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Yazigi C, Alawi S, Wille S, Lehmann F, Kern M. Durability of Resin Bonding to Dental 3Y-TZP Zirconia Using Different Adhesive Systems. MATERIALS (BASEL, SWITZERLAND) 2024; 17:424. [PMID: 38255594 PMCID: PMC10820740 DOI: 10.3390/ma17020424] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Received: 11/13/2023] [Revised: 12/22/2023] [Accepted: 01/11/2024] [Indexed: 01/24/2024]
Abstract
This laboratory study was conducted to evaluate and compare the resin bond strength of different adhesive resin systems in different combinations and the durability of their bonds with zirconia ceramic. MATERIALS AND METHODS One hundred and twenty-eight specimens were milled from 3Y-TZP zirconia ceramic. The bonding surfaces of all disks were wet polished, steam cleaned, airborne-particle abraded and ultrasonically cleaned in 99% isopropanol. The specimens were randomly divided into four main groups according to the applied resin system; two conventional and two self-adhesive systems were used. Each group was further subdivided into two subgroups; the first was conditioned with the specified primer for conventional luting resins or not conditioned for the self-adhesive systems, whereas the second subgroup of each was conditioned with the same phosphate monomer-containing primer (Alloy Primer). The zirconia specimens were adhesively bonded, using the allocated luting resin, to plexiglass tubes filled with self-curing composite resin (Clearfil FII). Half of the specimens of each subgroup were stored in distilled water at 37 °C for 3 days, whereas the other half were subjected to artificial aging, 150 days of storage and additional thermal cycling. Thereafter, all specimens were subjected to TBS testing using a universal testing machine. Statistical analysis was conducted using two-way ANOVA followed by separate one-way ANOVAs. The Games-Howell post-hoc test was applied for pairwise comparisons. RESULTS All specimens survived storage with thermal cycling. The mean TBS values ranged from a minimum of 43.4 ± 5.0 MPa to a maximum of 66.4 ± 3.5 after 3 days and from a minimum of 13.6 ± 2.5 MPa to a maximum of 50.1 ± 9.4 MPa after 150 days. CONCLUSIONS Artificial aging had a significantly negative effect on all test groups. The chosen adhesive-resin system had a significant effect on the resulting TBS values. The highest TBS values were achieved for the self-adhesive luting resin G-Cem One but were statistically comparable to the results obtained for the dual-cure luting resin G-Cem LinkForce.
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Unterschütz L, Fuchs F, Mayer LA, Koenig A, Challakh N, Schulz-Kornas E, Ziebolz D, Hahnel S. Influence of dental prophylaxis procedures on the tooth veneer interface in resin-based composite and polymer-infiltrated ceramic veneer restorations: an in vitro study. Clin Oral Investig 2023; 27:2595-2607. [PMID: 36502509 PMCID: PMC10264478 DOI: 10.1007/s00784-022-04816-z] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/13/2022] [Accepted: 11/30/2022] [Indexed: 12/14/2022]
Abstract
OBJECTIVES The aim of this study was to investigate the influence of dental prophylaxis cleaning procedures and artificial aging on veneers in human teeth. The external marginal and internal tooth veneer as well as the restoration surfaces were examined. MATERIAL AND METHODS Thirty-two extracted premolars were restored with resin-based composite (RBC) and polymer-infiltrated ceramic network (PICN) veneers. Artificial aging by alternating thermocycling and subsequent prophylaxis procedure (glycine-based powder air polishing or ultrasonic scaling) was conducted for five consecutive cycles. The external marginal interface was examined by height profile measurements and the internal interface was investigated using micro X-ray computed tomography. In addition, the surface texture of the veneer surface was analyzed using confocal laser scanning microscopy. RESULTS The application of both prophylaxis procedures resulted in a deepening of the marginal interface (10 µm ± 8 µm) for materials. Furthermore, the internal interface of PICN restorations showed marginal gaps after both treatments and artificial aging (16 µm ± 3 µm). In contrast to the RBC specimens, a significant increase in surface roughness was identified for PICN veneers after ultrasonic scaling. CONCLUSIONS The marginal and internal interface regions in veneers fabricated from PICN and RBC were affected by prophylaxis procedures. Furthermore, it may result in increased veneer surface roughness, especially in PICN and after ultrasonic scaling, which might affect bioadhesion and longevity. CLINICAL RELEVANCE After dental prophylaxis procedures, examination of the marginal and the internal interface as well as the veneer surface provides a precise insight into damage mechanisms and offers an assessment of longevity.
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Affiliation(s)
- Lena Unterschütz
- Department of Prosthetic Dentistry and Dental Material Science, Leipzig University, Liebigstraße 12, 04103, Leipzig, Germany
| | - Florian Fuchs
- Department of Prosthetic Dentistry and Dental Material Science, Leipzig University, Liebigstraße 12, 04103, Leipzig, Germany.
| | - Laura-Antonia Mayer
- Department of Prosthetic Dentistry and Dental Material Science, Leipzig University, Liebigstraße 12, 04103, Leipzig, Germany
| | - Andreas Koenig
- Department of Prosthetic Dentistry and Dental Material Science, Leipzig University, Liebigstraße 12, 04103, Leipzig, Germany
| | - Nadia Challakh
- Department of Cariology, Endodontology and Periodontology, Leipzig University, Liebigstraße 12, 04103, Leipzig, Germany
| | - Ellen Schulz-Kornas
- Department of Cariology, Endodontology and Periodontology, Leipzig University, Liebigstraße 12, 04103, Leipzig, Germany
| | - Dirk Ziebolz
- Department of Cariology, Endodontology and Periodontology, Leipzig University, Liebigstraße 12, 04103, Leipzig, Germany
| | - Sebastian Hahnel
- Department of Prosthetic Dentistry, UKR University Hospital Regensburg, Franz-Josef-Strauß-Allee 11, 93053, Regensburg, Germany
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Han SH, Shimada Y, Sadr A, Tagami J, Tabata T, Nakagawa H, Yang SE. Effects of Material Thickness and Pretreatment on the Interfacial Gap of Translucent Zirconia Restorations with Self-adhesive Resin Cement. Oper Dent 2022; 47:535-548. [DOI: 10.2341/21-024-l] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Accepted: 10/16/2021] [Indexed: 11/07/2022]
Abstract
SUMMARY
Purpose
The first objective was to determine if the dual-curing of self-adhesive resin cement (SAC) with reduced light penetrating through zirconia had an effect on interfacial gap of zirconia restorations. The second purpose was to examine whether pretreatment methods for universal adhesive affected interfacial gap. The last aim was to compare the microhardness of SAC polymerized under different zirconia thicknesses.
Methods and Materials
This study evaluated self-adhesive resin cement (RelyX U200, 3M ESPE) after different pretreatment with universal adhesive (Single Bond Universal, 3M ESPE) under different polymerization conditions. CAD/CAM inlay cavities were prepared on extracted third molars. Translucent zirconia restorations were milled using Katana UTML (Kuraray). The teeth were divided into three groups: Groups I, II, and III in which the restoration thicknesses were 1, 2, and 3 mm. Each Group had three subgroups according to different pretreatment methods. For subgroup-1, no pretreatment was done on the prepared cavity. For subgroup-2, universal adhesive was applied and light-cured before cement placement (precure method). For subgroup-3, universal adhesive was applied; however, light-curing was done after cement placement (cocure method). After thermo-cycling, the interfacial gap at the restoration-tooth interface was investigated using swept-source optical coherence tomography imaging. Finally, microhardness was measured for SAC under different zirconia thicknesses. For statistical analysis, the interfacial gap was analyzed using two-way analysis of variance (ANOVA) to test the effect of cavity depth and pretreatment. In terms of each cavity depth and pretreatment, the interfacial gap was compared using one-way ANOVA and Scheffe’s test. One-way ANOVA was also performed for comparison of the Vickers hardness results.
Results
Different thicknesses of the restoration resulted in differences in interfacial gaps except between the precure method of Groups I and II (p<0.05). The effect of universal adhesive pretreatment was different depending on the restoration thickness with exceptions in Groups I and III (p<0.05). Vickers hardness number decreased as the low radiant exposure of light was applied (p<0.05).
Conclusion
Interfacial gap of zirconia restorations can differ depending on the material thickness, pretreatment, and activation mode. Reduced light intensity penetrating through zirconia may lead to higher interfacial gap percentage and lower microhardness of the self-adhesive resin cement. Application of a universal adhesive showed similar or reduced interfacial gaps in the cement space.
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Affiliation(s)
- S-H Han
- Seung-Hoon Han, DDS, PhD, assistant professor, Department of Conservative Dentistry, St Vincent Hospital, College of Medicine, The Catholic University of Korea
| | - Y Shimada
- Yasushi Shimada, DDS, PhD, professor, Department of Cariology and Operative Dentistry, Graduate School of Medical and Dental Sciences, Tokyo Medical and Dental University
| | - A Sadr
- Alireza Sadr, DDS, PhD, associate professor, Department of Restorative Dentistry, School of Dentistry, University of Washington
| | - J Tagami
- Junji Tagami, DDS, PhD, professor emeritus, Department of Cariology and Operative Dentistry, Graduate School of Medical and Dental Sciences, Tokyo Medical and Dental University
| | - T Tabata
- Tomoko Tabata, DDS, PhD, assistant professor, Department of Cariology and Operative Dentistry, Graduate School of Medical and Dental Sciences, Tokyo Medical and Dental University
| | - H Nakagawa
- Hisaichi Nakagawa, DDS, PhD, assistant professor, Department of Cariology and Operative Dentistry, Graduate School of Medical and Dental Sciences, Tokyo Medical and Dental University
| | - S-E Yang
- *Sung-Eun Yang, DDS, PhD, professor, Department of Conservative Dentistry, Seoul St Mary’s Hospital, College of Medicine, The Catholic University of Korea, Seoul, Korea
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Mine A, Nikaido T, Matsumoto M, Takagaki T, Ishida M, Ban S, Yamanaka A, Takaishi M, Yumitate M, Hagino R, Van Meerbeek B, Yatani H. Status of decontamination methods after using dentin adhesion inhibitors on indirect restorations: An integrative review of 19 publications. JAPANESE DENTAL SCIENCE REVIEW 2021; 57:147-153. [PMID: 34522239 PMCID: PMC8424590 DOI: 10.1016/j.jdsr.2021.08.001] [Citation(s) in RCA: 7] [Impact Index Per Article: 2.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/14/2021] [Revised: 08/02/2021] [Accepted: 08/06/2021] [Indexed: 11/15/2022] Open
Abstract
The purpose of this review was to assess the literature regarding the decontamination of resin cement before the luting procedure in order to provide clinicians with a comparative overview of decontamination effects. A total of 19 articles were selected for inclusion in this review. The results indicated that bonding effectiveness is reduced due to residual adhesion inhibitors such as saliva, blood, hemostatic agents, and temporary/provisional cement. Self-etching and self-adhesive systems tend to be more negatively affected by adhesion inhibitors than do etch and rinse systems. Cleaning with an ultrasonic scaler or rotating brush have demonstrated conflicting effects in several studies. Some studies have reported that phosphoric acid has negative effects and recommend mild acid for decontamination. The application of phosphoric acid followed by sodium hypochlorite has been shown to help avoid negative effects. Alumina blasting has been investigated as a mechanical cleaning method in a relatively large number of experiments, most of which have confirmed its effectiveness. An intraoral cleaner containing functional monomers that has become commercially available in recent years is a promising method in clinical practice because it can easily and effectively remove temporary adhesive material. In addition, adhesion inhibitors can be easily removed from resin-coated dentin surfaces.
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Affiliation(s)
- Atsushi Mine
- Department of Fixed Prosthodontics, Osaka University Graduate School of Dentistry, Osaka 565-0871, Japan
| | - Toru Nikaido
- Department of Operative Dentistry, Division of Oral Functional Science and Rehabilitation, School of Dentistry, Asahi University, Gifu 501-0296, Japan
| | - Mariko Matsumoto
- BIOMAT & University Hospitals Leuven, Department of Oral Health Sciences, KU Leuven (University of Leuven), Leuven 3000, Belgium.,Department of Restorative Dentistry, Hokkaido University Graduate School of Dental Medicine, Hokkaido 060-8586, Japan
| | - Tomohiro Takagaki
- Department of Operative Dentistry, Division of Oral Functional Science and Rehabilitation, School of Dentistry, Asahi University, Gifu 501-0296, Japan
| | - Masaya Ishida
- Department of Fixed Prosthodontics, Osaka University Graduate School of Dentistry, Osaka 565-0871, Japan
| | - Shintaro Ban
- Department of Fixed Prosthodontics, Osaka University Graduate School of Dentistry, Osaka 565-0871, Japan
| | - Azusa Yamanaka
- Department of Fixed Prosthodontics, Osaka University Graduate School of Dentistry, Osaka 565-0871, Japan
| | - Munechika Takaishi
- Department of Fixed Prosthodontics, Osaka University Graduate School of Dentistry, Osaka 565-0871, Japan
| | - Masahiro Yumitate
- Department of Fixed Prosthodontics, Osaka University Graduate School of Dentistry, Osaka 565-0871, Japan
| | - Ryosuke Hagino
- Department of Fixed Prosthodontics, Osaka University Graduate School of Dentistry, Osaka 565-0871, Japan
| | - Bart Van Meerbeek
- BIOMAT & University Hospitals Leuven, Department of Oral Health Sciences, KU Leuven (University of Leuven), Leuven 3000, Belgium
| | - Hirofumi Yatani
- A professor emeritus of Osaka University, Osaka 565-0871, Japan
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Kawashima M, Yamaguchi S, Mine A, Li H, Imazato S. Novel testing method to evaluate the mechanical strength of self-adhesive resin cements with reflection of cement thickness. Dent Mater J 2021; 40:1235-1242. [PMID: 34078779 DOI: 10.4012/dmj.2020-456] [Citation(s) in RCA: 6] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/23/2022]
Abstract
This study aimed to propose an evaluation method for testing the mechanical strength of film-formed self-adhesive resin cements (SARCs) while reflecting cement layer thickness. Three commercially available dual-cure type SARCs were used for tensile and shear tests using specimens with varying thicknesses (0.05, 0.2, and 0.4 mm). There were no significant differences in tensile strengths among the various specimen thicknesses. In the shear test, there was a significant decrease in the strength with a reduction in specimen thickness. Stress distribution and fracture patterns were analyzed using in silico nonlinear dynamic finite element analysis. Finite element analysis demonstrated that stress distribution on the specimen surface was homogeneous even with different thicknesses in the tensile test, whereas it was inhomogeneous and induced different fracture patterns on the 0.05-mm-thick specimen in the shear test. These results suggest that the tensile test is useful for testing the mechanical strength of film-formed SARCs.
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Affiliation(s)
- Mitsunobu Kawashima
- Department of Biomaterials Science, Osaka University Graduate School of Dentistry.,Kuraray Noritake Dental Inc
| | - Satoshi Yamaguchi
- Department of Biomaterials Science, Osaka University Graduate School of Dentistry
| | - Atsushi Mine
- Department of Fixed Prosthodontics, Osaka University Graduate School of Dentistry
| | - Hefei Li
- Department of Biomaterials Science, Osaka University Graduate School of Dentistry
| | - Satoshi Imazato
- Department of Biomaterials Science, Osaka University Graduate School of Dentistry
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Kawashima M, Mine A, Yamaguchi S, Imazato S. Development of novel measurement method for consistency of resin cements. Dent Mater J 2021; 40:1063-1067. [PMID: 33883356 DOI: 10.4012/dmj.2020-396] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [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 develop a new method to evaluate the consistency of resin cements by modeling the operation of setting a crown. First, the weight of the resin cements and the inner surface area of the crown were measured to configure the conditions for consistency evaluation using a model abutment tooth and a model crown. As the evaluation method, a 200 mm2 contact surface area of a glass plate was placed on top of 30.0 mg of resin cement paste, and a pressure of 10.0 N was applied to the glass plate. When the paste was spread over the entire bottom surface of the glass plate, it was designated a "Pass". A "Pass" result was obtained for all resin cements tested and a "Fail" result for all resin composites, indicating the usefulness of the new method for assessing cement flowability when setting a crown.
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Affiliation(s)
- Mitsunobu Kawashima
- Department of Biomaterials Science, Osaka University Graduate School of Dentistry.,Kuraray Noritake Dental Inc
| | - Atsushi Mine
- Department of Fixed Prosthodontics, Osaka University Graduate School of Dentistry
| | - Satoshi Yamaguchi
- Department of Biomaterials Science, Osaka University Graduate School of Dentistry
| | - Satoshi Imazato
- Department of Biomaterials Science, Osaka University Graduate School of Dentistry
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7
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de Kok P, Kanters GF, Kleverlaan CJ. Fatigue resistance of composite resins and glass-ceramics on dentin and enamel. J Prosthet Dent 2020; 127:593-598. [DOI: 10.1016/j.prosdent.2020.11.002] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/30/2019] [Revised: 11/05/2020] [Accepted: 11/05/2020] [Indexed: 11/16/2022]
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Han SH, Shimada Y, Sadr A, Tagami J, Yang SE. Interfacial Evaluation of CAD/CAM Resin Inlays on the Cavity Floor Using Swept-source Optical Coherence Tomography. Oper Dent 2020; 45:664-676. [PMID: 32997740 DOI: 10.2341/19-141-l] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Accepted: 10/07/2019] [Indexed: 11/23/2022]
Abstract
CLINICAL RELEVANCE When a resin nanoceramic inlay is cemented using self-adhesive cement, a universal dentin adhesive can be applied to the prepared cavity. The application of the adhesive before self-adhesive cement placement provides similar or better interfacial adaptation than without the adhesive. SUMMARY Purpose: The first objective of this study was to determine whether the luting material used for computer-aided design and computer-aided manufacture resin nanoceramic inlays affected interfacial adaptation. The second objective was to investigate whether application of a universal dentin adhesive before cementation affected interfacial adaptation. The final objective was to compare the inlay-side and dentin-side interfaces in the cement space.Methods and Materials: Seventy-four class I cavities were prepared on extracted human third molars. Cavities were optically scanned, and resin nanoceramic inlays were milled using Lava Ultimate blocks (3M ESPE). For the control groups, the fabricated inlays were cemented using Panavia V5 (Kuraray Noritake) or FujiCem 2 (GC). For the experimental groups, the teeth were randomly divided into groups I and II. Group I contained four subgroups using different luting materials; in all subgroups, the inlays were cemented and dual cured without pretreatment. Group II contained six subgroups in which inlays were cemented and dual cured after application of a universal dentin adhesive. After thermocycling, interfacial adaptation was measured using swept-source optical coherence tomography (SS-OCT) imaging and statistically compared among groups.Results: Interfacial adaptation was different depending on the luting material used (p<0.05). After application of a universal adhesive, some subgroups showed improved interfacial adaptation (p<0.05). In the comparison of inlay-side and dentin-side interfaces, no difference was found in interfacial adaptation (p>0.05).Conclusions: Interfacial adaptation for resin nanoceramic inlays differed with luting material. For some self-adhesive cements, application of a universal adhesive before cementation improved interfacial adaptation.
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Miotti LL, Follak AC, Montagner AF, Pozzobon RT, da Silveira BL, Susin AH. Is Conventional Resin Cement Adhesive Performance to Dentin Better Than Self-adhesive? A Systematic Review and Meta-Analysis of Laboratory Studies. Oper Dent 2020; 45:484-495. [PMID: 32101496 DOI: 10.2341/19-153-l] [Citation(s) in RCA: 33] [Impact Index Per Article: 8.3] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Accepted: 09/30/2019] [Indexed: 11/23/2022]
Abstract
CLINICAL RELEVANCE Conventional multistep resin cements presented higher adhesive performance to dentin than simplified self-adhesive cements, which is an important criterion for indirect restoration prognosis. SUMMARY This study aimed to conduct a systematic review of the literature on laboratory studies assessing bonding performance to dentin of conventional and self-adhesive resin cements, in cementing indirect restorations. This review was reported according to the PRISMA Statement. Of a total of 518 studies, 36 were screened full text and reviewed according to exclusion criteria. Nineteen papers were included in the systematic review and meta-analyses, according to the following inclusion criteria: studies that evaluated the bond strength to dentin of indirect restorations cemented with dual conventional or self-adhesive resin cements and those that presented bond strength data in MPa as an outcome. Statistical analyses were conducted using Rev-Man 5.1. Comparisons were performed with random effects models at 5% significance level. A global analysis comparing conventional and self-adhesive cements and three subgroup analyses comparing immediate and long-term results were performed. Global analysis showed a difference between groups, with conventional resin cements presenting higher bond strength results than self-adhesive resin cements, in immediate and long-term time periods (both p=0.03). Immediate and longterm bond strength results were different for self-adhesive cements, favoring immediate bond strength (p=0.03), but immediate and long-term bond strength results for conventional resin cements were not different (p=0.06). Medium or high risk of bias was found in all studies. Conventional multistep resin cements showed superior overall adhesive performance compared with simplified self-adhesive resin cements when used to cement indirect restorations to dentin.
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Han SH, Shimada Y, Sadr A, Tagami J, Kum KY, Park SH. Effect of Pretreatment and Activation Mode on the Interfacial Adaptation of Nanoceramic Resin Inlay and Self-adhesive Resin Cement. Dent Mater 2020; 36:1170-1182. [PMID: 32536587 DOI: 10.1016/j.dental.2020.05.005] [Citation(s) in RCA: 7] [Impact Index Per Article: 1.8] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/05/2019] [Revised: 03/31/2020] [Accepted: 05/13/2020] [Indexed: 11/25/2022]
Abstract
OBJECTIVES The first objective of this study was to determine if the luting material used for resin nanoceramic inlay affects interfacial adaptation. The second was to investigate whether pretreatment and the adhesive curing method before cementation affects interfacial adaptation. The final objective was to compare activation modes of luting material. METHODS Class I cavities were prepared on extracted human third molars. Resin nanoceramic inlays were fabricated using Lava Ultimate CAD/CAM block (3 M). For the control groups, inlays were cemented using Panavia V5 (Kuraray Noritake). For the experimental groups, teeth were randomly divided into five experimental groups with four subgroups using different self-adhesive cements (SACs). Cement in Group I was dual-cured without pretreatment. In Group II, the cement was dual-cured after polyacrylic acid treatment of the tooth cavity. In Groups III and IV, the cement was dual-cured after universal dentin adhesive treatment with pre-cure and co-cure methods. In Group V, the inlay was cemented in self-cure mode. After thermocycling, interfacial adaptation at the inlay-tooth interface was measured using swept-source optical coherence tomography (SS-OCT) imaging. Finally, polymerization shrinkage strain of the luting material was measured and compared. RESULTS Interfacial adaptation differed depending on the luting material. After application of a universal adhesive, some subgroups showed improved interfacial adaptation. Interfacial adaptation and polymerization shrinkage strain differed significantly depending on activation mode. SIGNIFICANCE Interfacial adaptation for a resin nanoceramic inlay can differ according to the type of SAC and activation mode. For some SACs, application of a universal adhesive before cementation improves interfacial adaptation.
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Affiliation(s)
- Seung-Hoon Han
- Department of Conservative Dentistry, St. Vincent Hospital, College of Medicine, The Catholic University of Korea, 93 Jungbu-daero, Paldal-gu, Suwon, Gyeonggi-do, South Korea.
| | - Yasushi Shimada
- Department of Operative Dentistry, Okayama University, 2-5-1 Shikata-cho, Kita-ku, Okayama 700-8525, Japan; Department of Cariology and Operative Dentistry, Tokyo Medical and Dental University, 1-5-45 Yushima, Bunkyo-ku, Tokyo, 113-0034 Japan.
| | - Alireza Sadr
- Department of Restorative Dentistry, School of Dentistry, University of Washington, 1959 NE Pacific St, B162, Seattle, WA, 98195 USA.
| | - Junji Tagami
- Department of Cariology and Operative Dentistry, Tokyo Medical and Dental University, 1-5-45 Yushima, Bunkyo-ku, Tokyo, 113-0034 Japan.
| | - Kee-Yeon Kum
- Department of Conservative Dentistry, Dental Research Institute, National Dental Care Center for Persons with Special Needs, Seoul National University Dental Hospital, Seoul National University School of Dentistry, 101 Daehak-ro, Jongno-gu, Seoul, 08030, Republic of Korea.
| | - Sung-Ho Park
- Department of Conservative Dentistry, Oral Science Research Center, College of Dentistry, Yonsei University, #50 Yonsei-ro, Seodaemun-gu, Seoul, Republic of Korea.
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Ayoub G, Zebic ML, Miletic V, Petrović R, Veljovic D, Janackovic D. Dissimilar sintered calcium phosphate dental inserts as dentine substitutes: Shear bond strength to restorative materials. J Biomed Mater Res B Appl Biomater 2020; 108:2461-2470. [PMID: 32017440 DOI: 10.1002/jbm.b.34578] [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: 09/23/2019] [Revised: 12/25/2019] [Accepted: 01/23/2020] [Indexed: 11/06/2022]
Abstract
The application of sintered calcium phosphate dental inserts in the central part of tooth cavities can reduce amount of embedded dental composite and polymerization shrinkage of final dental fillings. The aim of this study was to analyze comparatively physico-chemical and mechanical properties of dental inserts and shear bond strength (SBS) between three dissimilar hydroxyapatite-based dental inserts and different restorative materials, after application of different clinical protocols. Starting from two different hydroxyapatite nano powders and nanostructured stabilized zirconia (YSZ), monophasic two-step sintered dense HAp inserts (TSSHAp), biphasic single-step sintered controlled porous inserts (HAp/TCp), and single-step sintered reinforced HAp/YSZ inserts were processed and characterized. Obvious differences in the microstructure of inserts surface were visualized after etching with 37% phosphoric acid. Fracture toughness of sintered inserts was ranged between 1.01 and 1.85 MPam1/2 (maximum value in the case of HAp/YSZ), while hardness values were in the range of 3.71-5.22 GPa (maximum value in the case of TSSHAp). Acid etching before application improved SBS between inserts and Maxcem compared to direct cement application. TSSHAp and HAP/TCp inserts showed comparable and relatively high SBS values, certainly higher compared to HAp/YSZ inserts. Slightly higher SBS values were measured in the case of TSSHAp insert group, and the highest mean SBS value of 18.51 MPa was determined between TSSHAp inserts and Filtek Z250_SBU following the "self-etch" protocol.
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Affiliation(s)
- Giuma Ayoub
- Faculty of Technology and Metallurgy, University of Belgrade, Belgrade, Serbia
| | - Maja Lezaja Zebic
- School of Dental Medicine, DentalNet Research Group, University of Belgrade, Belgrade, Serbia
| | - Vesna Miletic
- School of Dental Medicine, DentalNet Research Group, University of Belgrade, Belgrade, Serbia
| | - Rada Petrović
- Faculty of Technology and Metallurgy, University of Belgrade, Belgrade, Serbia
| | - Djordje Veljovic
- Faculty of Technology and Metallurgy, University of Belgrade, Belgrade, Serbia
| | - Djordje Janackovic
- Faculty of Technology and Metallurgy, University of Belgrade, Belgrade, Serbia
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12
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Angerame D, De Biasi M, Agostinetto M, Franzò A, Marchesi G. Influence of preparation designs on marginal adaptation and failure load of full-coverage occlusal veneers after thermomechanical aging simulation. J ESTHET RESTOR DENT 2019; 31:280-289. [PMID: 30790399 DOI: 10.1111/jerd.12457] [Citation(s) in RCA: 13] [Impact Index Per Article: 2.6] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/15/2018] [Revised: 12/14/2018] [Accepted: 12/27/2018] [Indexed: 11/29/2022]
Abstract
OBJECTIVES To evaluate the fracture resistance and marginal quality of maxillary molars restored using lithium disilicate glass-ceramic (LDG) occlusal veneers with two preparation designs. METHODS Sixteen extracted maxillary molars were assigned to two groups (n = 8). In group 1 (G1), the teeth received a preparation for a conservative full-coverage occlusal veneer restoration with a 90° rounded shoulder margin. In group 2 (G2), the teeth underwent a 1-mm cusp reduction with a marginal chamfer. LDG restorations (IPS e.max CAD) were obtained with the Cerec 3 CAD/CAM system and luted with Variolink II cement. After thermomechanical aging (1 250 000 cycles), the specimens were loaded to fracture. A semiquantitative marginal seal evaluation was performed observing resin replicas of the specimens at the scanning electron microscope. Cement thickness was assessed at the stereomicroscope on sectioned specimens. Collected data were statistically analyzed by parametric and nonparametric tests. RESULTS The maximum load to fracture was 2395.01 ± 150.96 N in G1 and 2408.39 ± 112.66 N in G2. Most of the observed specimens exhibited restorable fractures and continuous margins. Cement thickness was 132 ± 38 μm in G1 and 150 ± 41 μm in G2. No differences between the groups emerged. CONCLUSION This study demonstrated similar satisfactory performance of the two considered preparations designs for occlusal veneer with LDG. CLINICAL SIGNIFICANCE A new minimally invasive occlusal veneer preparation with marginal chamfer exhibited promising fracture resistance and marginal adaptation that were comparable to those of a standard conservative preparation for the restoration of molars with CAD/CAM lithium disilicate occlusal veneers.
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Affiliation(s)
- Daniele Angerame
- University Clinical Department of Medical, Surgical, and Health Sciences, University of Trieste, Trieste, Italy
| | - Matteo De Biasi
- University Clinical Department of Medical, Surgical, and Health Sciences, University of Trieste, Trieste, Italy
| | | | | | - Giulio Marchesi
- University Clinical Department of Medical, Surgical, and Health Sciences, University of Trieste, Trieste, Italy
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Simões TC, Rubim MG, Carvalho RVD, Sá ATGD, Torres WAM, Moura SK. Effect of Polyacrylic Acid Conditioning on the Longevity of Bonding of Self - Adhesive Resin Cement to Dentin. JOURNAL OF HEALTH SCIENCES 2018. [DOI: 10.17921/2447-8938.2018v20n2p100-105] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/24/2022] Open
Abstract
AbstractBonding of fiber posts using self-adhesive resin cement to radicular dentin is controversial. The aim was to evaluate the effect of conditioning of polyacrylic acid on the longevity of bonding of self adhesive resin cement to dentin. Thirty six single rooted pre molars were divided into 3 groups (n=12) ARC: ScotchBond Multi Purpose + RelyX™ARC; U: RelyX™U200; PU: 11.5% Polyacrylic acid + RelyX™U200. After conditioning of the dentin, the resin cement and the post were inserted and light-activated for 60s (1200mw/cm2) and stored in distilled water (24h/37ºC). Two discs of 1 mm thickness were obtained from each root-third and tested in push-out (0.5mm/min) after 24 hours and 6 months. For statistical purposes, the data from the root thirds were grouped and the bond strength (in MPa) was analyzed using Two-Way Analysis of Variance and Tukey’s post-hoc test at 5%. The power of the test was calculated. The bonding of the U at 6 months was higher than PU at both times (p<0.001). There were no differences for time (p=0.153) or for the interaction of treatment x time (p=0.090). Adhesive fractures between the cement and dentin were prevalent. The power test was 0.97. The bonding of the RelyX™U200 was influenced by the dentin pre-treatment with poliacrylic acid and the bonding of all groups remained stable for 6 months.Keywords: Dental Cements. Dentin. Shear Strength.ResumoA adesão de pino de fibra de vidro com cimento resinoso autoadesivo à dentina é controversa. Foi objetivo avaliar o efeito do condicionamento da dentina com ácido poliacrílico na longevidade da adesão de cimento resinoso autoadesivo. Trinta e seis raízes de pré-molares uni radiculados foram divididas em 3 grupos (n=12) ARC: ScotchBond Multi Purpose + RelyX™ARC; U: RelyX™U200; PU: Ácido poliacrílico 11,5% + RelyX™U200. Após condicionamento da dentina, o cimento resinoso e o pino de fibra de vidro foram inseridos, fotoativados por 60s (1200mw/cm2) e armazenados em água destilada (24h/37ºC). Dois discos de dentina de 1 mm de espessura foram obtidos de cada terço radicular e testados em push-out (0.5mm/min) após 24 houras e 6 meses. Para análise estatística, os dados dos terços radiculares foram agrupados e resistência adesiva (em MPa) analisada por Análise de Variância de dois fatores e teste de Tukey a 5%. O poder do teste foi calculado. A adesão de the U após 6 meses foi maior que a de PU nos dois períodos (p<0,001). Não houve diferença para o fator tempo (p=0,153) nem para a interação tratamento x tempo (p=0,090). Fraturas adesivas prevaleceram entre cimento e dentina. O poder do teste calculado foi de 0,97. A adesão do RelyX™U200 foi influenciada pelo pré-tratamento da dentina com ácido poliacrílico e a adesão de todos os grupos se manteve estável até 6 meses.Palavras-chave: Cimentos Dentários. Dentina. Resistência ao Cisalhamento.
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Almeida CMD, Meereis CTW, Leal FB, Ogliari AO, Piva E, Ogliari FA. Evaluation of long-term bond strength and selected properties of self-adhesive resin cements. Braz Oral Res 2018. [PMID: 29513888 DOI: 10.1590/1807-3107bor-2018.vol32.0015] [Citation(s) in RCA: 7] [Impact Index Per Article: 1.2] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/22/2022] Open
Abstract
This study evaluated the shear bond strength (SBS) of self-adhesive resin cements (SARCs) to dentin and their physical-chemical properties. Five commercial SARCs were evaluated [SmartCem®2 - DENTSPLY (SC2); BisCem® - Bisco (BC); SeT PP® - SDI (SeT); Relyx U100® - 3M ESPE (U100) and YCEM® SA - Yller (YCEM)]. The SARCs were evaluated for SBS to dentin (n = 10) after 24 h, 6 months, and 12 months. The dentin demineralization caused by acidic monomers was observed by SEM, and pH-neutralization of eluate was observed for 24 h. Degree of conversion (DC), rate of polymerization (Rp), flexural strength (FS), and elastic modulus (E) were evaluated. Immediate SBS of SC2, SET, U100, and YCEM were statistically higher than that of BC (p < 0.001). After 12 months, all SARCs showed reduced SBS values and U100 showed values similar to those of SET and YCEM, and higher than those of BC and SC2 (p = 0.001). Demineralization pattern of SARCs was similar. At 24h, all SARCs showed no differences in the pH-value, except BC and U100 (p < 0.001). YCEM showed the highest Rp. U100, YCEM, and SC2 showed statistically higher FS (p<0.001) and E (p < 0.001) when compared with SET and BC. U100 and YCEM showed the best long-term bonding irrespective of the storage period. A significant reduction in SBS was found for all groups after 12 months. SBS was not shown to be correlated with physical-chemical properties, and appeared to be material-dependent. The polymerization profile suggested that an increased time of light activation, longer than that recommended by manufacturers, would be necessary to optimize DC of SARCs.
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Affiliation(s)
| | | | - Fernanda Barbosa Leal
- Universidade Federal de Pelotas - UFPel, Undergraduate Program in Dentistry, Pelotas, SC, Brazil
| | - Aline Oliveira Ogliari
- Universidade Federal de Pelotas - UFPel, Undergraduate Program in Dentistry, Pelotas, SC, Brazil
| | - Evandro Piva
- Universidade Federal de Pelotas - UFPel, School of Dentistry, Department of Operative Dentistry, Pelotas, SC, Brasil
| | - Fabrício A Ogliari
- Universidade Federal de Pelotas - UFPel, Materials Engineering School, Department of Organic Chemistry, Pelotas, SC, Brasil
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Reboul T, Hoang Thaï HA, Cetik S, Atash R. Comparison between shear forces applied on the overlay-dental tissue interface using different bonding techniques: An in vitro study. J Indian Prosthodont Soc 2018; 18:212-218. [PMID: 30111909 PMCID: PMC6070845 DOI: 10.4103/jips.jips_165_17] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/28/2017] [Accepted: 03/12/2018] [Indexed: 11/09/2022] Open
Abstract
Aim: The aim of this study was to compare the adhesion of glass-ceramic overlays to tooth structure, under the effect of shear forces, using different bonding systems. Materials and Methods: Thirty healthy lower third molars were selected and randomly allocated into three groups (n = 10). Group 1: overlays bonded to tooth structure using Panavia V5 with immediate dentin sealing (IDS); Group 2: overlays bonded using Panavia V5 without IDS; and Group 3: overlays bonded using heated composite combined with a bonding agent with IDS. All the restorations were made of glass-ceramic (Suprinity, Vita). The restored teeth were then stored in distilled water for 7 days and at room temperature. Shear forces were applied using a universal testing machine. Load and displacement were recorded at intervals of 0.1 s. A statistical analysis was used to compare the groups. Results: The mean resistance to fractures ± standard deviation obtained for the Groups 1, 2, and 3 was, respectively, 15.7440 ± 2.13, 12.0750 ± 1.41, and 8.33364 ± 2.85 MPa. The analysis of variance was highly significant (P < 0.001) allowing us to reject the null hypothesis of equality between the three groups. Comparisons between pairs also provided significant results. Conclusion: Bonding using Panavia V5 with IDS showed a better resistance to shear forces when compared to other bonding techniques. The application of IDS increased the adhesion.
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Affiliation(s)
- Thomas Reboul
- Department of Stomatology and Dentistry, Erasmus Hospital, Université Libre de Bruxelles, Brussels, Belgium
| | - H A Hoang Thaï
- Department of Stomatology and Dentistry, Erasmus Hospital, Université Libre de Bruxelles, Brussels, Belgium
| | - Sibel Cetik
- Department of Stomatology and Dentistry, Laboratory of Physiology and Pharmaceutics, Faculty of Medicine, Erasmus Hospital, Université Libre de Bruxelles, Brussels, Belgium
| | - Ramin Atash
- Department of Stomatology and Dentistry, Erasmus Hospital, Université Libre de Bruxelles, Brussels, Belgium
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de Kok P, Pereira GK, Fraga S, de Jager N, Venturini AB, Kleverlaan CJ. The effect of internal roughness and bonding on the fracture resistance and structural reliability of lithium disilicate ceramic. Dent Mater 2017; 33:1416-1425. [DOI: 10.1016/j.dental.2017.09.018] [Citation(s) in RCA: 33] [Impact Index Per Article: 4.7] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/17/2017] [Revised: 08/04/2017] [Accepted: 09/22/2017] [Indexed: 10/18/2022]
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17
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Moghaddas MJ, Hossainipour Z, Majidinia S, Ojrati N. Comparison of the shear bond strength of self-adhesive resin cements to enamel and dentin with different protocol of application. Electron Physician 2017; 9:4985-4991. [PMID: 28979732 PMCID: PMC5614282 DOI: 10.19082/4985] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/04/2017] [Accepted: 05/17/2017] [Indexed: 11/20/2022] Open
Abstract
AIM The aim of the present study was to determine the shear bond strength of self-adhesive resin cements to enamel and dentin with and without surface treatments, and compare them with conventional resin cement as the control group. METHODS In this experimental study, buccal and lingual surface of the thirty sound human premolars were polished in order to obtain a flat surface of enamel (E) in buccal, and dentin (D) in lingual. Sixty feldspathic ceramic blocks (2×3×3 mm) were prepared and randomly divided into six groups (n=10). Each block was cemented to the prepared surface (30 enamel and 30 dentin surface) according to different protocol: E1 and D1; RelyX ARC as control group, E2, D2; RelyX Unicem, E3, D3; acid etching +RelyX Unicem. The specimens were termocycled and subjected to shear forces by a universal testing machine at a cross head speed of 0.5 mm/min. The mode of fracture were evaluated by stereomicroscope. Data were analyzed with descriptive statistical methods using SPSS version 15. One-way ANOVA, and post hoc Tukey tests were used to compare bond strengths between the groups with different adhesives at α=0.05. RESULTS Statistical analysis showed no significant differences within the enamel subgroups, but there were significant differences within the dentinal subgroups, and statistically significant differences were found between the groups D1and D3 (p=0.02). Comparison between similar enamel and dentinal subgroups showed that there was a significant difference just between the subgroups E3 and D3 (p=0.01). CONCLUSION Elective etching of enamel did not lead to significant increase in the shear bond strength of RelyX Unicem in comparison to RelyX ARC. On the other hand, elective etching of dentin reduces the bond strength of RelyX Unicem with the dentin.
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Affiliation(s)
- Mohammad Javad Moghaddas
- Department of Operative Dentistry, School of Dentistry, Mashhad University of Medical Sciences, Mashhad, Iran
| | - Zahra Hossainipour
- School of Dentistry, Mashhad University of Medical Sciences, Mashhad, Iran
| | - Sara Majidinia
- Dental Materials Research Center, Mashhad University of Medical Sciences, Mashhad, Iran
| | - Najmeh Ojrati
- Postgraduate Student of Operative Dentistry, School of Dentistry, Mashhad University of Medical Sciences, Mashhad, Iran
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Correlative analysis of cement–dentin interfaces using an interfacial fracture toughness and micro-tensile bond strength approach. Dent Mater 2016; 32:1575-1585. [DOI: 10.1016/j.dental.2016.09.031] [Citation(s) in RCA: 20] [Impact Index Per Article: 2.5] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/15/2016] [Revised: 09/04/2016] [Accepted: 09/13/2016] [Indexed: 11/21/2022]
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19
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Effect of surface treatment and aging on bond strength of composite resin onlays. J Prosthet Dent 2016; 116:389-96. [DOI: 10.1016/j.prosdent.2016.02.016] [Citation(s) in RCA: 6] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/23/2015] [Revised: 02/05/2016] [Accepted: 02/17/2016] [Indexed: 10/21/2022]
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20
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de Kok P, de Jager N, Veerman IA, Hafeez N, Kleverlaan CJ, Roeters JF. Effect of a retention groove on the shear bond strength of dentin-bonded restorations. J Prosthet Dent 2016; 116:382-8. [DOI: 10.1016/j.prosdent.2016.01.032] [Citation(s) in RCA: 5] [Impact Index Per Article: 0.6] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/06/2015] [Revised: 01/22/2016] [Accepted: 01/26/2016] [Indexed: 10/21/2022]
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21
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Flury S, Schmidt SZ, Peutzfeldt A, Lussi A. Dentin bond strength of two resin-ceramic computer-aided design/computer-aided manufacturing (CAD/CAM) materials and five cements after six months storage. Dent Mater J 2016; 35:728-735. [PMID: 27546861 DOI: 10.4012/dmj.2016-095] [Citation(s) in RCA: 23] [Impact Index Per Article: 2.9] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/23/2022]
Abstract
The aim was to investigate dentin bond strength of two resin-ceramic materials and five cements after 24 h and six months storage. Cylinders (n=15/group) of Lava Ultimate (3M ESPE) and VITA ENAMIC (VITA Zahnfabrik) were cemented to mid-coronal dentin of 300 extracted human molars with RelyX Ultimate (3M ESPE), PANAVIA F2.0 (Kuraray), Variolink II (Ivoclar Vivadent), els cem (Saremco Dental), or Ketac Cem Plus (3M ESPE). Shear bond strength (SBS) was measured after 24 h or six months storage (37°C, 100% humidity) and statistically analyzed (significance level: α=0.05). SBS varied markedly between Lava Ultimate and VITA ENAMIC, between the five cements, and between storage of either 24 h or six months. After six months, SBS was highest when Lava Ultimate was cemented with RelyX Ultimate and when VITA ENAMIC was cemented with RelyX Ultimate or with Variolink II. Lava Ultimate was somewhat more sensitive to storage than was VITA ENAMIC.
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Affiliation(s)
- Simon Flury
- Department of Preventive, Restorative, and Pediatric Dentistry, School of Dental Medicine, University of Bern
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22
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Kameyama A, Bonroy K, Elsen C, Lührs AK, Suyama Y, Peumans M, Van Meerbeek B, De Munck J. Luting of CAD/CAM ceramic inlays: direct composite versus dual-cure luting cement. Biomed Mater Eng 2016; 25:279-88. [PMID: 26407114 DOI: 10.3233/bme-151274] [Citation(s) in RCA: 13] [Impact Index Per Article: 1.6] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/15/2022]
Abstract
The aim of this study was to investigate bonding effectiveness in direct restorations. A two-step self-etch adhesive and a light-cure resin composite was compared with luting with a conventional dual-cure resin cement and a two-step etch and rinse adhesive. Class-I box-type cavities were prepared. Identical ceramic inlays were designed and fabricated with a computer-aided design/computer-aided manufacturing (CAD/CAM) device. The inlays were seated with Clearfil SE Bond/Clearfil AP-X (Kuraray Medical) or ExciTE F DSC/Variolink II (Ivoclar Vivadent), each by two operators (five teeth per group). The inlays were stored in water for one week at 37°C, whereafter micro-tensile bond strength testing was conducted. The micro-tensile bond strength of the direct composite was significantly higher than that from conventional luting, and was independent of the operator (P<0.0001). Pre-testing failures were only observed with the conventional method. High-power light-curing of a direct composite may be a viable alternative to luting lithium disilicate glass-ceramic CAD/CAM restorations.
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Affiliation(s)
- Atsushi Kameyama
- KU Leuven BIOMAT, Department of Oral Health Sciences, Biomedical Sciences Group, KU Leuven (University of Leuven), Leuven, Belgium.,Division of General Dentistry, Department of Clinical Oral Health Science, Tokyo Dental College, Tokyo, Japan
| | - Kim Bonroy
- Section of Operative Dentistry, School of Dentistry, Oral Pathology and Maxillo-facial Surgery, KU Leuven (University of Leuven), Leuven, Belgium
| | - Caroline Elsen
- Section of Operative Dentistry, School of Dentistry, Oral Pathology and Maxillo-facial Surgery, KU Leuven (University of Leuven), Leuven, Belgium
| | - Anne-Katrin Lührs
- KU Leuven BIOMAT, Department of Oral Health Sciences, Biomedical Sciences Group, KU Leuven (University of Leuven), Leuven, Belgium.,Department of Conservative Dentistry, Periodontology and Preventive Dentistry, Hannover Medical School, Hannover, Germany
| | - Yuji Suyama
- KU Leuven BIOMAT, Department of Oral Health Sciences, Biomedical Sciences Group, KU Leuven (University of Leuven), Leuven, Belgium.,Department of Dentistry, Toranomon Hospital, Tokyo, Japan
| | - Marleen Peumans
- KU Leuven BIOMAT, Department of Oral Health Sciences, Biomedical Sciences Group, KU Leuven (University of Leuven), Leuven, Belgium
| | - Bart Van Meerbeek
- KU Leuven BIOMAT, Department of Oral Health Sciences, Biomedical Sciences Group, KU Leuven (University of Leuven), Leuven, Belgium
| | - Jan De Munck
- KU Leuven BIOMAT, Department of Oral Health Sciences, Biomedical Sciences Group, KU Leuven (University of Leuven), Leuven, Belgium
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Simões TC, Luque-Martinez ÍV, Moraes RR, Sá ATG, Loguercio AD, Moura SK. Longevity of Bonding of Self-adhesive Resin Cement to Dentin. Oper Dent 2016; 41:E64-72. [DOI: 10.2341/14-266-lr] [Citation(s) in RCA: 16] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/23/2022]
Abstract
SUMMARY
Objective: To evaluate the effect of root dentin treatment on the bonding of self-adhesive resin cement after 24 hours and after 6 months.
Methods: A total of 48 single-rooted premolars were endodontically treated and divided into four groups (n=12): Adper Scotchbond Multi-Purpose + RelyX ARC (ARC); RelyX U200 (U200); EDTA + RelyX U200 (EU200); and phosphoric acid (H3PO4) + RelyX U200 (HU200). After filling the roots, an Exacto No. 2 fiber post was cleaned, treated with silane (60 seconds), positioned, and light cured (LED; 60 seconds at 1200 mW/cm2). After storage (37°C/24 h), the roots were cut to obtain two discs (1 mm) of each third. They were stored in distilled water (24 hours at 37°C); one disc of each root-third was subjected to the push-out test (0.5 mm/min) at 24 hours and the other disc after six months of water storage (37°C). The data on the root-thirds were averaged for statistical purposes. The average values of bond strength (MPa) were analyzed by two-way analysis of variance and post hoc Student-Newman-Keuls (5%).
Results: There were statistical differences for the treatment of dentin (p<0.001), for time (p=0.003), and the interaction of treatment and time (p=0.017). After 24 hours, we observed lower bond strength in the HU200 group when compared with other groups (ARC, U200, and EU200). After six months, HU200 showed the lowest bond strength. Higher strengths were observed for EU200 and U200 similarly, which were higher than ARC.
Conclusion: The bonding of the self-adhesive resin cement varied over time in the tested groups.
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Affiliation(s)
- TC Simões
- Tânia Christina Simões, DDS, MS, PhD, Restorative Dentistry, University North of Paraná, Londrina, Brazil
| | - ÍV Luque-Martinez
- Issis Virgínia Luque-Martinez, Dentistry Academic Unit, Faculty of Medicine, Pontificia Universidad Católica de Chile, Santiago, Chile
| | - RR Moraes
- Rafael R de Moraes, DDS, MS, PhD, professor, Restorative Dentistry, School of Dentistry, Federal University of Pelotas, Pelotas, Brazil
| | - ATG Sá
- André Tomazini Gomes de Sá, PhD, professor, Prosthodontics, Federal Institute of Paraná, Londrina, Brazil
| | - AD Loguercio
- Alessandro D Loguercio, DDS, MS, PhD, professor, Restorative Dentistry, State University of Ponta Grossa, Ponta Grossa, Brazil
| | - SK Moura
- Sandra Kiss Moura, DDS, MDS, PhD, professor, Restorative Dentistry, University North of Paraná, Londrina, Brazil
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MARQUES JDN, GONZALEZ CB, SILVA EMD, PEREIRA GDDS, SIMÃO RA, PRADO MD. Análise comparativa da resistência de união de um cimento convencional e um cimento autoadesivo após diferentes tratamentos na superfície de pinos de fibra de vidro. REVISTA DE ODONTOLOGIA DA UNESP 2016. [DOI: 10.1590/1807-2577.18615] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.1] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/22/2022] Open
Abstract
Resumo Introdução Os pinos de fibra de vidro são uma alternativa aos núcleos metálicos e apresentam vantagens, tais como: estética, módulo de elasticidade semelhante à dentina e cimentação imediata após o término do tratamento endodôntico. Ainda, apresentam a capacidade de aderir ao cimento resinoso e este, à dentina, por meio de técnicas adesivas. Objetivo Comparar a adesão de um cimento resinoso convencional e um autoadesivo a pinos de fibra de vidro, e os efeitos de diferentes tratamentos de superfície na resistência adesiva dos pinos. Material e método Trinta pinos foram divididos em três grupos: Controle: sem tratamento na superfície; Jateamento: jateamento com óxido de alumínio por 30 segundos, e Peróxido: imersão em peróxido de hidrogênio 24% por um minuto. Em seguida, corpos de prova foram obtidos a partir de cilindros de cimento resinoso contendo o pino de fibra posicionado no centro de seu longo eixo. Em cada grupo, cinco pinos foram associados ao adesivo Âmbar + cimento convencional AllCem Core e os outros cinco pinos, ao cimento autoadesivo RelyX U200. O conjunto pino/cimento foi segmentado e avaliado em relação à resistência de união (RU) por push-out. Os dados foram analisados estatisticamente pelos testes de ANOVA e Tukey (p<0,05). Resultado Os cimentos avaliados exibiram valores de RU semelhantes. Em relação aos tratamentos de superfície, os maiores valores de RU foram encontrados no grupo Jateamento. Conclusão O cimento convencional, AllCem Core, e o cimento autoadesivo, RelyX U200, mostraram valores de resistência de união semelhantes. Ainda, o jateamento com óxido de alumínio favoreceu a adesão dos pinos aos cimentos.
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Influence of proximal box elevation on bond strength of composite inlays. Clin Oral Investig 2016; 21:247-254. [PMID: 26969499 DOI: 10.1007/s00784-016-1782-7] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/25/2015] [Accepted: 03/02/2016] [Indexed: 10/22/2022]
Abstract
OBJECTIVES The objective of the present study was to evaluate the influence of proximal box elevation on microtensile bond strength (mTBS) of composite inlays to the proximal box floor, using either a total-etch or a self-adhesive resin cement. MATERIALS AND METHODS Twenty-five human molars were selected, and a class II OM (inlay) cavity preparation was performed in each tooth. Cavities were randomly assigned into four experimental groups, according to the location of the proximal cervical margin (located 1 mm below cementoenamel junction (CEJ), or with proximal box elevation with composite resin) and the resin cement used for luting (a total-etch resin cement RelyX ARC or a self-adhesive resin cement G-Cem). After 1-week water storage, samples were subjected to mTBS test. Results were analyzed by Kruskal-Wallis and Mann-Whitney U tests (p < 0.05). RESULTS Kruskal-Wallis revealed statistically significant differences among experimental groups (p = 0.007). Both resin cements showed similar bond strength values when cervical margin was located below CEJ. The proximal box elevation improved the bond strength of composite inlays for both resin cements. However, only for G-Cem was this improvement statistically significant. CONCLUSIONS The proximal box elevation improved the bond strength attained by G-Cem resin cement. For RelyX ARC, the position of the cervical margin did not affect composite inlays bond strength. CLINICAL RELEVANCE Proximal box elevation does not decline bond strength of composite inlays to the proximal floor when a total-etch or a self-adhesive resin cement is used.
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Fuentes MV, Escribano N, Baracco B, Romero M, Ceballos L. Effect of indirect composite treatment microtensile bond strength of self-adhesive resin cements. J Clin Exp Dent 2016; 8:e14-21. [PMID: 26855700 PMCID: PMC4739362 DOI: 10.4317/jced.52754] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.1] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/01/2015] [Accepted: 09/12/2015] [Indexed: 11/28/2022] Open
Abstract
Background No specific indications about the pre-treatment of indirect composite restorations is provided by the manufacturers of most self-adhesive resin cements. The potential effect of silane treatment to the bond strength of the complete tooth/indirect restoration complex is not available.The aim of this study was to determine the contribution of different surface treatments on microtensile bond strength of composite overlays to dentin using several self-adhesive resin cements and a total-etch one. Material and Methods Composite overlays were fabricated and bonding surfaces were airborne-particle abraded and randomly assigned to two different surface treatments: no treatment or silane application (RelyX Ceramic Primer) followed by an adhesive (Adper Scotchbond 1 XT). Composite overlays were luted to flat dentin surfaces using the following self-adhesive resin cements: RelyX Unicem, G-Cem, Speedcem, Maxcem Elite or Smartcem2, and the total-etch resin cement RelyX ARC. After 24 h, bonded specimens were cut into sticks 1 mm thick and stressed in tension until failure. Two-way ANOVA and SNK tests were applied at α=0.05. Results Bond strength values were significantly influenced by the resin cement used (p<0.001). However, composite surface treatment and the interaction between the resin cement applied and surface treatment did not significantly affect dentin bond strength (p>0.05). All self-adhesive resin cements showed lower bond strength values than the total-etch RelyX ARC. Among self-adhesive resin cements, RelyX Unicem and G-Cem attained statistically higher bond strength values. Smartcem2 and Maxcem Elite exhibited 80-90% of pre-test failures. Conclusions The silane and adhesive application after indirect resin composite sandblasting did not improve the bond strength of dentin-composite overlay complex. Selection of the resin cement seems to be a more relevant factor when bonding indirect composites to dentin than its surface treatment. Key words:Bond strength, self-adhesive cement, silane, dentin, indirect composite.
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Affiliation(s)
- María-Victoria Fuentes
- Assistant Professor, Department of Stomatology and Nursing, Health Sciences Faculty, Rey Juan Carlos University, Alcorcón, Spain
| | - Nuria Escribano
- Assistant Professor, Department of Stomatology and Nursing, Health Sciences Faculty, Rey Juan Carlos University, Alcorcón, Spain
| | - Bruno Baracco
- Assistant Professor, Department of Stomatology and Nursing, Health Sciences Faculty, Rey Juan Carlos University, Alcorcón, Spain
| | - Martin Romero
- Associate Professor, Department of Stomatology and Nursing, Health Sciences Faculty, Rey Juan Carlos University, Alcorcón, Spain
| | - Laura Ceballos
- Associate Professor, Department of Stomatology and Nursing, Health Sciences Faculty, Rey Juan Carlos University, Alcorcón, Spain
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Cementation of Glass-Ceramic Posterior Restorations: A Systematic Review. BIOMED RESEARCH INTERNATIONAL 2015; 2015:148954. [PMID: 26557651 PMCID: PMC4628770 DOI: 10.1155/2015/148954] [Citation(s) in RCA: 28] [Impact Index Per Article: 3.1] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Received: 04/23/2015] [Revised: 07/23/2015] [Accepted: 08/05/2015] [Indexed: 11/17/2022]
Abstract
Aim. The aim of this comprehensive review is to systematically
organize the current knowledge regarding the cementation of glass-ceramic
materials and restorations, with an additional focus on the benefits of Immediate
Dentin Sealing (IDS). Materials and Methods. An extensive literature
search concerning the cementation of single-unit glass-ceramic posterior restorations
was conducted in the databases of MEDLINE (Pubmed), CENTRAL (Cochrane Central
Register of Controlled Trials), and EMBASE. To be considered for inclusion,
in vitro and in vivo studies should compare different
cementation regimes involving a “glass-ceramic/cement/human tooth” complex.
Results and Conclusions. 88 studies were included in total.
The in vitro data were organized according to the following topics:
(micro)shear and (micro)tensile bond strength, fracture strength, and marginal gap
and integrity. For in vivo studies survival and quality of survival
were considered. In vitro studies showed that adhesive systems
(3-step, etch-and-rinse) result in the best (micro)shear bond strength values compared
to self-adhesive and self-etch systems when luting glass-ceramic substrates
to human dentin. The highest fracture strength is obtained with adhesive cements
in particular. No marked clinical preference for one specific procedure could be
demonstrated on the basis of the reviewed literature. The possible merits of IDS
are most convincingly illustrated by the favorable microtensile bond strengths.
No clinical studies regarding IDS were found.
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Sasse M, Krummel A, Klosa K, Kern M. Influence of restoration thickness and dental bonding surface on the fracture resistance of full-coverage occlusal veneers made from lithium disilicate ceramic. Dent Mater 2015; 31:907-15. [DOI: 10.1016/j.dental.2015.04.017] [Citation(s) in RCA: 57] [Impact Index Per Article: 6.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/09/2014] [Revised: 03/04/2015] [Accepted: 04/28/2015] [Indexed: 10/23/2022]
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McLean DE, Meyers EJ, Guillory VL, Vandewalle KS. Enamel Bond Strength of New Universal Adhesive Bonding Agents. Oper Dent 2015; 40:410-7. [PMID: 25575201 DOI: 10.2341/13-287-l] [Citation(s) in RCA: 48] [Impact Index Per Article: 5.3] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/23/2022]
Abstract
PURPOSE Universal bonding agents have been introduced for use as self-etch or etch-and-rinse adhesives depending on the dental substrate and clinician's preference. The purpose of this study was to evaluate the shear bond strength (SBS) of composite to enamel using universal adhesives compared to a self-etch adhesive when applied in self-etch and etch-and-rinse modes over time. METHODS AND MATERIALS Extracted human third molars were used to create 120 enamel specimens. The specimens were ground flat and randomly divided into three groups: two universal adhesives and one self-etch adhesive. Each group was then subdivided, with half the specimens bonded in self-etch mode and half in etch-and-rinse mode. The adhesives were applied as per manufacturers' instructions, and composite was bonded using a standardized mold and cured incrementally. The groups were further divided into two subgroups with 10 specimens each. One subgroup was stored for 24 hours and the second for six months in 37°C distilled water and tested in shear. Failure mode was also determined for each specimen. RESULTS A three-way analysis of variance (ANOVA) found a significant difference between groups based on bonding agent (p<0.001) and surface treatment (p<0.001) but not on time (p=0.943), with no significant interaction (p>0.05). Clearfil SE in etch-and-rinse and self-etch modes had more mixed fractures than either universal adhesive in either mode. CONCLUSIONS Etching enamel significantly increased the SBS of composite to enamel. Clearfil SE had significantly greater bond strength to enamel than either universal adhesive, which were not significantly different from each other.
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Acar O, Tuncer D, Yuzugullu B, Celik C. The effect of dentin desensitizers and Nd:YAG laser pre-treatment on microtensile bond strength of self-adhesive resin cement to dentin. J Adv Prosthodont 2014; 6:88-95. [PMID: 24843392 PMCID: PMC4024564 DOI: 10.4047/jap.2014.6.2.88] [Citation(s) in RCA: 15] [Impact Index Per Article: 1.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/10/2013] [Revised: 03/04/2014] [Accepted: 03/13/2014] [Indexed: 11/08/2022] Open
Abstract
PURPOSE The purpose of this study is to evaluate if pre-treatment with desensitizers have a negative effect on microtensile bond strength before cementing a restoration using recently introduced self-adhesive resin cement to dentin. MATERIALS AND METHODS Thirty-five human molars' occlusal surfaces were ground to expose dentin; and were randomly grouped as (n=5); 1) Gluma-(Glutaraldehyde/HEMA) 2) Aqua-Prep F-(Fluoride), 3) Bisblock-(Oxalate), 4) Cervitec Plus-(Clorhexidine), 5) Smart protect-(Triclosan), 6) Nd:YAG laser, 7) No treatment (control). After applying the selected agent, RelyX U200 self-adhesive resin cement was used to bond composite resin blocks to dentin. All groups were subjected to thermocycling for 1000 cycles between 5-55℃. Each bonded specimen was sectioned to microbars (6 mm × 1 mm × 1 mm) (n=20). Specimens were submitted to microtensile bond strength test at a crosshead speed of 0.5 mm/min. Kolmogorov-Smirnov, Levene's test, Kruskal-Wallis One-way Analysis of Variance, and Conover's nonparametric statistical analysis were used (P<.05). RESULTS Gluma, Smart Protect and Nd:YAG laser treatments showed comparable microtensile bond strengths compared with the control group (P>.05). The microtensile bond strengths of Aqua-Prep F, and Cervitec Plus were similar to each other but significantly lower than the control group (P<.05). Bisblock showed the lowest microtensile bond strength among all groups (P<.001). Most groups showed adhesive failure. CONCLUSION Within the limitation of this study, it is not recommended to use Aqua-prep F, Cervitec Plus and Bisblock on dentin when used with a self-adhesive resin cement due to the decrease they cause in bond strength. Beside, pre-treatment of dentin with Gluma, Smart protect, and Nd:YAG laser do not have a negative effect.
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Affiliation(s)
- Ozlem Acar
- Department of Prosthodontics, Faculty of Dentistry, Baskent University, Ankara, Turkey
| | - Duygu Tuncer
- Department of Restorative Dentistry, Faculty of Dentistry, Baskent University, Ankara, Turkey
| | - Bulem Yuzugullu
- Department of Prosthodontics, Faculty of Dentistry, Baskent University, Ankara, Turkey
| | - Cigdem Celik
- Department of Restorative Dentistry, Faculty of Dentistry, Baskent University, Ankara, Turkey
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Lührs AK, Pongprueksa P, De Munck J, Geurtsen W, Van Meerbeek B. Curing mode affects bond strength of adhesively luted composite CAD/CAM restorations to dentin. Dent Mater 2014; 30:281-91. [DOI: 10.1016/j.dental.2013.11.016] [Citation(s) in RCA: 55] [Impact Index Per Article: 5.5] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/23/2013] [Revised: 11/25/2013] [Accepted: 11/28/2013] [Indexed: 11/28/2022]
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Suyama Y, de Munck J, Cardoso MV, Yamada T, Van Meerbeek B. Bond durability of self-adhesive composite cements to dentine. J Dent 2013; 41:908-17. [DOI: 10.1016/j.jdent.2013.07.008] [Citation(s) in RCA: 15] [Impact Index Per Article: 1.4] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/26/2012] [Revised: 05/31/2013] [Accepted: 07/19/2013] [Indexed: 11/25/2022] Open
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Andre CB, Aguiar TR, Ayres APA, Ambrosano GMB, Giannini M. Bond strength of self-adhesive resin cements to dry and moist dentin. Braz Oral Res 2013; 27:389-95. [DOI: 10.1590/s1806-83242013000500002] [Citation(s) in RCA: 11] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/07/2013] [Accepted: 07/12/2013] [Indexed: 11/22/2022] Open
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Zmener O, Pameijer CH, Rincon SMH, Serrano SA, Chaves C. Sealing properties of three luting agents used for complete cast crowns: a bacterial leakage study. Oper Dent 2013; 38:E221-8. [PMID: 23570295 DOI: 10.2341/12-446-l] [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: 11/23/2022]
Abstract
OBJECTIVE To assess the sealing properties of three different luting materials used for cementation of full cast crowns on extracted human premolars. METHODS Thirty noncarious human premolars were prepared in a standardized fashion for full cast crown restorations. All margins were placed in dentin. After impressions of the preparations, stone dies were fabricated on which copings were waxed, which were cast in type III alloy using standardized laboratory methods. Teeth were randomly assigned to three groups of 10 samples each (n=10), for which the following cements were used: 1) a resin-modified glass ionomer cement, Rely X Luting Plus (3M ESPE, St Paul, MN, USA); 2) a self-adhesive resin cement, Maxcem Elite (Kerr Corporation, Orange, CA, USA); and 3) a glass ionomer cement, Ketac Cem (3M ESPE), the latter used as control. After cementation the samples were allowed to bench-set for 10 minutes, stored in water at 37°C, subjected to thermal cycling (2000×, between 5°C and 55°C, dwell time 35 seconds), and then stored in sterile phosphate buffer for seven days at 37°C. Subsequently, the occlusal surface was carefully reduced until the dentin was exposed. Finishing on wet sand paper removed the gold flash caused by grinding. After sterilization, the specimens were subjected to bacterial microleakage in a dual chamber apparatus for 60 days. Bacterial leakage was checked daily. Data were analyzed using the Kaplan-Meier survival test. Significant pairwise differences were analyzed using the log-rank test followed by Fisher exact test at a p<0.05 level of significance. RESULTS Rely X Luting Plus showed the lowest microleakage scores, which statistically differed significantly from Maxcem Elite and Ketac Cem (p<0.05). CONCLUSIONS Rely X Luting Plus cement displayed significantly lower microleakage scores than a self-adhesive resin-based and conventional glass ionomer cement.
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Hitz T, Stawarczyk B, Fischer J, Hämmerle CH, Sailer I. Are self-adhesive resin cements a valid alternative to conventional resin cements? A laboratory study of the long-term bond strength. Dent Mater 2012; 28:1183-90. [DOI: 10.1016/j.dental.2012.09.006] [Citation(s) in RCA: 68] [Impact Index Per Article: 5.7] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/03/2012] [Revised: 08/19/2012] [Accepted: 09/07/2012] [Indexed: 11/16/2022]
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Zicari F, Van Meerbeek B, Scotti R, Naert I. Effect of ferrule and post placement on fracture resistance of endodontically treated teeth after fatigue loading. J Dent 2012; 41:207-15. [PMID: 23069329 DOI: 10.1016/j.jdent.2012.10.004] [Citation(s) in RCA: 47] [Impact Index Per Article: 3.9] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/17/2011] [Revised: 06/15/2012] [Accepted: 10/06/2012] [Indexed: 11/27/2022] Open
Abstract
OBJECTIVES To evaluate the influence of the ferrule effect (1) and the fibre-post placement (2) on the fracture resistance of endodontically treated teeth subjected to cyclic fatigue loading. METHODS 40 extracted single-rooted upper pre-molars were sectioned at the CEJ (groups a and b) or 2mm above the CEJ (groups c and d), and subsequently endodontically treated. After 24-h water storage at 37°C, specimens were restored according to four build-up approaches (n=10 per group): (a) NF-NP (no ferrule, no post), (b) NF-P (no ferrule, fibre-post), (c) F-NP (ferrule, no post) and (d) F-P (ferrule, fibre post). RelyX Posts (3M-ESPE) were used in groups NF-P and F-P, and were cemented with Panavia F 2.0 (Kuraray). A standardized composite core was built, after which specimens were restored with an all-ceramic crown (IPS Empress CAD, Ivoclar-Vivadent) Specimens were fatigued by exposure to 1,200,000 cycles using a chewing simulator (Willytech). All specimens that survived fatigue loading were fractured using a universal loading device (Micro-Tester, Instron). A two-way analysis of variance was used to determine the statistical significance of the factors ferrule and post on fracture resistance. RESULTS Only one NF-NP specimen failed under fatigue. The ferrule effect significantly enhanced the fracture resistance of the restored teeth, regardless the use of a post (p=0.003). F-NP obtained the highest fracture resistance (758.52±121.89N), which was not significantly different from F-P (647.58±132.95N); NF-NP presented the lowest fracture resistance (361.52±151.69N). For all groups, only 'repairable' failures were recorded. CONCLUSIONS Avoiding extra-removal of sound tooth structure, rather than placing a fibre post, can protect endodontically treated teeth against catastrophic failure. However, when any ferrule can be preserved, a fibre-post may improve the retention and fatigue resistance of the restoration.
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Affiliation(s)
- F Zicari
- Leuven BIOMAT Research Cluster, Department of Prosthetic Dentistry, School of Dentistry, Oral Pathology and Maxillo-Facial Surgery, Catholic University of Leuven, Belgium.
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Four-year clinical evaluation of a self-adhesive luting agent for ceramic inlays. Clin Oral Investig 2012; 17:739-50. [DOI: 10.1007/s00784-012-0762-9] [Citation(s) in RCA: 28] [Impact Index Per Article: 2.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/20/2012] [Accepted: 05/23/2012] [Indexed: 10/28/2022]
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Bond strength of self-adhesive resin cements to different treated indirect composites. Clin Oral Investig 2012; 17:717-24. [DOI: 10.1007/s00784-012-0752-y] [Citation(s) in RCA: 15] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/09/2010] [Accepted: 05/07/2012] [Indexed: 10/28/2022]
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Dabsie F, Grégoire G, Sharrock P. Critical Surface Energy of Composite Cement Containing MDP (10-Methacryloyloxydecyl Dihydrogen Phosphate) and Chemical Bonding to Hydroxyapatite. JOURNAL OF BIOMATERIALS SCIENCE-POLYMER EDITION 2012; 23:543-54. [DOI: 10.1163/092050611x554480] [Citation(s) in RCA: 6] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 11/19/2022]
Affiliation(s)
- Firas Dabsie
- a Faculty of Odontology, University of Toulouse III, 3 Chemin des Maraîchers, 31062 Toulouse Cedex 9, France
| | - Geneviève Grégoire
- b Faculty of Odontology, University of Toulouse III, 3 Chemin des Maraîchers, 31062 Toulouse Cedex 9, France
| | - Patrick Sharrock
- c LERISM, University of Toulouse III, Avenue Pompidou, Castres, France
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Zicari F, Van Meerbeek B, Scotti R, Naert I. Effect of fibre post length and adhesive strategy on fracture resistance of endodontically treated teeth after fatigue loading. J Dent 2012; 40:312-21. [DOI: 10.1016/j.jdent.2012.01.006] [Citation(s) in RCA: 46] [Impact Index Per Article: 3.8] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/11/2011] [Revised: 01/10/2012] [Accepted: 01/11/2012] [Indexed: 11/16/2022] Open
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Peutzfeldt A, Sahafi A, Flury S. Bonding of restorative materials to dentin with various luting agents. Oper Dent 2011; 36:266-73. [PMID: 21740244 DOI: 10.2341/10-236-l] [Citation(s) in RCA: 66] [Impact Index Per Article: 5.1] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/23/2022]
Abstract
The aim was to compare eight types of luting agents when used to bond six indirect, laboratory restorative materials to dentin. Cylinders of the six restorative materials (Esteticor Avenir [gold alloy], Tritan [titanium], NobelRondo [feldspathic porcelain], Finesse All-Ceramic [leucite-glass ceramic], Lava [zirconia], and Sinfony [resin composite]) were ground and air-abraded. Cylinders of feldspathic porcelain and glass ceramic were additionally etched with hydrofluoric acid and were silane-treated. The cylinders were luted to ground human dentin with eight luting agents (DeTrey Zinc [zinc phosphate cement], Fuji I [conventional glass ionomer cement], Fuji Plus [resin-modified glass ionomer cement], Variolink II [conventional etch-and-rinse resin cement], Panavia F2.0 and Multilink [self-etch resin cements], and RelyX Unicem Aplicap and Maxcem [self-adhesive resin cements]). After water storage at 37°C for one week, the shear bond strength of the specimens (n=8/group) was measured, and the fracture mode was stereomicroscopically examined. Bond strength data were analyzed with two-factorial analysis of variance (ANOVA) followed by Newman-Keuls' Multiple Range Test (α=0.05). Both the restorative material and the luting agent had a significant effect on bond strength, and significant interaction was noted between the two variables. Zinc phosphate cement and glass ionomer cements produced the lowest bond strengths, whereas the highest bond strengths were found with the two self-etch and one of the self-adhesive resin cements. Generally, the fracture mode varied markedly with the restorative material. The luting agents had a bigger influence on bond strength between restorative materials and dentin than was seen with the restorative material.
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Affiliation(s)
- A Peutzfeldt
- Department of Preventive, Restorative and Pediatric Dentistry, University of Bern, Bern, Switzerland.
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FERRACANE JL, STANSBURY JW, BURKE FJT. Self-adhesive resin cements - chemistry, properties and clinical considerations. J Oral Rehabil 2010; 38:295-314. [DOI: 10.1111/j.1365-2842.2010.02148.x] [Citation(s) in RCA: 268] [Impact Index Per Article: 19.1] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/29/2022]
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Mayoral JR, Gregor L, Campos EA, Roig M, Krejci I. Marginal seal stability of one bottle adhesives in Class V vs. Class I cavities. Clin Oral Investig 2010; 15:257-64. [PMID: 20049493 DOI: 10.1007/s00784-009-0372-3] [Citation(s) in RCA: 5] [Impact Index Per Article: 0.4] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/27/2009] [Accepted: 12/07/2009] [Indexed: 11/27/2022]
Abstract
The aim of this study was to test the influence of two different cavity configurations on marginal stability of recent one bottle "etch & rinse" and "self-etch" adhesives in Class V vs. Class I cavities, before and after thermo-mechanical loading under simulation of dentinal fluid. Forty human upper molars were selected and assigned to five experimental groups. Intrapulpal pressure was maintained during cavity preparation, restoration placement, finishing and stressing. Standardized Class I and V-Shaped Class V cavities were prepared on each tooth. Half of the margins of Class V cavities were located in enamel and half in dentin. All cavities were restored with different adhesives systems and a nano-hybrid composite. Materials were light-cured using a LED unit. Restored teeth were loaded in a computer-controlled chewing machine with 1.2 million mechanical occlusal cycles simultaneously with 3,000 thermal cycles (5-50-5°C). Impressions were made with polyvinylsiloxane of each restoration before and after loading. Gold-coated epoxy replicas were prepared for SEM examination at ×200 magnification. Significant differences between materials were found both before and after loading (Kruskal-Wallis, Bonferroni, p < 0.05). Significant differences were also found between Class I and V restorations (Wilcoxon Matched-Pairs Signed-Rank Test, p < 0.05). Even before thermo-mechanical loading, none of the groups had 100% continuous margin. Marginal seal stability of recent one bottle "etch & rinse" and "self-etch" adhesives are significantly different and susceptible to cavity configuration.
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Affiliation(s)
- Juan R Mayoral
- Department of Restorative Dentistry, International University of Catalonia, Barcelona, Spain.
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