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Karakaya K, Mutluay Ünal S. Evaluation of stress distribution of different marginal designs on PEEK and PEKK substructure materials, cortical and cancellous Bone:A finite element analysis. Comput Biol Med 2024; 178:108708. [PMID: 38861895 DOI: 10.1016/j.compbiomed.2024.108708] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/18/2024] [Revised: 06/01/2024] [Accepted: 06/03/2024] [Indexed: 06/13/2024]
Abstract
BACKGROUND High-performance polymers are used in different fixed prosthesis treatments due to their many advantages such as biocompatibility, shock absorption ability, high fracture resistance. The effects of marginal design on the forces on high-performance polymers are unknown. This study aimed was to investigate the stress distribution of different marginal designs on Polyetheretherketone (PEEK) and Polyetherketoneketone (PEKK) substructure materials, cortical bone and cancellous bone by finite element analysis. METHODS A first maxillary molar tooth was modeled in 3D using the "3D Complex Render" method. Considering the ideal preparation conditions (Taper angle was 6°, step depth was 1 mm, occlusal reduction was 2 mm), four different configurations were modeled by changing the marginal design (chamfer, deep chamfer, shoulder 90°, shoulder 135°). PEEK, PEKK substructure, and composite superstructure were designed on created models. A total of 150 N oblique force from two points and a total of 300 N vertical force from three points were applied from occlusall. and the maximum principal stress, minimum principal stress, von Mises stress findings in the cortical bone, spongiose bone, and substructure were examined. The study was carried out by static linear analysis with a three-dimensional finite element stress analysis method. RESULTS The highest maximum principal stress value in the cortical bone was observed when the PEEK + Shoulder 135° step at vertical force. The highest minimum principal stress value in the cortical bone was observed when the PEEK + Shoulder 90° step, and PEEK + deep chamfer step at oblique force. The highest maximum principal stress value in spongiose bone was observed when the PEEK + Shoulder 90° step. The highest minimum principal stress value in spongiose bone was observed when the PEEK + deep chamfer step at vertical force. The highest von Mises stress value in the substructure was observed when the PEKK + Deep chamfer step at oblique force. The lowest maximum principal stress value in the cortical bone was observed when the PEKK + Shoulder 135° step at oblique force. The lowest minimum principal stress value in the cortical bone was observed when the PEEK + Shoulder 135° step, and PEKK + shoulder 135° step at vertical force. The lowest maximum principal stress value in spongiose bone was observed when the PEEK + Shoulder 90° step. The lowest minimum principal stress value in spongiose bone was observed when the PEEK + Shoulder 135° step and PEKK + Shoulder 135° step at vertical force. The lowest von Mises stress value in the substructure was observed when the PEEK + Deep chamfer step at vertical force. CONCLUSION When cortical and spongiose bone stress were evaluated, no destructive stress was observed. Considering the stresses occurring in the substructure the highest stress was observed in the chamfer step.
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Affiliation(s)
- Kevser Karakaya
- Afyonkarahisar Health Sciences University, Faculty of Dentistry, Department of Prosthodontics, Afyonkarahisar, Turkey.
| | - Server Mutluay Ünal
- Afyonkarahisar Health Sciences University, Faculty of Dentistry, Department of Prosthodontics, Afyonkarahisar, Turkey.
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Alammar A, Blatz MB. The resin bond to high‐translucent zirconia—A systematic review. J ESTHET RESTOR DENT 2022; 34:117-135. [DOI: 10.1111/jerd.12876] [Citation(s) in RCA: 4] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/02/2021] [Revised: 12/20/2021] [Accepted: 12/31/2021] [Indexed: 02/01/2023]
Affiliation(s)
- Amirah Alammar
- Sijam Medical Center, Private Practice Riyadh Saudi Arabia
| | - Markus B. Blatz
- School of Dental Medicine, Department of Preventive and Restorative Sciences University of Pennsylvania Philadelphia Pennsylvania USA
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Watanabe F, Seto M, Ueda K, Ozawa M. Fracture force for veneered materials on restorations measured by torsion testing. Dent Mater J 2018; 37:592-598. [PMID: 29593160 DOI: 10.4012/dmj.2016-432] [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 torsional fracture strength at the interface between a base plate and veneering material was evaluated for three kinds of veneered restoration: porcelain fused to zirconia (PFZ), porcelain fused to metal (PFM), and composite resin veneered metal (CRVM). The metal and zirconia base plate (30×4×0.4 mm) were prepared and these plates were veneered as test specimens using each material to a total thickness of 1.2 mm. Torsional force was applied to each specimen using a rotational speed of 1.0 deg/min until the veneering material underwent fracture or exfoliation. The torsional fracture values were measured and the data were statistically analyzed using one-way ANOVA. The torsional fracture strength for PFZ, PFM, and CRVM was 3.0, 3.1, and 11.1 N•cm, respectively.
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Affiliation(s)
- Fumihiko Watanabe
- Department of Crown and Bridge Prosthodontics, School of Life Dentistry at Niigata, The Nippon Dental University
| | - Munetsugu Seto
- Oral Implant Care Unit, Niigata Hospital, The Nippon Dental University
| | - Kazuhiko Ueda
- Department of Crown and Bridge Prosthodontics, School of Life Dentistry at Niigata, The Nippon Dental University
| | - Makoto Ozawa
- Department of Crown and Bridge Prosthodontics, School of Life Dentistry at Niigata, The Nippon Dental University
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Antunes MCF, Miranda JS, Carvalho RLAD, Carvalho RFD, Kimpara ET, Assunção E Souza ROD, Leite FPP. Can low-fusing glass application affect the marginal misfit and bond strength of Y-TZP crowns? Braz Oral Res 2018; 32:e34. [PMID: 29742232 DOI: 10.1590/1807-3107bor-2018.vol32.0034] [Citation(s) in RCA: 7] [Impact Index Per Article: 1.2] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/04/2017] [Accepted: 03/13/2018] [Indexed: 11/22/2022] Open
Abstract
To evaluate the effect of different surface treatments on the marginal misfit and retentive strength between Y-TZP crowns and an epoxy resin. Forty (40) epoxy resin (G10) abutments (height: 5mm, conicity: 60, finish line: large chamfer) with equal dimensions were milled and included in polyurethane to simulate the periodontal ligament. Next, 40 Y-TZP crowns (thickness: 1mm) were milled (Cerec in Lab) and randomly divided into four groups (n=10) according to the surface treatment: GS(glaze spray), GP(glaze powder/liquid), P(zirconia primer) and RS(tribochemical silica coating). The conditioned surfaces were cemented with dual self-adhesive cement, light cured and submitted to thermomechanical cycling (2x106, 100N, 4Hz, 5°/55°C). Marginal misfit was analyzed by a stereomicroscope and SEM. Retentive strength test was performed (1mm/min) until crown debonding. Glaze layer thickness was also performed to GS and GP groups. Marginal misfit data were analyzed by Kruskal Wallis and Dunn tests; one-way ANOVA and Tukey (5%) analyzed the tensile strength data. The marginal misfit of the GS (48.6±19.9μm) and GP (65.4±42.5μm) were statistically lower than the RS (96±62.9μm) and P (156±113.3μm) (p=0.001). The retentive strength of the GP (470.5±104.1N) and GS (416.8±170.2N) were similar to the P (342.1±109.7N), but statistically higher than those of the RS (208.9±110N). The GS and GP glaze layer was 11.64μm and 9.73μm respectively. Thus, glaze application promoted lower marginal discrepancy and higher retentive strength values than conventional techniques.
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Affiliation(s)
| | - Jean Soares Miranda
- São José dos Campos Dental School, Institute of Science and Technology, Universidade Estadual Paulista - Unesp, São José dos Campos, SP, Brazil
| | - Ronaldo Luís Almeida de Carvalho
- São José dos Campos Dental School, Institute of Science and Technology, Universidade Estadual Paulista - Unesp, São José dos Campos, SP, Brazil
| | | | - Estevão Tomomitsu Kimpara
- São José dos Campos Dental School, Institute of Science and Technology, Universidade Estadual Paulista - Unesp, São José dos Campos, SP, Brazil
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de Pinho Barcellos AS, Marinho CC, Miranda JS, Amaral M, Shiino MY, Kimpara ET. Effect of fatigue protocols on flexural strength of lithium disilicate bars with clamped-ends. J Mech Behav Biomed Mater 2018. [PMID: 29525667 DOI: 10.1016/j.jmbbm.2018.02.007] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/18/2022]
Abstract
The aim of this study was compare the effect of two in vitro ageing protocols to intraoral aging on the flexural strength of a lithium disilicate (LD) ceramic bars with clamped ends. After polishing and crystallization, the both ends of the bars were cemented to a metallic device and subjected to mechanical cycling, thermomechanical cycling, or intraoral ageing. Ten volunteers used an intraoral device - similar to an occlusal splint with a balanced contact condition on the occlusal surface of the ceramic bar - during 8 h night time / 30 days. Both in vitro and intraoral ageing decreased the flexural residual strength of LD, with the lowest values obtained after intraoral ageing. Thus, the in vitro ageing protocols tested in this study revealed to be less deleterious than intraoral ageing of LD.
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Affiliation(s)
| | - Caroline Cotes Marinho
- Institute of Science and Technology, Univ. Estadual Paulista, Sao Jose dos Campos, Sao Paulo, Brazil.
| | - Jean Soares Miranda
- Institute of Science and Technology, Univ. Estadual Paulista, Sao Jose dos Campos, Sao Paulo, Brazil.
| | - Marina Amaral
- Department of Dentistry, University of Taubaté, Taubaté, São Paulo, Brazil.
| | - Marcos Yutaka Shiino
- Institute of Science and Technology, Univ. Estadual Paulista, Sao Jose dos Campos, Sao Paulo, Brazil.
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Karci M, Demir N. Effect of Home Bleaching on the Translucency of CAD/CAM Systems. J Prosthodont 2017; 28:310-314. [DOI: 10.1111/jopr.12701] [Citation(s) in RCA: 6] [Impact Index Per Article: 0.9] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Accepted: 06/20/2017] [Indexed: 11/27/2022] Open
Affiliation(s)
- Muhammet Karci
- Department of Prosthodontics, Selcuk University; Faculty of Dentistry; Konya Turkey
| | - Necla Demir
- Department of Prosthodontics, Selcuk University; Faculty of Dentistry; Konya Turkey
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Luthra R, Kaur P. An insight into current concepts and techniques in resin bonding to high strength ceramics. Aust Dent J 2017; 61:163-73. [PMID: 26268746 DOI: 10.1111/adj.12365] [Citation(s) in RCA: 23] [Impact Index Per Article: 3.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Accepted: 08/06/2015] [Indexed: 11/27/2022]
Abstract
BACKGROUND Reliable bonding between high strength ceramics and resin composite cement is difficult to achieve because of their chemical inertness and lack of silica content. The aim of this review was to assess the current literature describing methods for resin bonding to ceramics with high flexural strength such as glass-infiltrated alumina and zirconia, densely sintered alumina and yttria-partially stabilized tetragonal zirconia polycrystalline ceramic (Y-TZP) with respect to bond strength and bond durability. METHODS Suitable peer reviewed publications in the English language were identified through searches performed in PubMed, Google Search and handsearches. The keywords or phrases used were 'resin-ceramic bond', 'silane coupling agents', 'air particle abrasion', 'zirconia ceramic' and 'resin composite cements'. Studies from January 1989 to June 2015 were included. RESULTS The literature demonstrated that there are multiple techniques available for surface treatments but bond strength testing under different investigations have produced conflicting results. CONCLUSIONS Within the scope of this review, there is no evidence to support a universal technique of ceramic surface treatment for adhesive cementation. A combination of chemical and mechanical treatments might be the recommended solution. The hydrolytic stability of the resin ceramic bond should be enhanced.
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Affiliation(s)
- R Luthra
- Professor, Department of Prosthodontics, Swami Devi Dyal Hospital and Dental College, Barwala, Panchkula, Haryana, India
| | - P Kaur
- Reader, Department of Prosthodontics, Swami Devi Dyal Hospital and Dental College, Barwala, Panchkula, Haryana, India
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Effects of core and veneer thicknesses on the color of CAD-CAM lithium disilicate ceramics. J Prosthet Dent 2017; 119:461-466. [PMID: 28689909 DOI: 10.1016/j.prosdent.2017.04.005] [Citation(s) in RCA: 5] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/30/2016] [Revised: 04/12/2017] [Accepted: 04/12/2017] [Indexed: 11/22/2022]
Abstract
STATEMENT OF PROBLEM The color of dental ceramics is important for achieving successful esthetic restorations. However, insufficient studies are available of the color of recently introduced computer-aided design-computer-aided manufacturing (CAD-CAM) lithium disilicate ceramics as functions of the core and veneer thicknesses. PURPOSE The purpose of this in vitro study was to evaluate the effects of the thickness of different core and veneer thicknesses on the color of CAD-CAM lithium disilicate ceramics. MATERIAL AND METHODS A total of 42 specimens from 2 groups of 7 ceramic cores at 3 thicknesses (0.8, 1.0, and 1.2 mm) were fabricated. The veneer was fabricated at 3 thicknesses (0.3, 0.5, and 0.7 mm). The group name was based on the name of the ceramic core (IPS e.max CAD; lithium disilicate [LD], IPS Empress CAD; leucite-reinforced glass-ceramic [LR]), and the associated number was determined by the combined thicknesses of the core and the veneer: 1=0.8+0.7; 2=1.0+0.5; and 3=1.2+0.3. The color coordinates and the color differences were calculated using a spectrophotometer. The color difference was analyzed using the CIEDE2000 chrominance and the acceptability threshold. Two-way ANOVA was used to identify the color difference based on the core/veneer thicknesses, and the Tukey honest significant differences and Games-Howell tests were conducted to verify the ΔE00 differences of the group (α=.05). In addition, regression analysis was carried out to estimate the causal relationship between the independent variables and the chrominance. RESULTS At a certain thickness, the color differences of LD1, LR1, and LR2 were not clinically acceptable based on the thicknesses of the core and the veneer. Results of 2-way ANOVA demonstrated that the different thicknesses of core/veneer combination significantly affected the color difference (P<.05). A significant interaction was present between the thickness and the material (P<.05). The results of multiple regression analyses showed that the average color difference of LR increased by 0.019 as the thickness of the core decreased by 0.2 mm. CONCLUSIONS The color is influenced by the thicknesses of the core and the veneer. With a certain thickness, the color differences increased as the thickness of the core decreased, and lithium disilicate ceramics were less vulnerable to standard deviation of color difference compared with the leucite-reinforced ceramics.
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de Lima E, Santos R, Durão M, Nascimento A, Braz R. Universal cements: dual activated and chemically activated. ACTA BIOMATERIALIA ODONTOLOGICA SCANDINAVICA 2017. [PMID: 28642922 PMCID: PMC5433229 DOI: 10.1080/23337931.2016.1221314] [Citation(s) in RCA: 5] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Subscribe] [Scholar Register] [Indexed: 11/29/2022]
Abstract
Objective: The aim of the present study was to assess the bond strength of universal cements cured either dually or chemically only. Methods: Three cements were assessed using different types of application: dual activated (DA) or chemically activated (CA). In total 80 dentin blocks were used, obtained through the enamel wear of the lingual and buccal surfaces of bovine incisors. Standard cone-shaped cavity preparations were created using diamond burs. Subsequently, indirect restoration blocks were designed with Filtek Z350 (3M ESPE) composite resin. The teeth were divided into two groups (DA and CA) and then subdivided into four subgroups (n = 10) prior to cementation with the respective products: Duo-Link (Bisco); RelyX Ultimate (3M ESPE); Nexus 3 (Kerr) and conventional RelyX ARC (3M ESPE) as the control. The cementation in the PA group was applied following the manufacturer’s instructions. The CA group was cemented in a darkroom to avoid exposure to light. They were stored in distilled water at 37 °C for 24 h and submitted to the push-out test. Data were analyzed by two-way ANOVA and Tukey’s post-hoc test (p < .05). Results: The greatest bond strength results were obtained for photoactivated universal cements. Conclusion: Chemical activation is not sufficient to ensure acceptable bond strength.
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Affiliation(s)
| | | | - Márcia Durão
- University of PernambucoCamaragibe, RecifeBrazil
| | | | - Rodivan Braz
- University of PernambucoCamaragibe, RecifeBrazil
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Özcan M, Jonasch M. Effect of Cyclic Fatigue Tests on Aging and Their Translational Implications for Survival of All-Ceramic Tooth-Borne Single Crowns and Fixed Dental Prostheses. J Prosthodont 2016; 27:364-375. [DOI: 10.1111/jopr.12566] [Citation(s) in RCA: 33] [Impact Index Per Article: 4.1] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Accepted: 08/10/2016] [Indexed: 11/29/2022] Open
Affiliation(s)
- Mutlu Özcan
- Dental Materials Unit, Center for Dental and Oral Medicine; Clinic for Fixed and Removable Prosthodontics and Dental Materials Science, University of Zürich; Zurich Switzerland
| | - Moritz Jonasch
- Dental Materials Unit, Center for Dental and Oral Medicine; Clinic for Fixed and Removable Prosthodontics and Dental Materials Science, University of Zürich; Zurich Switzerland
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Tzanakakis EGC, Tzoutzas IG, Koidis PT. Is there a potential for durable adhesion to zirconia restorations? A systematic review. J Prosthet Dent 2016; 115:9-19. [DOI: 10.1016/j.prosdent.2015.09.008] [Citation(s) in RCA: 83] [Impact Index Per Article: 10.4] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/17/2014] [Revised: 09/18/2015] [Accepted: 09/22/2015] [Indexed: 10/22/2022]
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Shahrbaf S, van Noort R, Mirzakouchaki B, Ghassemieh E, Martin N. Fracture strength of machined ceramic crowns as a function of tooth preparation design and the elastic modulus of the cement. Dent Mater 2014; 30:234-41. [DOI: 10.1016/j.dental.2013.11.010] [Citation(s) in RCA: 20] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/11/2013] [Revised: 08/21/2013] [Accepted: 11/25/2013] [Indexed: 10/25/2022]
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Selz CF, Strub JR, Vach K, Guess PC. Long-term performance of posterior InCeram Alumina crowns cemented with different luting agents: a prospective, randomized clinical split-mouth study over 5 years. Clin Oral Investig 2013; 18:1695-703. [DOI: 10.1007/s00784-013-1137-6] [Citation(s) in RCA: 16] [Impact Index Per Article: 1.5] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/04/2013] [Accepted: 10/31/2013] [Indexed: 10/26/2022]
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Fracture strength and microstructure of Y-TZP zirconia after different surface treatments. J Prosthet Dent 2013; 110:274-80. [DOI: 10.1016/s0022-3913(13)60376-5] [Citation(s) in RCA: 40] [Impact Index Per Article: 3.6] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/21/2022]
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Lu C, Wang R, Mao S, Arola D, Zhang D. Reduction of load-bearing capacity of all-ceramic crowns due to cement aging. J Mech Behav Biomed Mater 2013; 17:56-65. [DOI: 10.1016/j.jmbbm.2012.08.003] [Citation(s) in RCA: 16] [Impact Index Per Article: 1.5] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/14/2012] [Revised: 07/23/2012] [Accepted: 08/06/2012] [Indexed: 11/15/2022]
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Demir N, Subaşı MG, Ozturk AN. Surface Roughness and Morphologic Changes of Zirconia Following Different Surface Treatments. Photomed Laser Surg 2012; 30:339-45. [DOI: 10.1089/pho.2011.3213] [Citation(s) in RCA: 38] [Impact Index Per Article: 3.2] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/13/2022] Open
Affiliation(s)
- Necla Demir
- Department of Prosthodontics, Faculty of Dentistry, Selcuk University, Konya, Turkey
| | - M. Gülce Subaşı
- Department of Prosthodontics, Faculty of Dentistry, Selcuk University, Konya, Turkey
| | - A. Nilgun Ozturk
- Department of Prosthodontics, Faculty of Dentistry, Selcuk University, Konya, Turkey
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Passos SP, May LG, Barca DC, Özcan M, Bottino MA, Valandro LF. Adhesive Quality of Self-adhesive and Conventional Adhesive Resin Cement to Y-TZP Ceramic Before and After Aging Conditions. Oper Dent 2010; 35:689-96. [DOI: 10.2341/10-157-l] [Citation(s) in RCA: 46] [Impact Index Per Article: 3.3] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/23/2022]
Abstract
Clinical Relevance
Chairside tribochemical silica coating and silanization on the YTZP surface appears to be essential to adhere this substrate to resin cements. Cleaning with isopropanol promotes weak and unstable resin adhesion.
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Jung YS, Lee JW, Choi YJ, Ahn JS, Shin SW, Huh JB. A study on the in-vitro wear of the natural tooth structure by opposing zirconia or dental porcelain. J Adv Prosthodont 2010; 2:111-5. [PMID: 21165280 PMCID: PMC2994695 DOI: 10.4047/jap.2010.2.3.111] [Citation(s) in RCA: 106] [Impact Index Per Article: 7.6] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/06/2010] [Revised: 08/30/2010] [Accepted: 09/06/2010] [Indexed: 11/08/2022] Open
Abstract
PURPOSE This study was conducted to evaluate clinical validity of a zirconia full-coverage crown by comparing zirconia's wear capacity over antagonistic teeth with that of feldspathic dental porcelain. MATERIALS AND METHODS THE SUBJECT GROUPS WERE DIVIDED INTO THREE GROUPS: the polished feldspathic dental porcelain group (Group 1), the polished zirconia group (Group 2), and the polished zirconia with glazing group (Group 3). Twenty specimens were prepared from each group. Each procedure such as plasticity, condensation, and glazing was conducted according to the manufacturer's manual. A wear test was conducted with 240,000 chewing cycles using a dual-axis chewing simulator. The degree of wear of the antagonistic teeth was calculated by measuring the volume loss using a three-dimensional profiling system and ANSUR 3D software. The statistical significance of the measured degree of wear was tested with a significant level of 5% using one-way ANOVA and the Tukey test. RESULTS The degrees of wear of the antagonistic teeth were 0.119 ± 0.059 mm(3) in Group 1, 0.078 ± 0.063 mm(3) in Group 3, and 0.031 ± 0.033 mm(3) in Group 2. Statistical significance was found between Group 1 and Groups 2 and between Group 2 and 3, whereas no statistical significance was found between Group 1 and Group 3. CONCLUSION Despite the limitations of this study on the evaluation of antagonistic teeth wear, the degree of antagonistic tooth wear was less in zirconia than feldspathic dental porcelain, representing that the zirconia may be more beneficial in terms of antagonistic tooth wear.
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Affiliation(s)
- Yu-Seok Jung
- Advanced Prosthodontics, Graduate School of Clinical Dentistry, Korea University, Seoul, Korea
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Effect of different surface pre-treatments and luting materials on shear bond strength to PEEK. Dent Mater 2010; 26:553-9. [PMID: 20206986 DOI: 10.1016/j.dental.2010.02.003] [Citation(s) in RCA: 129] [Impact Index Per Article: 9.2] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/23/2009] [Revised: 12/16/2009] [Accepted: 02/01/2010] [Indexed: 11/21/2022]
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Heikkinen TT, Matinlinna JP, Vallittu PK, Lassila LVJ. Effect of Primers and Resins on the Shear Bond Strength of Resin Composite to Zirconia. ACTA ACUST UNITED AC 2010. [DOI: 10.3814/2010/295137] [Citation(s) in RCA: 4] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/30/2022]
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Koizumi H, Nakayama D, Oba Y, Yamada K, Matsumura H. Effect of acidic primers on adhesive bonding of tri-n-butylborane initiated adhesive resin to alumina. J Oral Sci 2010; 52:571-6. [DOI: 10.2334/josnusd.52.571] [Citation(s) in RCA: 4] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/01/2022]
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Mörmann W, Wolf D, Ender A, Bindl A, Göhring T, Attin T. Effect of Two Self-Adhesive Cements on Marginal Adaptation and Strength of Esthetic Ceramic CAD/CAM Molar Crowns. J Prosthodont 2009; 18:403-10. [DOI: 10.1111/j.1532-849x.2009.00461.x] [Citation(s) in RCA: 25] [Impact Index Per Article: 1.7] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/29/2022] Open
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The influence of veneering porcelain thickness of all-ceramic and metal ceramic crowns on failure resistance after cyclic loading. J Prosthet Dent 2009; 101:119-27. [DOI: 10.1016/s0022-3913(09)60006-8] [Citation(s) in RCA: 57] [Impact Index Per Article: 3.8] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/23/2022]
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Holderegger C, Sailer I, Schuhmacher C, Schläpfer R, Hämmerle C, Fischer J. Shear bond strength of resin cements to human dentin. Dent Mater 2008; 24:944-50. [DOI: 10.1016/j.dental.2007.11.021] [Citation(s) in RCA: 77] [Impact Index Per Article: 4.8] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/15/2007] [Accepted: 11/15/2007] [Indexed: 11/30/2022]
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Cekic I, Ergun G, Uctasli S, Lassila LVJ. In vitro evaluation of push-out bond strength of direct ceramic inlays to tooth surface with fiber-reinforced composite at the interface. J Prosthet Dent 2007; 97:271-8. [PMID: 17547945 DOI: 10.1016/j.prosdent.2007.04.002] [Citation(s) in RCA: 8] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/23/2022]
Abstract
STATEMENT OF PROBLEM Failure of a restoration, where a part of a ceramic inlay and/or a cusp is fractured, is a common clinical problem. The application of fiber-reinforced composites at the tooth-inlay interface may prevent undesirable fractures in dental restorations. There is little information regarding the effect of a fiber- reinforced composite layer on the push-out bond strength of ceramic inlays to tooth structure. PURPOSE The purpose of this study was to compare push-out bond strengths of ceramic inlays to tooth structure using a layer of fiber weave-reinforced composite at the tooth interface with different adhesive systems. MATERIAL AND METHODS Forty standardized occlusal, conically-shaped cavities, 5 mm in occlusal diameter, 3.5 mm in cervical diameter and 3.5 mm deep, were prepared in extracted human molars using a truncated cone-shaped diamond rotary cutting instrument, the dimensions of which corresponded with those of prefabricated ceramic inlays. The teeth were divided into 2 groups according to the adhesive system used. Solobond Plus was used as a total-etching system and Futurabond NR as a self-etching system. Preetched and silanized ceramic inlays were bonded to tooth structure with or without a layer of bidirectional fiber weave (StickTech). The groups without fiber-reinforced composite layer served as controls. The inlays were cemented with dual-polymerizing luting composite (Bifix QM) and light polymerized for 40 seconds from the buccal, lingual, and occlusal surfaces. Specimens were thermal cycled (6000 x 5 degrees -55 degrees C) and 3.5-mm-thick discs were prepared for the push-out test. The discs (n=10) were tested in a universal testing machine and pushed out with a cross-head speed of 1.0 mm/min. The data were analyzed with analysis of variance (ANOVA) (alpha=.05). Failure modes were analyzed using a stereomicroscope and SEM. RESULTS Push-out mean bond strength (SD) values in MPa of direct ceramic inlays were: Solobond Plus (control): 9.7 (3.9), Solobond Plus with fiber-reinforced composite: 10.5 (5.0), Futurabond NR (control): 8.4 (2.5), Futurabond NR with fiber-reinforced composite: 8.6 (2.2). The differences between groups were not significant for either adhesive system or with the use of fiber-reinforced composite layer at the interface. Mixed failures were observed in the control groups, whereas in the fiber-reinforced composite layer groups, failures were mostly cohesive within the fiber layer. No cohesive fracture of the tooth was observed when a layer of fiber weave was placed at the interface. CONCLUSION Within the limitations of this in vitro study, a fiber-reinforced composite layer at the bonding interface of ceramic inlay did not influence the push-out bond strength. Futurabond NR self-etching system and Solobond Plus total-etching system demonstrated similar push-out bond strengths.
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Affiliation(s)
- Isil Cekic
- Department of Prosthodontics, Faculty of Dentistry, Gazi University, Ankara, Turkey.
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SHIMAKURA Y, HOTTA Y, FUJISHIMA A, KUNII J, MIYAZAKI T, KAWAWA T. Bonding Strength of Resin Cement to Silicate Glass Ceramics for Dental CAD/CAM Systems is Enhanced by Combination Treatment of the Bonding Surface. Dent Mater J 2007; 26:713-21. [DOI: 10.4012/dmj.26.713] [Citation(s) in RCA: 12] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/23/2022]
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YAMADA K, KOIZUMI H, KAWAMOTO Y, ISHIKAWA Y, MATSUMURA H, TANOUE N. Effect of Single-liquid Priming Agents on Adhesive Bonding to Aluminum Oxide of a Methacrylic Resin. Dent Mater J 2007; 26:642-6. [DOI: 10.4012/dmj.26.642] [Citation(s) in RCA: 11] [Impact Index Per Article: 0.6] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/23/2022]
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Wolfart M, Lehmann F, Wolfart S, Kern M. Durability of the resin bond strength to zirconia ceramic after using different surface conditioning methods. Dent Mater 2007; 23:45-50. [PMID: 16427692 DOI: 10.1016/j.dental.2005.11.040] [Citation(s) in RCA: 246] [Impact Index Per Article: 14.5] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/14/2005] [Accepted: 11/30/2005] [Indexed: 11/28/2022]
Abstract
OBJECTIVES The purpose of this in vitro study was the evaluation of the bond strength and its durability of two composite resins to zirconia ceramic after using different surface conditioning methods. METHODS Plexiglas tubes filled with composite resin were bonded to zirconia ceramic discs (Cercon) which were either in their original state as supplied by the manufacturer only cleaned in isopropanol or were cleaned with an air-powder-water spray with sodium hydrocarbonate solution or were air abraded (50 microm Al(2)O(3)). Groups of 20 specimens each were bonded either with a conventional composite resin (Variolink II) or with a phosphate monomer (MDP)-containing resin (Panavia F) to the ceramic discs. Subgroups of 10 bonded specimens were stored in distilled water (37 degrees C) for either 3 days or for 150 days. Additionally, the 150 days specimens were thermal cycled 37,500 times. Statistical analyses were conducted with the Wilcoxon rank sum test adjusted by Bonferroni-Holm. RESULTS The initial tensile bond strength (TBS) for Variolink II ranged from 9.0 to 16.6 MPa and were significantly lower (p< or =0.05) than for Panavia F ranging from 18.7 to 45.0 MPa. Air abrasion resulted in significantly higher TBS (p< or =0.01) than the two other surface conditioning methods. After 150 days storage, only the air abraded specimens bonded with Panavia F showed high bond strengths of 39.2 MPa, whereas most other specimens debonded spontaneously or showed very low bond strengths. SIGNIFICANCE The use of the MDP-containing composite resin Panavia F on air abraded zirconia ceramic can be recommended as promising bonding method.
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Affiliation(s)
- Mona Wolfart
- Department of Prosthodontics, Propaedeutics and Dental Materials, Dental School, Christian-Albrechts-University at Kiel, Germany.
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Noncarious Tooth Tissue Loss. Oper Dent 2006. [DOI: 10.1007/3-540-29618-2_5] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/26/2022]
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