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Liu X, Zhang R, Yu X, Hua F, Zhang L, Chen Z. Self-adhesive flowable composite resins and flowable composite resins in permanent teeth with occlusal cavities: A systematic review and meta-analysis. J Dent 2023; 138:104691. [PMID: 37683798 DOI: 10.1016/j.jdent.2023.104691] [Citation(s) in RCA: 1] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/04/2023] [Revised: 08/31/2023] [Accepted: 09/01/2023] [Indexed: 09/10/2023] Open
Abstract
OBJECTIVES To compare the clinical performance (retention, secondary caries, marginal adaptation, marginal discoloration, and postoperative hypersensitivity) of self-adhesive flowable composite resins (SAFCs) and flowable composite resins (FCs) in permanent teeth with occlusal cavities. DATA Randomized controlled trials (RCTs) of SAFCs versus FCs with a follow-up length of at least one year. No restrictions were placed on language or publication date. SOURCES Five databases, including PubMed, Embase, Web of Science, Scopus, and the Cochrane Central Register of Controlled Trials, were searched manually by browsing ten related journals. On 14 June 2023, all electronic and manual searches were updated. STUDY SELECTION Five RCTs with 138 participants were included. Cochrane's risk of bias tool (2.0) was implemented in selected studies, and the GRADE tool was utilised to evaluate the evidence quality. To summarize the effects of the treatments and pool the data, a random-effects model was used. CONCLUSIONS According to the modified United States Public Health Service Evaluation (USPHS) criteria, there was no discernible difference between the groups during the two-year follow-up period (maximum follow-up time). Nevertheless, FCs applied with the etch-and-rinse mode demonstrated superior marginal adaptation and marginal discoloration at the two-year follow-up (relative risk = 3.21 [1.50 to 6.83], 3.40 [1.10, 10.48]). The evidence for marginal discoloration at any recall time and marginal adaptation at the one-year follow-up was graded as moderate quality due to inconsistency. Moreover, low-quality evidence for marginal adaptation at two-year follow-up was due to imprecision and inconsistency. CLINICAL SIGNIFICANCE SAFCs exhibited clinical performance comparable to that of FCs in occlusal cavities. Further high-quality clinical trials are needed to provide solid evidence to support the clinical application of SAFCs. REGISTRATION PROSPERO (CRD42022374983).
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Affiliation(s)
- Xinya Liu
- State Key Laboratory of Oral & Maxillofacial Reconstruction and Regeneration, Key, Laboratory of Oral Biomedicine Ministry of Education, Hubei Key Laboratory of, Stomatology School & Hospital of Stomatology Wuhan University, Wuhan, China; Department of Cariology & Endodontics, School and Hospital of Stomatology, Wuhan University, Wuhan, China
| | - Ruonan Zhang
- State Key Laboratory of Oral & Maxillofacial Reconstruction and Regeneration, Key, Laboratory of Oral Biomedicine Ministry of Education, Hubei Key Laboratory of, Stomatology School & Hospital of Stomatology Wuhan University, Wuhan, China; Department of Cariology & Endodontics, School and Hospital of Stomatology, Wuhan University, Wuhan, China
| | - Xueqian Yu
- Library, School & Hospital of Stomatology, Wuhan University, Wuhan, China
| | - Fang Hua
- Center for Evidence-Based Stomatology, School & Hospital of Stomatology, Wuhan University, Wuhan, China; Division of Dentistry, School of Medical Sciences, Faculty of Biology, Medicine and Health, University of Manchester, Manchester, UK
| | - Lu Zhang
- State Key Laboratory of Oral & Maxillofacial Reconstruction and Regeneration, Key, Laboratory of Oral Biomedicine Ministry of Education, Hubei Key Laboratory of, Stomatology School & Hospital of Stomatology Wuhan University, Wuhan, China; Department of Cariology & Endodontics, School and Hospital of Stomatology, Wuhan University, Wuhan, China.
| | - Zhi Chen
- State Key Laboratory of Oral & Maxillofacial Reconstruction and Regeneration, Key, Laboratory of Oral Biomedicine Ministry of Education, Hubei Key Laboratory of, Stomatology School & Hospital of Stomatology Wuhan University, Wuhan, China; Department of Cariology & Endodontics, School and Hospital of Stomatology, Wuhan University, Wuhan, China.
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Zirconia Nanoparticles as Reinforcing Agents for Contemporary Dental Luting Cements: Physicochemical Properties and Shear Bond Strength to Monolithic Zirconia. Int J Mol Sci 2023; 24:ijms24032067. [PMID: 36768390 PMCID: PMC9916921 DOI: 10.3390/ijms24032067] [Citation(s) in RCA: 3] [Impact Index Per Article: 3.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/27/2022] [Revised: 01/06/2023] [Accepted: 01/18/2023] [Indexed: 01/21/2023] Open
Abstract
Nanofillers in resin materials can improve their mechanical and physicochemical properties. The present work investigated the effects of zirconia nanoparticles (NPs) as fillers in commercial dental luting cements. Two dual-cured self-adhesive composites and one resin modified glass ionomer (RMGI) luting cement were employed. Film thickness (FT), flexural strength (FS), water sorption (Wsp), and shear bond strength (SBS) to monolithic zirconia were evaluated according to ISO 16506:2017 and ISO 9917-2:2017, whereas polymerization progress was evaluated with FTIR. Photopolymerization resulted in double the values of DC%. The addition of 1% wt NPs does not significantly influence polymerization, however, greater amounts do not promote crosslinking. The sorption behavior and the mechanical performance of the composites were not affected, while the film thickness increased in all luting agents, within the acceptable limits. Thermocycling (TC) resulted in a deteriorating effect on all composites. The addition of NPs significantly improved the mechanical properties of the RMGI cement only, without negatively affecting the other cements. Adhesive primer increased the initial SBS significantly, however after TC, its application was only beneficial for RMGI. The MDP containing luting cement showed higher SBS compared to the RMGI and 4-META luting agents. Future commercial adhesives containing zirconia nanoparticles could provide cements with improved mechanical properties.
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Masaka N, Yoneda S, Masaka K. An up to 43-year longitudinal study of fixed prosthetic restorations retained with 4-META/MMA-TBB resin cement or zinc phosphate cement. J Prosthet Dent 2023; 129:83-88. [PMID: 34175113 DOI: 10.1016/j.prosdent.2021.04.004] [Citation(s) in RCA: 3] [Impact Index Per Article: 3.0] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/19/2020] [Revised: 04/08/2021] [Accepted: 04/08/2021] [Indexed: 01/18/2023]
Abstract
STATEMENT OF PROBLEM Adhesive resin cement has been the preferred choice for the placement of prosthetic restorations, but evidence-based studies supporting this selection are sparse. PURPOSE The purpose of this study was to test the hypothesis that restoration placement with the adhesive 4-methacryloxyethyl trimellitate anhydride/methyl methacrylate-tributylborane (4-META/MMA-TBB) resin cement is associated with better longevity of teeth than zinc phosphate cement up to 43 years. MATERIALS AND METHODS Study participants were individuals who had been visiting the clinic regularly for more than 20 years from their first visit between November 1970 and April 1985. The vital teeth with prosthetic restorations (N=454), including cast inlays, onlays, crowns, and fixed partial dentures, of 53 patients were assessed from dental charts and radiographs. Most of the bonding surfaces were precious metal alloy, excluding 4 restorations cemented with zinc phosphate and 6 ceramic crowns cemented with 4-META/MMA-TBB resin cement. The Kaplan-Meier method and log-rank test (α=.05) were used to compare longevity between the 2 materials. Chi-squared tests (α=.001) were also used to examine the occurrence rates of events such as secondary caries, endodontic treatment, and the dislodgement of restorations affecting the longevity of the 2 cements. RESULTS Clinical review examination demonstrated that 55.4% of teeth retained with 4-META/MMA-TBB resin cement had been in service for 30 years compared with 43.5% of those retained with zinc phosphate cement, with a significant difference (P=.006). 4-META/MMA-TBB resin cement also demonstrated lower event occurrence rates than zinc phosphate cement for 3 assessed types of events (P<.001). CONCLUSIONS Within the limitations of this study, 4-META/MMA-TBB resin adhesive cement demonstrated a higher survival rate than conventional zinc phosphate cement in service for 30 years with a lower occurrence of critical events.
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Affiliation(s)
- Nobuo Masaka
- ex-Chairman, General Practitioner, Medical Corporation Shi-Sei-Kai Masaka Dental Clinic, Tokyo, Japan
| | - Satoshi Yoneda
- General Practitioner, Medical Corporation Shi-Sei-Kai Masaka Dental Clinic, Tokyo, Japan.
| | - Kozue Masaka
- General Practitioner, Medical Corporation Shi-Sei-Kai Masaka Dental Clinic, Tokyo, Japan
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Matsuura T, Komatsu K, Ogawa T. N-Acetyl Cysteine-Mediated Improvements in Dental Restorative Material Biocompatibility. Int J Mol Sci 2022; 23:ijms232415869. [PMID: 36555541 PMCID: PMC9781091 DOI: 10.3390/ijms232415869] [Citation(s) in RCA: 4] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/23/2022] [Revised: 12/02/2022] [Accepted: 12/12/2022] [Indexed: 12/23/2022] Open
Abstract
The fibroblast-rich gingival tissue is usually in contact with or adjacent to cytotoxic polymer-based dental restoration materials. The objective of this study was to determine whether the antioxidant amino acid, N-acetyl cysteine (NAC), reduces the toxicity of dental restorative materials. Human oral fibroblasts were cultured with bis-acrylic, flowable composite, bulk-fill composite, self-curing acrylic, and titanium alloy test specimens. Cellular behavior and function were analyzed on and around the materials. Impregnation of the bulk-fill composite and self-curing acrylic with NAC reduced their toxicity, improving the attachment, growth, and function of human oral fibroblasts on and around the materials. These mitigating effects were NAC dose dependent. However, NAC impregnation of the bis-acrylic and flowable composite was ineffective, with no cells attaching to nor around the materials. Although supplementing the culture medium with NAC also effectively improved fibroblast behaviors, direct impregnation of materials with NAC was more effective than supplementing the cultures. NAC-mediated improvements in fibroblast behavior were associated with reduced production of reactive oxygen species and oxidized glutathione together with increased glutathione reserves, indicating that NAC effectively directly scavenged ROS from materials and reinforced the cellular antioxidant defense system. These results establish a proof of concept of NAC-mediated improvements in biocompatibility in the selected dental restorative materials.
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Affiliation(s)
| | | | - Takahiro Ogawa
- Correspondence: ; Tel.: +1-310-794-7653; Fax: +1-310-825-6345
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Zajkani E, Omidi F, Taromi Z. Evaluation of Microleakage at the Junction Between Combined Amalgam/Composite Resin Restorations Using Different Bonding Systems in Class II Cavities. PESQUISA BRASILEIRA EM ODONTOPEDIATRIA E CLÍNICA INTEGRADA 2022. [DOI: 10.1590/pboci.2022.064] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 03/18/2023] Open
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Liu JF, Yang CC, Luo JL, Liu YC, Yan M, Ding SJ. Bond strength of self-adhesive resin cements to a high transparency zirconia crown and dentin. J Dent Sci 2021; 17:973-983. [PMID: 35756805 PMCID: PMC9201647 DOI: 10.1016/j.jds.2021.12.008] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/22/2021] [Revised: 12/06/2021] [Indexed: 11/25/2022] Open
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Yoshida S, Sugii H, Itoyama T, Kadowaki M, Hasegawa D, Tomokiyo A, Hamano S, Ipposhi K, Yamashita K, Maeda H. Development of a novel direct dental pulp-capping material using 4-META/MMA-TBB resin with nano hydroxyapatite. MATERIALS SCIENCE & ENGINEERING. C, MATERIALS FOR BIOLOGICAL APPLICATIONS 2021; 130:112426. [PMID: 34702511 DOI: 10.1016/j.msec.2021.112426] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Received: 04/13/2021] [Revised: 08/30/2021] [Accepted: 09/06/2021] [Indexed: 01/09/2023]
Abstract
In the case of dental pulp exposure, direct pulp capping is often performed to preserve vital dental pulp tissue. Numerous studies regarding the development of direct pulp-capping materials have been conducted, but materials with an appropriate sealing ability, which induce dense reparative dentin formation, have not been developed. Although nano hydroxyapatite (naHAp) is a bone-filling material with bioactivity and biocompatibility, the inductive effects of naHAp on reparative dentin formation remain unclear. In the present study, the effects of dental adhesive material 4-methacryloxyethyl trimellitate anhydride/methyl methacrylate tri-n-butylborane [4-META/MMA-TBB or Super-bond (SB)], which included 10%, 30%, and 50% naHAp (naHAp/SB) on odontoblastic differentiation of dental pulp stem cells (DPSCs) and reparative dentin formation were investigated. Scanning electron microscopy (SEM) and energy dispersive X-ray spectrometer analysis were performed to verify the existence of naHAp particles on the surface of naHAp/SB discs. The tensile adhesive strength of naHAp/SB was measured using a universal testing machine. As a result, 10% naHAp/SB and 30% naHAp/SB showed almost the same tensile adhesive strength as SB but 50% naHAp/SB showed significantly lower than the other experimental group. WST-1 proliferation assay and SEM analysis revealed that naHAp/SB did not affect the proliferation of DPSCs. Calcium release assay, quantitative RT-PCR, and western blotting analysis demonstrated that naHAp/SB did not release calcium ion but 30% naHAp/SB increased the expression of calcium-sensing receptor (CaSR) in DPSCs. Additionally, quantitative RT-PCR, western blotting analysis, Alizarin Red S- and von Kossa staining revealed that 30% naHAp/SB induced odontoblastic differentiation of DPSCs, which was inhibited by a MEK/ERK inhibitor and CaSR antagonist. Furthermore, 30% naHAp/SB promoted dense reparative dentin formation in an experimentally-formed rat dental pulp exposure model. These findings suggest that 30% naHAp/SB can be used as an ideal direct pulp capping material.
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Affiliation(s)
- Shinichiro Yoshida
- Division of Endodontology, Kyushu University Hospital, 3-1-1 Maidashi, Higashi-ku, Fukuoka 812-8582, Japan.
| | - Hideki Sugii
- Department of Endodontology and Operative Dentistry, Faculty of Dental Science, Kyushu University, 3-1-1 Maidashi, Higashi-ku, Fukuoka 812-8582, Japan
| | - Tomohiro Itoyama
- Division of Endodontology, Kyushu University Hospital, 3-1-1 Maidashi, Higashi-ku, Fukuoka 812-8582, Japan
| | - Masataka Kadowaki
- Department of Endodontology and Operative Dentistry, Faculty of Dental Science, Kyushu University, 3-1-1 Maidashi, Higashi-ku, Fukuoka 812-8582, Japan
| | - Daigaku Hasegawa
- Department of Endodontology and Operative Dentistry, Faculty of Dental Science, Kyushu University, 3-1-1 Maidashi, Higashi-ku, Fukuoka 812-8582, Japan
| | - Atsushi Tomokiyo
- Division of Endodontology, Kyushu University Hospital, 3-1-1 Maidashi, Higashi-ku, Fukuoka 812-8582, Japan
| | - Sayuri Hamano
- Department of Endodontology and Operative Dentistry, Faculty of Dental Science, Kyushu University, 3-1-1 Maidashi, Higashi-ku, Fukuoka 812-8582, Japan; OBT Research Center, Faculty of Dental Science, Kyushu University, 3-1-1 Maidashi, Higashi-ku, Fukuoka 812-8582, Japan
| | - Keita Ipposhi
- Department of Endodontology and Operative Dentistry, Faculty of Dental Science, Kyushu University, 3-1-1 Maidashi, Higashi-ku, Fukuoka 812-8582, Japan
| | - Kozue Yamashita
- Department of Endodontology and Operative Dentistry, Faculty of Dental Science, Kyushu University, 3-1-1 Maidashi, Higashi-ku, Fukuoka 812-8582, Japan
| | - Hidefumi Maeda
- Division of Endodontology, Kyushu University Hospital, 3-1-1 Maidashi, Higashi-ku, Fukuoka 812-8582, Japan; Department of Endodontology and Operative Dentistry, Faculty of Dental Science, Kyushu University, 3-1-1 Maidashi, Higashi-ku, Fukuoka 812-8582, Japan
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Sürmelioğlu D, Hepokur C, Yavuz SA, Aydın U. Evaluation of the cytotoxic and genotoxic effects of different universal adhesive systems. J Conserv Dent 2021; 23:384-389. [PMID: 33623241 PMCID: PMC7883794 DOI: 10.4103/jcd.jcd_376_20] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/31/2020] [Revised: 09/03/2020] [Accepted: 09/18/2020] [Indexed: 11/30/2022] Open
Abstract
Objectives: The objective of this study was to evaluate and compare the cytotoxicity and genotoxicity of different universal adhesive systems in the mouse fibroblast cell line L929. Materials and Methods: L929 (mouse fibroblast) cells were exposed to G-Premio Bond (GPB) (GC Europe, Belgium), Prime&Bond Universal (Dentsply Sirona, USA), Universal Bond Quick (Kuraray, USA), Single Bond (SB) Universal (3M ESPE, USA), and Tokuyama Universal Bond (TB) (Tokuyama, USA). Cell viability was assessed by the 2,3-bis-(2-methoxy-4-nitro-5-sulfophenyl)-2H-tetrazolium-5-carboxanilide test, whereas oxidative DNA damage was assessed by determining the 8-hydroxydeoxyguanosine level using an enzyme-linked immunoassay kit. Statistical analysis was performed by one-way analysis of variance, followed by Bonferroni post hoc tests. Results: Cytotoxic and genotoxic effects of TB and SB Universal groups were significantly higher than the other groups (P < 0.05). Among the adhesives tested, GPB (93.0 ± 1.3) had the least cytotoxicity, while TB (67.3 ± 3.0) had the most cytotoxic effect. In terms of genotoxicity, GPB (2.2 ± 0.3) had the least genotoxic effect, while Tokuyama Bond Universal (4.17 ± 0.4) had the most genotoxic effect. Conclusions: Universal adhesive systems used in dentistry have cytotoxic and genotoxic effects in live cells. Universal adhesive systems should, therefore, be used with caution due to their cytotoxic and genotoxic effects in clinical applications.
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Affiliation(s)
- Derya Sürmelioğlu
- Department of Restorative Dentistry, Faculty of Dentistry, Gaziantep University, Şehitkamil, Gaziantep, Turkey
| | - Ceylan Hepokur
- Department of Biochemistry, Faculty of Pharmacy, Sivas, Turkey
| | - Sevim Atılan Yavuz
- Department of Endodontics, Faculty of Dentistry, Gaziantep University, Şehitkamil, Gaziantep, Turkey
| | - Uğur Aydın
- Department of Restorative Dentistry, Faculty of Dentistry, Gaziantep University, Şehitkamil, Gaziantep, 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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KHANLAR LNASIRY, TAKAGAKI T, INOKOSHI M, IKEDA M, NIKAIDO T, TAGAMI J. The effect of carboxyl-based monomers on resin bonding to highly translucent zirconia ceramics. Dent Mater J 2020; 39:956-962. [DOI: 10.4012/dmj.2019-312] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/23/2022]
Affiliation(s)
- Leila NASIRY KHANLAR
- Department of Cariology and Operative Dentistry, Graduate School of Medical and Dental Sciences, Tokyo Medical and Dental University (TMDU)
| | - Tomohiro TAKAGAKI
- Department of Cariology and Operative Dentistry, Graduate School of Medical and Dental Sciences, Tokyo Medical and Dental University (TMDU)
- Department of Operative Dentistry, Division of Oral Functional Science and Rehabilitation, School of Dentistry, Asahi University
| | - Masanao INOKOSHI
- Department of Gerodontology and Oral Rehabilitation, Graduate School of Medical and Dental Sciences, Tokyo Medical and Dental University (TMDU)
| | - Masaomi IKEDA
- Department of Oral Prosthetic Engineering, Graduate School of Medical and Dental Sciences, Tokyo Medical and Dental University (TMDU)
| | - Toru NIKAIDO
- Department of Cariology and Operative Dentistry, Graduate School of Medical and Dental Sciences, Tokyo Medical and Dental University (TMDU)
- Department of Operative Dentistry, Division of Oral Functional Science and Rehabilitation, School of Dentistry, Asahi University
| | - Junji TAGAMI
- Department of Cariology and Operative Dentistry, Graduate School of Medical and Dental Sciences, Tokyo Medical and Dental University (TMDU)
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Demirel G, Demirsoy FFK, Irmak Ö. Cytotoxicity evaluation of eluates from universal adhesives by real-time cell analysis. Dent Mater J 2020; 39:815-824. [PMID: 32507798 DOI: 10.4012/dmj.2019-221] [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] [Indexed: 11/23/2022]
Abstract
The aim of this study was to evaluate the cytotoxicity of universal adhesives on L929 mouse fibroblast cell line by using a real-time cell analysis. In order to obtain extract, six different cured dental adhesives were immersed in Dulbecco's Modified Eagle's Medium (DMEM) at 37°C for 24 h. A real-time cell analysis system was used to assess cytotoxicity of the dental adhesives. After seeding 25,000 cells/300 μL/well cell suspensions into the wells of an e-plate, fibroblasts were exposed to extracts of tested adhesives at varying dilutions (1:1, 1:2, and 1:10) and observed at every 30 min intervals for 72 h. Three-way ANOVA one factor repeated measures were used to analyze the results (α=0.05). All tested adhesives induced cell viability loss, cell morphology alteration, and cell death depending on extract concentration and time. Cell viability of L929 cells to between 44 and 10% for 1:1 diluted extracts, at 72 h, when compared to the negative control.
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Affiliation(s)
- Gülbike Demirel
- Faculty of Dentistry, Department of Restorative Dentistry, Ankara University
| | | | - Özgür Irmak
- Faculty of Dentistry, Department of Restorative Dentistry, Near East University
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Shirani F, Kianipour A, Rahbar M. The Effect of Mechanical and Chemical Surface Preparation Methods on the Bond Strength in Repairing the Surface of Metal-Ceramic Crowns with Composite Resin: a Systematic Review and Meta-Analysis. MAEDICA 2020; 15:206-223. [PMID: 32952686 PMCID: PMC7482688 DOI: 10.26574/maedica.2020.15.2.206] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Subscribe] [Scholar Register] [Indexed: 11/03/2022]
Abstract
The aim of this study was to find the most effective surface preparation methods to enhance the bond strength between the composite resin and surface remaining from ceramic fracture. In this systematic review and meta-analysis, 39 studies were examined. The information related to the studies was extracted and categorized based on the type of the substrate material and applying or not applying thermal cycles (p<0.05). In the meta-analysis of substrate metal-ceramic samples without aging, application of air abrasion resulted in a significant increase of the bond strength to composite resin when using chemical compounds of the group without the mentioned functional monomers. Application of mechanical and chemical surface preparation methods can result in enhanced bond strength of the composite to the substrate material, which depends on the type of substrate material.
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Affiliation(s)
- Farzaneh Shirani
- Dental Material Research Center, Department of Operative Dentistry, School of Dentistry, Isfahan University of Medical Sciences, Isfahan, Iran, Orcide id: 0000-0001-9837-9642
| | - Azadeh Kianipour
- Department of Operative Dentistry, School of Dentistry, Kermanshah University of Medical Sciences, Kermanshah, Iran, Orcide id: 0000-0002-0151-9256
| | - Mahdi Rahbar
- Department of Operative and Esthetic Dentistry, Dental School, Ardabil University of Medical Sciences, Ardabil, Iran, Orcide id: 0000-0002-9049-8169
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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: 6] [Impact Index Per Article: 1.5] [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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14
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Soetojo A, Purnama D, Lunardhi CJ, Widjiastuti I. Cytotoxicity test of 4-methacryloxyethyl trimellitic anhydride–based dentine bonding material using acetone solution in dental pulp fibroblast. J Int Oral Health 2019. [DOI: 10.4103/jioh.jioh_32_19] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.2] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/20/2022] Open
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15
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Blonde JD, Roussy M, Luna R, Mahmoudian B, Gulli RA, Barker KC, Lau JC, Martinez-Trujillo JC. Customizable cap implants for neurophysiological experimentation. J Neurosci Methods 2018; 304:103-117. [PMID: 29694848 DOI: 10.1016/j.jneumeth.2018.04.016] [Citation(s) in RCA: 9] [Impact Index Per Article: 1.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/21/2017] [Revised: 04/09/2018] [Accepted: 04/20/2018] [Indexed: 11/16/2022]
Abstract
BACKGROUND Several primate neurophysiology laboratories have adopted acrylic-free, custom-fit cranial implants. These implants are often comprised of titanium or plastic polymers, such as polyether ether ketone (PEEK). Titanium is favored for its mechanical strength and osseointegrative properties whereas PEEK is notable for its lightweight, machinability, and MRI compatibility. Recent titanium/PEEK implants have proven to be effective in minimizing infection and implant failure, thereby prolonging experiments and optimizing the scientific contribution of a single primate. NEW METHOD We created novel, customizable PEEK 'cap' implants that contour to the primate's skull. The implants were created using MRI and/or CT data, SolidWorks software and CNC-machining. RESULTS Three rhesus macaques were implanted with a PEEK cap implant. Head fixation and chronic recordings were successfully performed. Improvements in design and surgical technique solved issues of granulation tissue formation and headpost screw breakage. COMPARISON WITH EXISTING METHODS Primate cranial implants have traditionally been fastened to the skull using acrylic and anchor screws. This technique is prone to skin recession, infection, and implant failure. More recent methods have used imaging data to create custom-fit titanium/PEEK implants with radially extending feet or vertical columns. Compared to our design, these implants are more surgically invasive over time, have less force distribution, and/or do not optimize the utilizable surface area of the skull. CONCLUSIONS Our PEEK cap implants served as an effective and affordable means to perform electrophysiological experimentation while reducing surgical invasiveness, providing increased strength, and optimizing useful surface area.
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Affiliation(s)
- Jackson D Blonde
- Cognitive Neurophysiology Laboratory, Department of Physiology and Pharmacology, Schulich School of Medicine and Dentistry, Robarts Research Institute and the Brain and Mind Institute, Western University, 1151 Richmond St. N., Room 7239, London, ON, N6A 5B7, Canada.
| | - Megan Roussy
- Cognitive Neurophysiology Laboratory, Department of Physiology and Pharmacology, Schulich School of Medicine and Dentistry, Robarts Research Institute and the Brain and Mind Institute, Western University, 1151 Richmond St. N., Room 7239, London, ON, N6A 5B7, Canada.
| | - Rogelio Luna
- Cognitive Neurophysiology Laboratory, Department of Physiology and Pharmacology, Schulich School of Medicine and Dentistry, Robarts Research Institute and the Brain and Mind Institute, Western University, 1151 Richmond St. N., Room 7239, London, ON, N6A 5B7, Canada.
| | - Borna Mahmoudian
- Cognitive Neurophysiology Laboratory, Department of Physiology and Pharmacology, Schulich School of Medicine and Dentistry, Robarts Research Institute and the Brain and Mind Institute, Western University, 1151 Richmond St. N., Room 7239, London, ON, N6A 5B7, Canada.
| | - Roberto A Gulli
- Cognitive Neurophysiology Laboratory, Department of Physiology and Pharmacology, Schulich School of Medicine and Dentistry, Robarts Research Institute and the Brain and Mind Institute, Western University, 1151 Richmond St. N., Room 7239, London, ON, N6A 5B7, Canada.
| | - Kevin C Barker
- Cognitive Neurophysiology Laboratory, Department of Physiology and Pharmacology, Schulich School of Medicine and Dentistry, Robarts Research Institute and the Brain and Mind Institute, Western University, 1151 Richmond St. N., Room 7239, London, ON, N6A 5B7, Canada; Neuronitek, 5846 William St., Lucan, ON, NOM 2J0, Canada.
| | - Jonathan C Lau
- Imaging Research Laboratories, Robarts Research Institute, Western University, 1151 Richmond St. N., London, ON, N6A 5B7, Canada; Division of Neurosurgery, Schulich School of Medicine and Dentistry, Department of Clinical Neurological Sciences, London Health Sciences Centre, University Hospital, Western University, London, ON, Canada.
| | - Julio C Martinez-Trujillo
- Cognitive Neurophysiology Laboratory, Department of Physiology and Pharmacology, Schulich School of Medicine and Dentistry, Robarts Research Institute and the Brain and Mind Institute, Western University, 1151 Richmond St. N., Room 7239, London, ON, N6A 5B7, Canada.
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16
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Nikhil V, Jaiswal S, Bajpai G. In vitro evaluation of the contact angle formed between AH Plus, Hybrid Root Seal and mineral trioxide aggregate Plus sealer with dentin and gutta-percha. J Conserv Dent 2018; 21:180-183. [PMID: 29674821 PMCID: PMC5890409 DOI: 10.4103/jcd.jcd_300_16] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.2] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/29/2022] Open
Abstract
Aim: The purpose of this study was evaluation and comparison of the contact angle of new root canal sealers – Hybrid Root Seal, mineral trioxide aggregate (MTA) Plus, and the conventional AH Plus sealer with dentin and gutta-percha. Materials and Methods: Two groups (Group D – dentin and Group G – gutta-percha) of 18 samples each were further randomly divided into 3 subgroups based on the type of sealer used, that is, AH Plus, Hybrid Root Seal, and MTA Plus. Contact angle measurement device (Phoenix 300) was used to measure the contact angle of the sealers on both dentin and gutta-percha. The results thus obtained were analyzed using one-way analysis of variance and Student's t-test. Results: MTA Plus recorded significantly higher values of contact angle on both the substrates, that is, dentin and gutta-percha when compared to AH Plus and Hybrid root canal sealer. The lowest value of contact angle in gutta-percha and dentin was shown by Hybrid root canal sealer and AH Plus, respectively. Conclusion: Both AH Plus and Hybrid Root Seal exhibited lower contact angle values, and hence, better wettability on both dentin and gutta-percha as compared to MTA Plus.
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Affiliation(s)
- Vineeta Nikhil
- Department of Conservative and Endodontics, Subharti Dental College, Meerut, Uttar Pradesh, India
| | - Shikha Jaiswal
- Department of Conservative and Endodontics, Subharti Dental College, Meerut, Uttar Pradesh, India
| | - Gauravi Bajpai
- Department of Conservative and Endodontics, Subharti Dental College, Meerut, Uttar Pradesh, India
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17
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Shinohara A, Taira Y, Sawase T. Effects of tributylborane-activated adhesive and two silane agents on bonding computer-aided design and manufacturing (CAD/CAM) resin composite. Odontology 2017; 105:437-442. [PMID: 28070702 DOI: 10.1007/s10266-016-0288-8] [Citation(s) in RCA: 12] [Impact Index Per Article: 1.7] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/31/2015] [Accepted: 11/07/2016] [Indexed: 11/28/2022]
Abstract
The present study was conducted to evaluate the effects of an experimental adhesive agent [methyl methacrylate-tributylborane liquid (MT)] and two adhesive agents containing silane on the bonding between a resin composite block of a computer-aided design and manufacturing (CAD/CAM) system and a light-curing resin composite veneering material. The surfaces of CAD/CAM resin composite specimens were ground with silicon-carbide paper, treated with phosphoric acid, and then primed with either one of the two silane agents [Scotchbond Universal Adhesive (SC) and GC Ceramic Primer II (GC)], no adhesive control (Cont), or one of three combinations (MT/SC, MT/GC, and MT/Cont). A light-curing resin composite was veneered on the primed CAD/CAM resin composite surface. The veneered specimens were subjected to thermocycling between 4 and 60 °C for 10,000 cycles, and the shear bond strengths were determined. All data were analyzed using analysis of variance and a post hoc Tukey-Kramer HSD test (α = 0.05, n = 8). MT/SC (38.7 MPa) exhibited the highest mean bond strengths, followed by MT/GC (30.4 MPa), SC (27.9 MPa), and MT/Cont (25.7 MPa), while Cont (12.9 MPa) and GC (12.3 MPa) resulted in the lowest bond strengths. The use of MT in conjunction with a silane agent significantly improved the bond strength. Surface treatment with appropriate adhesive agents was confirmed as a prerequisite for veneering CAD/CAM resin composite restorations.
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Affiliation(s)
- Ayano Shinohara
- Department of Applied Prosthodontics, Graduate School of Biomedical Sciences, Nagasaki University, 1-7-1 Sakamoto, Nagasaki, 852-8588, Japan
| | - Yohsuke Taira
- Department of Applied Prosthodontics, Graduate School of Biomedical Sciences, Nagasaki University, 1-7-1 Sakamoto, Nagasaki, 852-8588, Japan.
| | - Takashi Sawase
- Department of Applied Prosthodontics, Graduate School of Biomedical Sciences, Nagasaki University, 1-7-1 Sakamoto, Nagasaki, 852-8588, Japan
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Eldeniz AU, Shehata M, Högg C, Reichl FX. DNA double-strand breaks caused by new and contemporary endodontic sealers. Int Endod J 2015; 49:1141-1151. [DOI: 10.1111/iej.12577] [Citation(s) in RCA: 30] [Impact Index Per Article: 3.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/03/2014] [Accepted: 11/06/2015] [Indexed: 11/29/2022]
Affiliation(s)
- A. U. Eldeniz
- Department of Endodontics; Selcuk University; Konya Turkey
| | - M. Shehata
- Department of Operative/Restorative Dentistry, Periodontology and Pedodontics; Ludwig-Maximilians-University of Munich; Munich Germany
- Walther-Straub-Institute of Pharmacology and Toxicology; Ludwig-Maximilians-University of Munich; Munich Germany
| | - C. Högg
- Department of Operative/Restorative Dentistry, Periodontology and Pedodontics; Ludwig-Maximilians-University of Munich; Munich Germany
- Walther-Straub-Institute of Pharmacology and Toxicology; Ludwig-Maximilians-University of Munich; Munich Germany
| | - F. X. Reichl
- Department of Operative/Restorative Dentistry, Periodontology and Pedodontics; Ludwig-Maximilians-University of Munich; Munich Germany
- Walther-Straub-Institute of Pharmacology and Toxicology; Ludwig-Maximilians-University of Munich; Munich Germany
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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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20
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Nakagawa K, Saita M, Ikeda T, Hirota M, Park W, Lee MCI, Ogawa T. Biocompatibility of 4-META/MMA-TBB resin used as a dental luting agent. J Prosthet Dent 2015; 114:114-21. [PMID: 25882972 DOI: 10.1016/j.prosdent.2014.10.016] [Citation(s) in RCA: 23] [Impact Index Per Article: 2.6] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/19/2014] [Revised: 10/08/2014] [Accepted: 10/09/2014] [Indexed: 12/15/2022]
Abstract
STATEMENT OF PROBLEM The bonding and biological properties of currently used luting/cementing materials need to be improved. 4-Acryloyloxyethyl trimellitate anhydride/methyl methacrylate-tri-n-butylborane (4-META/MMA-TBB) resin is primarily used for splinting mobile teeth or treating fractured teeth. It undergoes moisture-resistant polymerization and bonds strongly to dentin and metals. PURPOSE The purpose of this in vitro study was to compare the biological and biochemical properties META/MMA-TBB resin with those of conventional polymethyl methacrylate (PMMA)-MMA resin and other currently used luting materials in order to determine whether it may be a viable dental luting agent. MATERIAL AND METHODS The degree of polymerization of 4-META/MMA-TBB resin, PMMA-MMA autopolymerizing resin, 10-methacryloyloxydecyl dihydrogen phosphate-dimethacrylate (MDP-DMA) adhesive resin, and a glass ionomer cement was measured by Fourier-transformed infrared spectroscopy. Free radical production during setting was evaluated by electron spin resonance (ESR) spectroscopy. Rat dental pulp cells cultured on these materials were examined for cell viability, attachment, proliferation, and functional phenotype. RESULTS The degree of polymerization of 4-META/MMA-TBB resin was 82% thirty minutes after preparation, compared to 66% for PMMA-MMA autopolymerizing resin. ESR spectroscopy revealed free radical production from 4-META/MMA-TBB resin and glass ionomer cement was equivalent 24 hours after preparation, with no spike in radical generation observed. In contrast, free radical production from PMMA-MMA and MDP-DMA adhesive resins was rapid and sustained and 10 to 20 times greater than that from 4-META/MMA-TBB. The percentage of viable dental pulp cells 24 hours after seeding was considerably higher on MDP-DMA and 4-META/MMA-TBB resin than on glass ionomer cement. Cell number, proliferation, and alkaline phosphatase activity were highest on 4-META/MMA-TBB resin and lowest on the glass ionomer cement. CONCLUSIONS 4-META/MMA-TBB resin is at least as biocompatible, and perhaps even more biocompatible, than other current luting materials, with fast, favorable, and nontoxic polymerization properties. Further in vivo and human studies of 4-META/MMA-TBB resin as a dental luting agent are warranted.
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Affiliation(s)
- Kaori Nakagawa
- Visiting scholar, Weintraub Center for Reconstructive Biotechnology, UCLA School of Dentistry, Los Angeles, Calif
| | - Makiko Saita
- Research associate, Department of Clinical Care Medicine, Kanagawa Dental College, Yokosuka, Japan
| | - Takayuki Ikeda
- Visiting scholar, Weintraub Center for Reconstructive Biotechnology, UCLA School of Dentistry, Los Angeles, Calif
| | - Makoto Hirota
- Visiting scholar, Weintraub Center for Reconstructive Biotechnology, UCLA School of Dentistry Los Angeles, Calif
| | - Wonhee Park
- Visiting scholar, Weintraub Center for Reconstructive Biotechnology, UCLA School of Dentistry, Los Angeles, Calif
| | - Masaichi Chang-Il Lee
- Professor, Department of Clinical Care Medicine, Kanagawa Dental College, Yokosuka, Japan
| | - Takahiro Ogawa
- Professor, Weintraub Center for Reconstructive Biotechnology, Division of Advanced Prosthodontics, UCLA School of Dentistry, Los Angeles, Calif.
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Giannini M, Makishi P, Ayres APA, Vermelho PM, Fronza BM, Nikaido T, Tagami J. Self-Etch Adhesive Systems: A Literature Review. Braz Dent J 2015; 26:3-10. [DOI: 10.1590/0103-6440201302442] [Citation(s) in RCA: 122] [Impact Index Per Article: 13.6] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/24/2014] [Accepted: 11/28/2014] [Indexed: 11/22/2022] Open
Abstract
This paper presents the state of the art of self-etch adhesive systems. Four topics are shown in this review and included: the historic of this category of bonding agents, bonding mechanism, characteristics/properties and the formation of acid-base resistant zone at enamel/dentin-adhesive interfaces. Also, advantages regarding etch-and-rinse systems and classifications of self-etch adhesive systems according to the number of steps and acidity are addressed. Finally, issues like the potential durability and clinical importance are discussed. Self-etch adhesive systems are promising materials because they are easy to use, bond chemically to tooth structure and maintain the dentin hydroxyapatite, which is important for the durability of the bonding.
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22
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Dias KC, Soares CJ, Steier L, Versiani MA, Abi Rached-Júnior FJ, Pécora JD, Correa Silva-Sousa YT, de Sousa-Neto MD. Influence of Drying Protocol with Isopropyl Alcohol on the Bond Strength of Resin-based Sealers to the Root Dentin. J Endod 2014; 40:1454-8. [DOI: 10.1016/j.joen.2014.02.021] [Citation(s) in RCA: 23] [Impact Index Per Article: 2.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/30/2013] [Revised: 02/08/2014] [Accepted: 02/19/2014] [Indexed: 10/25/2022]
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23
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Sun Y, Li YH, Fan MW. Push-out bond strength of self-adhesive methacrylate resin-based sealers to root dentin. JOURNAL OF HUAZHONG UNIVERSITY OF SCIENCE AND TECHNOLOGY. MEDICAL SCIENCES = HUA ZHONG KE JI DA XUE XUE BAO. YI XUE YING DE WEN BAN = HUAZHONG KEJI DAXUE XUEBAO. YIXUE YINGDEWEN BAN 2014; 34:108-113. [PMID: 24496688 DOI: 10.1007/s11596-014-1240-1] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.2] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 10/05/2013] [Revised: 12/10/2013] [Indexed: 11/26/2022]
Abstract
This study examined the adhesive strength of two self-adhesive methacrylate resin-based sealers (MetaSEAL and RealSeal SE) to root dentin and compared them with RealSeal and AH Plus in properties. A total of 48 extracted human single-rooted teeth were used to prepare the 0.9-mm thick longitudinal tooth slice (each per tooth). Standardized simulated canal spaces of uniform dimensions were prepared in the middle of radicular dentin. After treated with 5.25% sodium hypochlorite (NaOCl) and 17% EDTA, tooth slices were allocated randomly to four groups (n=12) in terms of different sealers used: MetaSEAL, RealSeal SE, RealSeal, and AH plus groups. The simulated canal spaces were obturated with different sealers in each group. There were 10 slabs with 20 simulated canal spaces (n=20) used in each group for push-out testing. The failure modes and the ultrastructures of fractured sealer-dentin interfaces were examined. The remaining 2 slabs in each group underwent partial demineralization for observation of the ultrastructure of resin tags. The results showed that the push-out bond strength was 12.01±4.66 MPa in MetaSEAL group, significantly higher than that in the other three groups (P<0.05). Moreover, no statistically significant differences were noted in the push-out bond strength between RealSeal SE (5.43±3.68 MPa) and AH Plus (7.34±2.83 MPa) groups and between RealSeal SE and RealSeal (2.93±1.76 MPa) groups (P>0.05). Mixed failures were predominant in the fractured sealer-dentin interfaces in MetaSEAL and AH Plus groups, while adhesive failures were frequently seen in RealSeal SE and RealSeal groups. In conclusion, after complete removal of the smear layer, MetaSEAL showed superior bond ability to root dentin. The RealSeal SE is applicable in clinical practice, with its adhesive strength similar to that of AH Plus. The self-adhesive methacrylate resin-based sealer holds promise for use in endodontic treatment.
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Affiliation(s)
- Yan Sun
- Key Laboratory for Oral Biomedical Engineering of Ministry of Education, School and Hospital of Stomatology, Wuhan University, Wuhan, 430079, China
| | - Yu-Hong Li
- Key Laboratory for Oral Biomedical Engineering of Ministry of Education, School and Hospital of Stomatology, Wuhan University, Wuhan, 430079, China
| | - Ming-Wen Fan
- Key Laboratory for Oral Biomedical Engineering of Ministry of Education, School and Hospital of Stomatology, Wuhan University, Wuhan, 430079, China.
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TAIRA Y, IMAI Y. Review of methyl methacrylate (MMA)/tributylborane (TBB)-initiated resin adhesive to dentin. Dent Mater J 2014; 33:291-304. [DOI: 10.4012/dmj.2013-320] [Citation(s) in RCA: 22] [Impact Index Per Article: 2.2] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/23/2022]
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One-bottle self-etching adhesives applied to dentine air-abraded using bioactive glasses containing polyacrylic acid: An in vitro microtensile bond strength and confocal microscopy study. J Dent 2012; 40:896-905. [DOI: 10.1016/j.jdent.2012.07.004] [Citation(s) in RCA: 29] [Impact Index Per Article: 2.4] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/03/2012] [Revised: 06/19/2012] [Accepted: 07/10/2012] [Indexed: 11/21/2022] Open
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Sanohkan S, Urapepon S, Harnirattisai C, Sirisinha C, Sunintaboon P. Shear bond strength between autopolymerizing acrylic resin and Co-Cr alloy using different primers. Dent Mater J 2012; 31:765-71. [PMID: 23037839 DOI: 10.4012/dmj.2012-051] [Citation(s) in RCA: 15] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/23/2022]
Abstract
This study aimed to examine the shear bond strength between cobalt chromium alloy and autopolymerizing acrylic resin using experimental primers containing 5, 10, and 15 wt% of 4-methacryloxyethyl trimellitic anhydride or 1, 2, and 3 wt% of 3-methacryloxypropyl-trimethoxysilane comparison to 5 commercial primers (ML primers, Alloy primer, Metal/Zirconia primer, Monobond S, and Monobond plus). Sixty alloy specimens were sandblasted and treated with each primer before bonded with an acrylic resin. The control group was not primed. The shear bond strengths were tested and statistically compared. Specimens treated with commercial primers significantly increased the shear bond strength of acrylic resin to cobalt chromium alloy (p<0.05). The highest shear bond strength was found in the Alloy primer group. Among experimental group, using 10 wt% of 4-methacryloxyethyl trimellitic anhydride -or 2 wt% of 3-methacryloxypropyltrimethoxysilane enhanced highest shear bond strength. The experimental and commercial primers in this study all improved bonding of acrylic resin to cobalt chromium alloy.
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Affiliation(s)
- Sasiwimol Sanohkan
- Dental Biomaterials Program, Faculty of Dentistry, Mahidol University, Yothi Rajthevee Rd., Bangkok, Thailand
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Cha MH, Choi J, Choi BG, Park K, Kim IH, Jeong B, Han DK. Synthesis and characterization of novel thermo-responsive F68 block copolymers with cell-adhesive RGD peptide. J Colloid Interface Sci 2011; 360:78-85. [DOI: 10.1016/j.jcis.2011.04.041] [Citation(s) in RCA: 31] [Impact Index Per Article: 2.4] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/17/2011] [Revised: 04/08/2011] [Accepted: 04/09/2011] [Indexed: 10/18/2022]
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Marin-Bauza GA, Rached-Junior FJA, Souza-Gabriel AE, Sousa-Neto MD, Miranda CES, Silva-Sousa YTC. Physicochemical Properties of Methacrylate Resin–based Root Canal Sealers. J Endod 2010; 36:1531-6. [DOI: 10.1016/j.joen.2010.05.002] [Citation(s) in RCA: 53] [Impact Index Per Article: 3.8] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/05/2010] [Revised: 05/07/2010] [Accepted: 05/19/2010] [Indexed: 11/27/2022]
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29
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Costa JA, Rached-Júnior FA, Souza-Gabriel AE, Silva-Sousa YTC, Sousa-Neto MD. Push-out strength of methacrylate resin-based sealers to root canal walls. Int Endod J 2010; 43:698-706. [DOI: 10.1111/j.1365-2591.2010.01766.x] [Citation(s) in RCA: 34] [Impact Index Per Article: 2.4] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/29/2022]
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30
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Stoll R, Thull P, Hobeck C, Yüksel S, Jablonski-Momeni A, Roggendorf MJ, Frankenberger R. Adhesion of Self-adhesive Root Canal Sealers on Gutta-Percha and Resilon. J Endod 2010; 36:890-3. [DOI: 10.1016/j.joen.2010.01.004] [Citation(s) in RCA: 11] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/20/2009] [Revised: 12/21/2009] [Accepted: 01/03/2010] [Indexed: 11/29/2022]
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Yang B, Barloi A, Kern M. Influence of air-abrasion on zirconia ceramic bonding using an adhesive composite resin. Dent Mater 2010; 26:44-50. [PMID: 19766300 DOI: 10.1016/j.dental.2009.08.008] [Citation(s) in RCA: 121] [Impact Index Per Article: 8.6] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/18/2009] [Revised: 07/09/2009] [Accepted: 08/21/2009] [Indexed: 12/13/2022]
Abstract
OBJECTIVES Air-abrasion as bonding conditioning method for zirconia ceramic might compromise the mechanical strength of zirconia restorations. The purpose of this study was to evaluate the influence of surface conditioning parameters, i.e., air-abrasion with reduced pressure or no air-abrasion and priming with adhesive primers on the long-term resin bond strength to zirconia ceramic. METHODS Zirconia ceramic disks were polished with 600 grit abrasive paper. Plexiglas tubes filled with composite resin were bonded with RelyX Unicem luting composite resin to the conditioned zirconia disks. Three surface conditions (unconditioned, air-born particle abrasion at 0.05 or 0.25 MPa) and four priming conditions (no priming, priming with Metal/Zirconia Primer, priming with Alloy Primer, priming with Clearfil Ceramic Primer) were tested. Sixteen specimens of each combination were bonded. Subgroups of eight bonded samples were stored in water either for 3 days or 150 days with 37,500 thermocycling. Tensile bond strengths (TBSs) were determined with a universal testing machine at a crosshead speed of 2mm/min. RESULTS Without priming, RelyX Unicem showed durable bond strength to 0.25 MPa airborne-particle abraded ceramic. When combined with 10-methacryloyloxy-decyl dihydrogenphosphate containing primers, air-abrasion resulted in a durable TBS to zirconia ceramic even at a reduced abrasion pressure. However, combined with Metal/Zirconia Primer air-abrasion did not provide a durable TBS to zirconia ceramic. SIGNIFICANCE Using a self-adhesive luting resin composite (RelyX Unicem), air-abrasion at 0.25 MPa or the combination of low pressure air-abrasion and priming with MDP-containing primers seems to be useful to achieve durable long-term bonding to zirconia ceramic.
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Affiliation(s)
- B Yang
- Department of Prosthodontics, Propaedeutics and Dental Materials, Dental School, Christian-Albrechts University at Kiel, Arnold-Heller-Str. 16, 24105 Kiel, Germany
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The influence of PMMA in 4-META/MMA-TBB resin on the degree of conversion and bonding durability to titanium. MATERIALS SCIENCE & ENGINEERING. C, MATERIALS FOR BIOLOGICAL APPLICATIONS 2010. [DOI: 10.1016/j.msec.2009.10.008] [Citation(s) in RCA: 6] [Impact Index Per Article: 0.4] [Reference Citation Analysis] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 01/08/2023]
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Ayad MF, Johnston WM, Rosenstiel SF. Influence of tooth preparation taper and cement type on recementation strength of complete metal crowns. J Prosthet Dent 2009; 102:354-61. [DOI: 10.1016/s0022-3913(09)60192-x] [Citation(s) in RCA: 19] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/20/2022]
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Push-out bond strength and SEM evaluation of new polymeric root canal fillings. ACTA ACUST UNITED AC 2009; 107:879-85. [DOI: 10.1016/j.tripleo.2009.01.023] [Citation(s) in RCA: 26] [Impact Index Per Article: 1.7] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/12/2008] [Revised: 12/21/2008] [Accepted: 01/12/2009] [Indexed: 11/24/2022]
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Santini A, Miletic V. Comparison of the hybrid layer formed by Silorane adhesive, one-step self-etch and etch and rinse systems using confocal micro-Raman spectroscopy and SEM. J Dent 2008; 36:683-91. [PMID: 18550251 DOI: 10.1016/j.jdent.2008.04.016] [Citation(s) in RCA: 58] [Impact Index Per Article: 3.6] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/22/2008] [Revised: 04/25/2008] [Accepted: 04/28/2008] [Indexed: 11/25/2022] Open
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Minami H, Suzuki S, Minesaki Y, Kurashige H, Tanaka T. In Vitro Evaluation of the Effect of Thermal and Mechanical Fatigues on the Bonding of an Autopolymerizing Soft Denture Liner to Denture Base Materials Using Different Primers. J Prosthodont 2008; 17:392-400. [DOI: 10.1111/j.1532-849x.2008.00304.x] [Citation(s) in RCA: 6] [Impact Index Per Article: 0.4] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/29/2022] Open
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Van Landuyt KL, Snauwaert J, De Munck J, Peumans M, Yoshida Y, Poitevin A, Coutinho E, Suzuki K, Lambrechts P, Van Meerbeek B. Systematic review of the chemical composition of contemporary dental adhesives. Biomaterials 2007; 28:3757-85. [PMID: 17543382 DOI: 10.1016/j.biomaterials.2007.04.044] [Citation(s) in RCA: 729] [Impact Index Per Article: 42.9] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/16/2007] [Accepted: 04/26/2007] [Indexed: 11/22/2022]
Abstract
Dental adhesives are designed to bond composite resins to enamel and dentin. Their chemical formulation determines to a large extent their adhesive performance in clinic. Irrespective of the number of bottles, an adhesive system typically contains resin monomers, curing initiators, inhibitors or stabilizers, solvents and sometimes inorganic filler. Each one of these components has a specific function. The aim of this article is to systematically review the ingredients commonly used in current dental adhesives as well as the properties of these ingredients. This paper includes an extensive table with the chemical formulation of contemporary dental adhesives.
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Affiliation(s)
- Kirsten L Van Landuyt
- Leuven BIOMAT Research Cluster, Department of Conservative Dentistry, School of Dentistry, Oral Pathology and Maxillo-Facial Surgery, Catholic University of Leuven, Kapucijnenvoer 7, B 3000 Leuven, Belgium
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Krunić N, Tonić G. [Impact of various luting cements on the fixed dentures bonding strength]. VOJNOSANIT PREGL 2006; 63:293-6. [PMID: 16605196 DOI: 10.2298/vsp0603293k] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.1] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/27/2022] Open
Abstract
BACKGROUND/AIM Various luting cements are used to fix dental crowns to prepared teeth, and should provide an adhesive bond to the tooth structure giving reliable retention. The aim of this study was to establish in vitro which type of the tested luting cement provided the strongest adhesive bond of the prepared teeth to the fixed denture. METHODS Testing was carried out on the sample of 100 intact human premolars extracted for orthodontic reasons. The preparation of the teeth was performed by a heavy-duty machine. The surfaces of the prepared teeth were mathematically calculated. Dental crowns from the Nickel-Chromium-Molybenum (Ni-Cr-Mo) alloy were made in a standard fashion, and fixed to prepared teeth (two samples of each group) with 5 different types of luting cements. The strength of force applyed to separate the cast crowns from the prepared teeth was measured by an electronic dynamometer, after 7 days. RESULTS The obtained results revealed the connection between the type of luting cement and the values of retention power. The best adhesive bond under the constant convergence angle of the prepared teeth was provided by the resin cement. CONCLUSION When choosing a luting cement for fixing dental crowns to prepared teeth, the advantage should be given to the resin cement in case the glassionomers are not available.
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Affiliation(s)
- Nebojsa Krunić
- Klinika za stomatologiju, Odeljenje za stomatolosku protetiku, Nis
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Minami H, Suzuki S, Ohashi H, Minesaki Y, Tanaka T. In vitro evaluation of the bonding of auto-polymerizing soft denture liner to cobalt-chromium alloy. J Oral Rehabil 2005; 32:454-60. [PMID: 15899025 DOI: 10.1111/j.1365-2842.2005.01428.x] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.2] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/26/2022]
Abstract
This study evaluated the effects of surface pre-treatments on the bonding of auto-polymerizing silicone soft denture liner to a Co-Cr alloy denture base after cyclic thermal stressing. The bonding surfaces of Co-Cr alloy cylinders (8 mm diameter and 4 mm high) were polished with a 600-grit silicon carbide paper. The bonding surfaces received one of three pre-treatments, which included either the application of a metal primer, a metal primer after air abrasion, or a resin primer after adhesive resin coating. Tensile specimens were fabricated by polymerizing a 2-mm thickness of soft denture liner between a pair of pre-treated denture base cylinders. Failure loads were measured by tensile testing after subjecting the specimen to 0, 5, 10, 20, and 30 thousand thermal cycles. Seven specimens were fabricated for 15 groups, including three pre-treatments and five thermal cycle groups. Failure loads of resin-bonded specimens, which were formerly reported, were used as references. All data were statistically analysed by two-way anova and Bonferroni test at the 95% confidence level. Adhesive resin coating of the metal surface was effective in enhancing the failure loads up to 5000 thermal cycles. However, failure loads of all metal-bonded groups were significantly lower than those of resin-bonded groups at all thermal cycling intervals. The results of this in vitro study implied that polymerizing adhesive resin on the Co-Cr alloy might be a promising method, when the clinicians need to acquire improved bonding of an auto-polymerizing soft denture liner to Co-Cr alloy denture bases.
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Affiliation(s)
- H Minami
- Department of Fixed Prosthodontics, Kagoshima University Dental School, Kagoshima-shi, Kagoshima, Japan.
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Zidan O, Ferguson GC. The retention of complete crowns prepared with three different tapers and luted with four different cements. J Prosthet Dent 2003; 89:565-71. [PMID: 12815350 DOI: 10.1016/s0022-3913(03)00182-3] [Citation(s) in RCA: 87] [Impact Index Per Article: 4.1] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/27/2022]
Abstract
STATEMENT OF PROBLEM The role of adhesive properties of cements on the retentive strength of crowns with different degrees of taper is not clear. PURPOSE This study evaluated the retention of full crowns prepared with 3 different tapers and cemented with 2 conventional and 2 adhesive resin cements. MATERIAL AND METHODS One hundred twenty sound human molar teeth were assigned randomly to 1 of 12 groups, (n=10). The groups represented the 4 cements: zinc phosphate (Fleck's), a conventional glass ionomer (Ketac-Cem); 2 adhesive resin cements (C&B Metabond and Panavia); and 3 tapers of 6-degrees, 12-degrees, and 24-degrees within each cement. Crowns were cast with a high noble alloy. The 6-degree taper was considered the control within each cement group. Retention was measured (MPa) by separating the metal crowns from the prepared teeth under tension on a universal testing machine. Analysis of variance was used to test the main effects on the retentive strength of full crowns, namely cements, tapers, and failure modes. The Fisher's multiple comparison test was used to evaluate the source of the differences. The chi(2) analyses were used to examine the relationships between failure types, cements, and tapers. All statistical tests were conducted at alpha=.05. RESULTS There was a significant difference in the main effect cement (P<.0001) and taper (P=.0002). The mean retentive strength values of both Fleck's and Ketac-Cem were significantly lower than the mean retentive strength values of both C&B Metabond and Panavia (P<.0001). The retention of crowns prepared with 6-degree taper was not significant from the 12-degree taper (P=.0666). The difference in retention was significant between the 6-degree taper and the 24-degree taper (P<.0001) and between 12-degree taper and 24-degree taper (P=.0178). The types of failure were adhesive in the cement (65%), cohesive in the tooth (31%), and assembly failure (fracture of embedding resin) (4%). The type of failure was dependent on the degree of taper (P<.0001) and on the type of cement (P<.0042). CONCLUSION Within the limitations of this study, the retentive values of the adhesive resins at 24-degree taper were 20% higher than the retentive values of the conventional cements at 6-degree taper. The use of resin luting agents yielded retention values that were double the values of zinc phosphate or conventional glass ionomer cement.
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Affiliation(s)
- Omar Zidan
- School of Dentistry, University of Minnesota, Minneapolis, USA.
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