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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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2
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Takahashi S, Zhou J, Wurihan, Shimomura N, Kataoka Y, Watanabe C, Shibata Y, Funatsu T, Gao P, Miyazaki T. High-resolution mechanical mapping of the adhesive-dentin interface: The effect of co-monomers in 10-methacryloyloxydecyl dihydrogen phosphate. J Mech Behav Biomed Mater 2021; 117:104389. [PMID: 33647730 DOI: 10.1016/j.jmbbm.2021.104389] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/08/2021] [Revised: 02/03/2021] [Accepted: 02/05/2021] [Indexed: 11/30/2022]
Abstract
The presence of 10-methacryloyloxydecyl dihydrogen phosphate (MDP) at the adhesive-dentin interface enables ionic binding to calcium salts, which results in rigid nano-layering within the submicron scale resin-dentin interdiffusion zone. MDP has been used with additional co-monomers, such as hydroxyethyl methacrylate (HEMA) and/or 4-methacryloyloxyethyl-trimellitic acid (4-MET), mainly to enhance the chemical bonding properties. However, the use of co-monomers may compromise the rigidity of the adhesive-dentin interface. In this study, we use high-resolution mechanical mapping across the interface to discern the in situ mechanical properties of each target region at the nanoscale. Visualization by modulus mapping demonstrated that HEMA increases the diffusion properties of MDP into dentin structures. However, the rigidity of the adhesive-dentin interface indicated by the storage modulus was markedly lower in MDP containing HEMA than in MDP containing 4-MET. Dynamic indentation testing revealed that the bonding layer was more deformable in the presence of HEMA. Moreover, the presence of MDP in the bonding layer might also increase the deformability because the polymerization linearity allows a large degree of viscoelasticity. These factors also diminish the rigidity of the adhesive-dentin interface. Within the limitations of this study, our findings demonstrated that 4-MET is a better co-monomer than HEMA in MDP-based dental adhesives. Modulus mapping and nanoindentation are introduced as new tests for the adhesive-dentin interface to address queries about the effectiveness of dental adhesives.
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Affiliation(s)
- Shinpei Takahashi
- Department of Pediatric Dentistry, Showa University School of Dentistry, 2-1-1 Kitasenzoku, Ota-ku, Tokyo, 145-8515, Japan
| | - Jun Zhou
- Department of Conservative Dentistry, Division of Biomaterials and Engineering, Showa University School of Dentistry, 1-5-8 Hatanodai, Shinagawa-ku, Tokyo, 142-8555, Japan; Department of Prosthodontics, The Stomatological Hospital, Tianjin Medical University, No.12 Qixiangtai Road, Heping District, Tianjin, China
| | - Wurihan
- Department of Conservative Dentistry, Division of Biomaterials and Engineering, Showa University School of Dentistry, 1-5-8 Hatanodai, Shinagawa-ku, Tokyo, 142-8555, Japan
| | - Naofumi Shimomura
- Department of Pediatric Dentistry, Showa University School of Dentistry, 2-1-1 Kitasenzoku, Ota-ku, Tokyo, 145-8515, Japan
| | - Yu Kataoka
- Department of Conservative Dentistry, Division of Biomaterials and Engineering, Showa University School of Dentistry, 1-5-8 Hatanodai, Shinagawa-ku, Tokyo, 142-8555, Japan
| | - Chie Watanabe
- Department of Conservative Dentistry, Division of Biomaterials and Engineering, Showa University School of Dentistry, 1-5-8 Hatanodai, Shinagawa-ku, Tokyo, 142-8555, Japan
| | - Yo Shibata
- Department of Conservative Dentistry, Division of Biomaterials and Engineering, Showa University School of Dentistry, 1-5-8 Hatanodai, Shinagawa-ku, Tokyo, 142-8555, Japan.
| | - Takahiro Funatsu
- Department of Pediatric Dentistry, Showa University School of Dentistry, 2-1-1 Kitasenzoku, Ota-ku, Tokyo, 145-8515, Japan
| | - Ping Gao
- Department of Prosthodontics, The Stomatological Hospital, Tianjin Medical University, No.12 Qixiangtai Road, Heping District, Tianjin, China
| | - Takashi Miyazaki
- Department of Conservative Dentistry, Division of Biomaterials and Engineering, Showa University School of Dentistry, 1-5-8 Hatanodai, Shinagawa-ku, Tokyo, 142-8555, Japan
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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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Dos Santos RA, de Lima EA, Mendonça LS, de Oliveira JE, Rizuto AV, de Araújo Silva Tavares ÁF, Braz da Silva R. Can universal adhesive systems bond to zirconia? J ESTHET RESTOR DENT 2019; 31:589-594. [PMID: 31456314 DOI: 10.1111/jerd.12521] [Citation(s) in RCA: 5] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/12/2019] [Revised: 06/27/2019] [Accepted: 08/11/2019] [Indexed: 11/29/2022]
Abstract
OBJECTIVE To measure the bond strength to zirconia subjected to different surface treatments of universal bonding agents. MATERIALS AND METHODS Eighty blocks of zirconia were obtained by CAD/CAM milling. The blocks were embedded into PVC tubes, polished sequentially with increasing granulation sandpapers and divided into two groups according to surface treatment: polished or grit-blasted with alumina particles. Each group was then subdivided by bonding agent employed: Z-Prime Plus (control); Scotchbond Universal; All Bond Universal; and Z-Prime Plus + All Bond Universal. Cylindrical composite resin build-ups were constructed atop the blocks using a two-part metal die. Specimens were stored for 24 hours and subjected to microshear bond strength testing. Statistical analyses were performed by means of the F-test (ANOVA), Student's t and Tukey's test. After sputter coating, zirconia surfaces and adhesive interfaces were analyzed by scanning electron microscopy (SEM). RESULTS Bond strength was superior for grit-blasted zirconia. In specimens with this surface treatment, there were no significant differences between experimental groups. On SEM, blasted surfaces exhibited areas of micromechanical retention and adhesive interfaces exhibited areas of zirconia-adhesive interlocking. CONCLUSION Universal adhesive systems were able to bond to zirconia. The interlocking promoted by grit-blasting enhanced bond strength. CLINICAL SIGNIFICANCE Universal adhesive systems simplify bonding to zirconia and enable intraoral repair of fractures.
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Affiliation(s)
- Ricardo Alves Dos Santos
- Faculty of Dentistry of Pernambuco, Universidade de Pernambuco - UPE, Camaragibe, Pernambuco, Brazil
| | - Eliane Alves de Lima
- Faculty of Dentistry of Pernambuco, Universidade de Pernambuco - UPE, Camaragibe, Pernambuco, Brazil
| | - Luciana Sarmento Mendonça
- Faculty of Dentistry of Pernambuco, Universidade de Pernambuco - UPE, Camaragibe, Pernambuco, Brazil
| | | | - Ariela Vilela Rizuto
- Faculty of Dentistry of Pernambuco, Universidade de Pernambuco - UPE, Camaragibe, Pernambuco, Brazil
| | | | - Rodivan Braz da Silva
- Faculty of Dentistry of Pernambuco, Universidade de Pernambuco - UPE, Camaragibe, Pernambuco, Brazil
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Carrilho E, Cardoso M, Marques Ferreira M, Marto CM, Paula A, Coelho AS. 10-MDP Based Dental Adhesives: Adhesive Interface Characterization and Adhesive Stability-A Systematic Review. MATERIALS 2019; 12:ma12050790. [PMID: 30866488 PMCID: PMC6427605 DOI: 10.3390/ma12050790] [Citation(s) in RCA: 92] [Impact Index Per Article: 18.4] [Reference Citation Analysis] [Abstract] [Key Words] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Received: 02/08/2019] [Revised: 03/01/2019] [Accepted: 03/01/2019] [Indexed: 12/18/2022]
Abstract
The incorporation of functional monomers in dental adhesive systems promotes chemical interaction with dental substrates, resulting in higher adhesion forces when compared to micromechanical adhesion only. The 10-MDP monomer, whose chemical structure allows for a polar behavior which is favorable to adhesion, also promotes the protection of collagen fibers through the formation of MDP-calcium salts. This systematic review aimed to characterize the interface created by 10-MDP containing adhesive systems through an evaluation of the following parameters: Formation of nano-layered structures, capacity to produce an acid-base resistant zone, and adhesion stability. The research was conducted using PubMed, Cochrane Library, Web of Science and Embase, limited to English, Spanish, and Portuguese articles. The research was done according to the PICO strategy. The 10-MDP monomer has the capacity to produce an acid-base resistant zone on the adhesive interface, which increases the response to acid-base challenges. The adhesion established by these systems is stable over time. To have the best of these adhesive solutions, a scrubbing technique must be used to apply the adhesive system on dental substrates, in order to improve monomers infiltration and to create a stable bond. Time must be given for the solution to infiltrate, hybridize and form the MDP-Ca, improving adhesive stability.
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Affiliation(s)
- Eunice Carrilho
- Faculty of Medicine, University of Coimbra, 3000-354 Coimbra, Portugal.
- Institute of Integrated Clinical Practice, Faculty of Medicine, University of Coimbra, 3000-354 Coimbra, Portugal.
- Institute for Clinical and Biomedical Research (iCBR) area of Environment Genetics and Oncobiology (CIMAGO), Faculty of Medicine, University of Coimbra, 3000-354 Coimbra, Portugal.
- CNC.IBILI, Faculty of Medicine, University of Coimbra, 3000-354 Coimbra, Portugal.
| | - Miguel Cardoso
- Faculty of Medicine, University of Coimbra, 3000-354 Coimbra, Portugal.
- Institute of Integrated Clinical Practice, Faculty of Medicine, University of Coimbra, 3000-354 Coimbra, Portugal.
| | - Manuel Marques Ferreira
- Faculty of Medicine, University of Coimbra, 3000-354 Coimbra, Portugal.
- Institute of Integrated Clinical Practice, Faculty of Medicine, University of Coimbra, 3000-354 Coimbra, Portugal.
- Institute for Clinical and Biomedical Research (iCBR) area of Environment Genetics and Oncobiology (CIMAGO), Faculty of Medicine, University of Coimbra, 3000-354 Coimbra, Portugal.
- CNC.IBILI, Faculty of Medicine, University of Coimbra, 3000-354 Coimbra, Portugal.
- Institute of Endodontics, Faculty of Medicine, University of Coimbra, 3000-354 Coimbra, Portugal.
| | - Carlos Miguel Marto
- Faculty of Medicine, University of Coimbra, 3000-354 Coimbra, Portugal.
- Institute for Clinical and Biomedical Research (iCBR) area of Environment Genetics and Oncobiology (CIMAGO), Faculty of Medicine, University of Coimbra, 3000-354 Coimbra, Portugal.
- CNC.IBILI, Faculty of Medicine, University of Coimbra, 3000-354 Coimbra, Portugal.
- Institute of Experimental Pathology, Faculty of Medicine, University of Coimbra, 3000-354 Coimbra, Portugal.
| | - Anabela Paula
- Faculty of Medicine, University of Coimbra, 3000-354 Coimbra, Portugal.
- Institute of Integrated Clinical Practice, Faculty of Medicine, University of Coimbra, 3000-354 Coimbra, Portugal.
- Institute for Clinical and Biomedical Research (iCBR) area of Environment Genetics and Oncobiology (CIMAGO), Faculty of Medicine, University of Coimbra, 3000-354 Coimbra, Portugal.
- CNC.IBILI, Faculty of Medicine, University of Coimbra, 3000-354 Coimbra, Portugal.
| | - Ana Sofia Coelho
- Faculty of Medicine, University of Coimbra, 3000-354 Coimbra, Portugal.
- Institute of Integrated Clinical Practice, Faculty of Medicine, University of Coimbra, 3000-354 Coimbra, Portugal.
- Institute for Clinical and Biomedical Research (iCBR) area of Environment Genetics and Oncobiology (CIMAGO), Faculty of Medicine, University of Coimbra, 3000-354 Coimbra, Portugal.
- CNC.IBILI, Faculty of Medicine, University of Coimbra, 3000-354 Coimbra, Portugal.
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Dos Santos RA, de Lima EA, Montes MAJR, Braz R. Pre-treating dentin with chlorhexadine and CPP-ACP: self-etching and universal adhesive systems. ACTA BIOMATERIALIA ODONTOLOGICA SCANDINAVICA 2016. [PMID: 28642915 PMCID: PMC5433212 DOI: 10.1080/23337931.2016.1203265] [Citation(s) in RCA: 6] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Subscribe] [Scholar Register] [Indexed: 11/02/2022]
Abstract
Objective: The aim of the present study was to compare the effect of pre-treating dentin with chlorhexidine, at concentrations of 0.2% and 2%, and remineralizing paste containing CPP-ACP (MI Paste - GC) on the bond strength of adhesive systems. Material and methods: In total, 80 slides of dentin were used. These slides were 2 mm thick and were obtained from bovine incisors. Standard cavities were created using diamond bur number 3131. In the control groups, a Scotchbond Universal Adhesive (SUA) self-etching adhesive system of 3M ESPE and a Clearfil SE Bond (CSE) adhesive system of Kuraray were applied, following the manufacturer's instructions. In the other groups, dentin was pretreated with chlorhexidine (0.2% and 2%) for 1 min and with MI Paste for 3 min. The cavities were restored with Z350 XT resin (3M ESPE). After 24 h of storage, the push-out test was applied at a speed of 0.5 mm/min. Results: The different dentin pretreatment techniques did not affect the intra-adhesive bond strength. There was a difference between treatment with MI Paste and chlorhexidine 0.2% in favor of the SUA, with values of 15.22 and 20.25 Mpa, respectively. Conclusions: The different pretreatment methods did not alter the immediate bond strength to dentin. Differences were only recorded when comparing the adhesives.
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Affiliation(s)
| | | | | | - Rodivan Braz
- Department of DentistryUniversity of Pernambuco - BrazilRecifePEBrazil
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Takahashi H. Effect of calcium salt of 10-methacryloyloxydecyl dihydrogen phosphate produced on the bond durability of one-step self-etch adhesive. Dent Mater J 2016; 33:394-401. [PMID: 24882111 DOI: 10.4012/dmj.2014-008] [Citation(s) in RCA: 15] [Impact Index Per Article: 1.9] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/23/2022]
Abstract
Five experimental 10-methacryloyloxydecyl dihydrogen phosphate (MDP)-based one-step self-etch adhesives were designed by varying amounts of MDP. The aim of this study was to examine the effect of the quantity of calcium salt of MDP (MDP-Ca) salt produced by demineralization on the bond durability between experimental one-step adhesives and enamel or dentin. Bond strengths of experimental adhesives to the enamel and dentin were measured, before and after 30,000×thermocycling. The fractured enamel and dentin samples as well as the fractured adhesive surfaces obtained during adhesion test were analyzed by a scanning electron microscope and energy-dispersive X-ray microscope. An increase in the amount of MDP-Ca salt to above 37.2 mg/g drastically decreased the dentin bond strength and changed the fracture type during the thermocycling process. In contrast, the enamel bond strength remained unchanged, although the fracture type changed to an interfacial failure with increasing the amount of MDP-Ca salt to 78.3 mg/g.
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Affiliation(s)
- Haruyoshi Takahashi
- Department of Dental Biomaterials, Nihon University School of Dentistry at Matsudo
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Transmission of light in the visible spectrum (400–700 nm) and blue spectrum (360–540 nm) through CAD/CAM polymers. Clin Oral Investig 2016; 20:2501-2506. [DOI: 10.1007/s00784-016-1755-x] [Citation(s) in RCA: 11] [Impact Index Per Article: 1.4] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/17/2015] [Accepted: 02/12/2016] [Indexed: 11/26/2022]
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da Silva EM, de Sá Rodrigues CUF, de Oliveira Matos MP, de Carvalho TR, dos Santos GB, Amaral CM. Experimental etch-and-rinse adhesive systems containing MMP-inhibitors: Physicochemical characterization and resin-dentin bonding stability. J Dent 2015; 43:1491-7. [DOI: 10.1016/j.jdent.2015.10.004] [Citation(s) in RCA: 20] [Impact Index Per Article: 2.2] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/11/2015] [Revised: 08/19/2015] [Accepted: 10/05/2015] [Indexed: 01/01/2023] Open
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Time-dependent periimplant bone reaction of acidic monomer-treated injection molded zirconia implants in rabbit tibiae. IMPLANT DENT 2015; 24:287-93. [PMID: 25902367 DOI: 10.1097/id.0000000000000246] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/26/2022]
Abstract
PURPOSE The aim of this study was to evaluate and compare the osseointegration of zirconia implants in rabbit tibiae with and without 10-methacryloyloxydecyl dihydrogen phosphate (MDP) treatment. MATERIALS AND METHODS Twenty-eight rabbits received a total of 112 external hex-type implants made by the powder injection molding technique with and without MDP treatment before installation in the tibiae. The contact angles on the zirconia implants and zirconia discs before and after MDP application were evaluated. Removal torque (RT) and bone-implant contact (BIC) ratios were measured. RESULTS The MDP treatment markedly enhanced the hydrophilicity and seemed to alter the topography and chemical composition of the implant and disc surface. As the healing time increases, the BIC and RT were increased in both groups. The MDP-treated implants exhibited higher BIC values than the control implants after 2 and 4 weeks of healing. The RT was higher in MDP-treated implants after 2 weeks of healing but not after 4 weeks of healing. CONCLUSION The 10-MDP treatments made the surface more hydrophilic and enhanced the osseointegration of the implants in the early healing phase.
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Yazdi FM, Moosavi H, Atai M, Zeynali M. Dentin bond strength and degree of conversion evaluation of experimental self-etch adhesive systems. J Clin Exp Dent 2015; 7:e243-9. [PMID: 26155340 PMCID: PMC4483331 DOI: 10.4317/jced.51842] [Citation(s) in RCA: 12] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/04/2014] [Accepted: 11/04/2014] [Indexed: 11/05/2022] Open
Abstract
BACKGROUND The aim of this study was to investigate the effect of different concentrations of 10-methacryloyloxydecyl dihydrogen phosphate (10-MDP) monomer in one-step self-etch experimental adhesives on dentinal microshear bond strength (µSBS), their degree of conversion and bonded micro structure. MATERIAL AND METHODS Composite resin cylinders (Clearfil AP-X) were bonded on human sound molar dentinal surfaces by using five experimental one-step self-etching adhesives (1-SEAs) containing 0% (E0), 5% (E5), 10% (E10), 15% (E15), 20% (E20) (by weight) 10-MDP monomer and Clearfil S3 Bond (CS3) as a control. After 24 hours, microshear bond strength was tested. The degree of conversion was also measured using Fourier transform infrared spectroscopy. Interfacial ultrastructure was observed under a scanning electron microscope in all the groups. RESULTS A higher microshear bond strength was observed with adhesives containing 10% and 15% 10-MDP in comparison to study groups (P<.05). Clearfil S3 Bond and 10% MDP had a significantly greater degree of conversion than other groups (P<.05). CONCLUSIONS The amount of functional monomer in 1-SEAs influences both the bonding performance and degree of conversion; 10% 10-MDP showed the best combination of bond strength and degree of conversion. Key words:Self-etch adhesives, 10-MDP, bond strength, degree of conversion.
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Affiliation(s)
- Fatemeh-Maleknejad Yazdi
- Professor, Dental Materials Research Center, Department of Operative Dentistry, Mashhad Dental School, Mashhad University of Medical Sciences, Mashhad, Iran
| | - Horieh Moosavi
- Associate Professor, Dental Materials Research Center, Department of Operative Dentistry, Mashhad Dental School, Mashhad University of Medical Sciences, Mashhad, Iran
| | - Mohammad Atai
- Department of Polymer Sciences, Iran Polymer and Petrochemical Institute, P.O. Box 14965/159, Tehran, Iran
| | - Mahsa Zeynali
- Assistant Professor, Dental Materials Research Center, Department of Operative Dentistry, Mashhad Dental School, Mashhad University of Medical Sciences, Mashhad, Iran
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Nogawa H, Koizumi H, Akazawa N, Hiraba H, Nakamura M, Matsumura H. Effect of sodium sulfite, carboxylic monomer, and phosphoric acid etching on bonding of tri-n-butylborane initiated resin to human enamel. J Oral Sci 2015; 57:17-24. [PMID: 25807904 DOI: 10.2334/josnusd.57.17] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/01/2022]
Abstract
The purpose of the present study is evaluation of bonding durability of tri-n-butylborane (TBB) initiated resin without 4-methacryloyloxyethyl trimellitate anhydride (4-META) joined to human enamel. Ground human enamel was bonded with TBB resin under six surface conditions: 1) as ground, 2) primed with Teeth Primer, 3) sodium sulfite solution, 4) 4-META solution, 5) acetone-water, and 6) phosphoric acid etching. Pre- and post-thermocycling bond strengths and change in strength after thermocycling were compared. Etching enamel with 35-45% phosphoric acid enhanced bonding durability between enamel and TBB-initiated resin. Priming with Teeth Primer or 4-META solution improved bond strength between enamel and TBB-initiated resin. Sodium sulfite had little effect on enamel bonding in the present bonding systems.
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Affiliation(s)
- Hiroshi Nogawa
- Division of Applied Oral Science, Nihon University Graduate School of Dentistry
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Nogawa H, Koizumi H, Saiki O, Hiraba H, Nakamura M, Matsumura H. Effect of a self-etching primer and phosphoric acid etching on the bond strength of 4-META/MMA-TBB resin to human enamel. Dent Mater J 2015; 34:219-26. [PMID: 25740168 DOI: 10.4012/dmj.2014-227] [Citation(s) in RCA: 10] [Impact Index Per Article: 1.1] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/23/2022]
Abstract
The purpose of this study was to evaluate the shear bond strength and durability of 4-META/MMA-TBB resin to human enamel. A self-etching primer that contained 4-META (Teeth Primer, TP) and 35-45% or 60-65% concentrations of phosphoric acid (K-Etchant Gel, KE, and Super Bond C&B Red Activator, RA) were used as the surface treatment agents. A methyl methacrylate (MMA)-based self-polymerizing resin (Super-Bond C&B) was used as a luting agent. The shear bond strength was determined both pre and post thermocycling. The results were statistically analyzed with a non-parametric procedure. The post-thermocycling shear bond strength of the TP group was significantly higher than that of other groups, and that of the KE group was significantly higher compared with the RA group. These results demonstrated that 4-META was effective. Furthermore, when the degree of tooth demineralization was compared, surface treatment with less demineralization using TP was the most effective treatment.
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Affiliation(s)
- Hiroshi Nogawa
- Division of Applied Oral Sciences, Nihon University Graduate School of Dentistry
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14
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Lin J, Zheng WY, Liu PRF, Zhang N, Lin HP, Fan YJ, Gu XH, Vollrath O, Mehl C. Influence of casein phosphopeptide-amorphous calcium phosphate application, smear layer removal, and storage time on resin-dentin bonding. J Zhejiang Univ Sci B 2014; 15:649-60. [PMID: 25001224 DOI: 10.1631/jzus.b1300216] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.2] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/11/2022]
Abstract
The aim of this study is to evaluate the influence of Tooth Mousse (TM) application, smear layer removal, and storage time on resin-dentin microtensile bond strength (µTBS). Dentin specimens were divided into two groups: (1) smear layer covered; (2) smear layer removed using 15% EDTA for 90 s. In each group, half the specimens were treated once with TM for 60 min. After bonding procedures using a two-step self-etching adhesive (Clearfil SE Bond (CSE); Kuraray Medical, Tokyo, Japan), an all-in-one adhesive (G-Bond (GB); GC Corp, Tokyo, Japan), and a total-etch adhesive (Adper Single Bond 2 (SB); 3M ESPE, St. Paul, MN, USA), the specimens were stored for 3 d or 6 months in deionized water at 37 °C, and µTBS was tested and analyzed. With the exception of SB (no TM application) and GB, the μTBS was significantly increased for CSE and SB using EDTA pre-conditioning and 3 d of storage (P≤0.001). Bond strength of GB decreased significantly when using EDTA (3 d storage, P<0.05). TM application only increased the μTBS of GB (no EDTA) and SB (with EDTA) after 3 d (P≤0.02). Comparing the adhesives after 3 d of storage, CSE exhibited the greatest μTBS values followed by GB and SB (P≤0.02). The factors of adhesive, EDTA, and TM did not show any significant impact on μTBS when specimens were stored for 6 months (P>0.05). The additional application of TM and EDTA for cavity preparation seems only to have a short-term effect, and no influence on µTBS of dentin bonds after a period of 6 months.
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Affiliation(s)
- Jun Lin
- Department of Stomatology, the First Affiliated Hospital, School of Medicine, Zhejiang University, Hangzhou 310003, China; Institute of Medical Informatics and Statistics, University Hospital Schleswig-Holstein, Campus Kiel, 24105 Kiel, Germany; Department of Prosthodontics, Propaedeutics and Dental Materials, Christian-Albrechts University at Kiel, Arnold-Heller-Straße 16, 24105 Kiel, Germany
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