku, Finland.
| | - Leo Tjäderhane
- Department of Oral and Maxillofacial Diseases, University of Helsinki, Helsinki University Hospital, Mannerheimintie 172, 00014 Helsinki, Finland; Research Unit of Oral Health Sciences, Medical Research Center Oulu (MRC Oulu), Oulu University Hospital and University of Oulu, Pentti Kaiteran katu 1, Linnanmaa, Oulu, Finland.
| | | | - Roda Seseogullari-Dirihan
- Department of Restorative Dentistry and Cariology, Adhesive Dentistry Research Group Institute of Dentistry, University of Turku, FI-20014 Turun Yliopisto, Turku Finland; Turku University Hospital, Kiinamyllynkatu 4-8 Turku, Finland.
| | - Alberto Bavelloni
- Laboratory of Musculoskeletal Cell Biology, Rizzoli Orthopedic Institute, Via di Barbiano, 1/10, 40136 Bologna, Italy.
| | - Pietro Gobbi
- Department of Biomolecular Sciences, University of Urbino Carlo Bo, Via Aurelio Saffi 2, Urbino, Italy.
| | - David H Pashley
- The Dental College of Georgia, Augusta University, 1430 John Wesley Gilbert Drive, Augusta, Georgia, USA.
| | - Franklin R Tay
- The Dental College of Georgia, Augusta University, 1430 John Wesley Gilbert Drive, Augusta, Georgia, USA.
| | - Lorenzo Breschi
- Department of Biomedical and Neuromotor Sciences, DIBINEM, University of Bologna-Alma Mater Studiorum, Via San Vitale 59, Bologna, Italy.
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How proteolytic inhibitors interact with dentin on glass-fiber post luting over 6 months. J Mech Behav Biomed Mater 2018; 79:348-353. [DOI: 10.1016/j.jmbbm.2018.01.011] [Citation(s) in RCA: 7] [Impact Index Per Article: 1.2] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/03/2018] [Accepted: 01/09/2018] [Indexed: 12/11/2022]
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