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de Matos JDM, Queiroz DA, Nakano LJN, Andrade VC, Ribeiro NDCR, Borges ALS, Bottino MA, Lopes GDRS. Bioengineering Tools Applied to Dentistry: Validation Methods for In Vitro and In Silico Analysis. Dent J (Basel) 2022; 10:dj10080145. [PMID: 36005243 PMCID: PMC9406698 DOI: 10.3390/dj10080145] [Citation(s) in RCA: 6] [Impact Index Per Article: 3.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/13/2022] [Revised: 07/06/2022] [Accepted: 07/27/2022] [Indexed: 11/16/2022] Open
Abstract
This study aimed to evaluate the use of bioengineering tools, finite element analysis, strain gauge analysis, photoelastic analysis, and digital image correlation, in computational studies with greater validity and reproducibility. A bibliographic search was performed in the main health databases PUBMED and Scholar Google, in which different studies, among them, laboratory studies, case reports, systematic reviews, and literature reviews, which were developed in living individuals, were included. Therefore, articles that did not deal with the use of finite element analysis, strain gauge analysis, photoelastic analysis, and digital image correlation were excluded, as well as their use in computational studies with greater validity and reproducibility. According to the methodological analysis, it is observed that the average publication of articles in the Pubmed database was 2.03 and with a standard deviation of 1.89. While in Google Scholar, the average was 0.78 and the standard deviation was 0.90. Thus, it is possible to verify that there was a significant variation in the number of articles in the two databases. Modern dentistry finds in finite element analysis, strain gauge, photoelastic and digital image correlation a way to analyze the biomechanical behavior in dental materials to obtain results that assist to obtain rehabilitations with favorable prognosis and patient satisfaction.
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Affiliation(s)
- Jefferson David Melo de Matos
- Center for Dental Biomaterials, Department of Restorative Dental Sciences, University of Florida (UF Health), Gainesville, FL 32610, USA
- Department of Biomaterials, Dental Materials, and Prosthodontics, Institute of Science and Technology, São Paulo State University (UNESP), São José dos Campos 12245-000, Brazil
| | - Daher Antonio Queiroz
- Department of Restorative Dentistry & Prosthodontics, The University of Texas Health Science Center at Houston (UTHealth) School of Dentistry, Houston, TX 77054, USA
- Correspondence:
| | - Leonardo Jiro Nomura Nakano
- Department of Biomaterials, Dental Materials, and Prosthodontics, Institute of Science and Technology, São Paulo State University (UNESP), São José dos Campos 12245-000, Brazil
| | - Valdir Cabral Andrade
- Department of Dentistry and Oral and Maxillo Facial Surgery, Universidade Federal de Juiz de Fora UFJF, Governador Valadares 36036-900, Brazil
| | - Nathália de Carvalho Ramos Ribeiro
- Department of Biomaterials, Dental Materials, and Prosthodontics, Institute of Science and Technology, São Paulo State University (UNESP), São José dos Campos 12245-000, Brazil
- Department of Dentistry, Universidade São Francisco (USF), Bragança Paulista 12916-900, Brazil
- Postgraduate Program in Dentistry, Department Dentistry, University of Taubaté (UNITAU), Taubate 12080-000, Brazil
| | - Alexandre Luiz Souto Borges
- Department of Biomaterials, Dental Materials, and Prosthodontics, Institute of Science and Technology, São Paulo State University (UNESP), São José dos Campos 12245-000, Brazil
| | - Marco Antonio Bottino
- Department of Biomaterials, Dental Materials, and Prosthodontics, Institute of Science and Technology, São Paulo State University (UNESP), São José dos Campos 12245-000, Brazil
| | - Guilherme da Rocha Scalzer Lopes
- Department of Biomaterials, Dental Materials, and Prosthodontics, Institute of Science and Technology, São Paulo State University (UNESP), São José dos Campos 12245-000, Brazil
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Li N, Li Y, Gao Y, Jiang L. Biomechanical Assessment of Tilted Mandibular Second Molars with Full-Crown Adjacent to Implant-Supported Restoration: 3D Finite Element Analysis. Int J Gen Med 2022; 15:3459-3470. [PMID: 35378916 PMCID: PMC8976503 DOI: 10.2147/ijgm.s353134] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/09/2022] [Accepted: 03/23/2022] [Indexed: 11/23/2022] Open
Abstract
Purpose Materials and Methods Results Conclusion
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Affiliation(s)
- Ning Li
- Department of Stomatology, Ruijin Hospital, Shanghai Jiao Tong University School of Medicine; College of Stomatology, Shanghai Jiao Tong University, Shanghai, 200025, People’s Republic of China
| | - Yusi Li
- Department of Stomatology, Ruijin Hospital, Shanghai Jiao Tong University School of Medicine; College of Stomatology, Shanghai Jiao Tong University, Shanghai, 200025, People’s Republic of China
| | - Yiming Gao
- Department of Stomatology, Ruijin Hospital, Shanghai Jiao Tong University School of Medicine; College of Stomatology, Shanghai Jiao Tong University, Shanghai, 200025, People’s Republic of China
| | - Liting Jiang
- Department of Stomatology, Ruijin Hospital, Shanghai Jiao Tong University School of Medicine; College of Stomatology, Shanghai Jiao Tong University, Shanghai, 200025, People’s Republic of China
- Correspondence: Liting Jiang; Yiming Gao, Department of Stomatology, Ruijin Hospital, Shanghai Jiao Tong University School of Medicine; College of Stomatology, Shanghai Jiao Tong University, No. 197, The Second Ruijin Road, Huangpu District, Shanghai, 200025, People’s Republic of China, Tel +86 21 64370045, Email ;
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Bueno MG, Tribst JPM, Borges ALS. Canine guidance reconstruction with ceramic or composite resin: A 3D finite element analysis and in vitro wear study. J Prosthet Dent 2022; 127:765.e1-765.e9. [DOI: 10.1016/j.prosdent.2022.01.020] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/18/2021] [Revised: 01/10/2022] [Accepted: 01/10/2022] [Indexed: 11/28/2022]
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da Fonseca GF, de Andrade GS, Dal Piva AMDO, Tribst JPM, Borges ALS. Computer-aided design finite element modeling of different approaches to rehabilitate endodontically treated teeth. J Indian Prosthodont Soc 2018; 18:329-335. [PMID: 30449961 PMCID: PMC6180740 DOI: 10.4103/jips.jips_168_18] [Citation(s) in RCA: 17] [Impact Index Per Article: 2.8] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/14/2018] [Accepted: 08/01/2018] [Indexed: 11/18/2022] Open
Abstract
Background: Carious lesions and dental fractures cause weakening in the dental structure. In these situations, endodontic treatment and prosthetic rehabilitation using an intraradicular post are indicated. However, the postspace preparation of the root canal further weakens the dental remnant, especially if there is no ferrule present. This study aimed to evaluate the stress distribution in endodontically treated upper premolars treated with different rehabilitation approaches. Materials and Methods: An endodontically treated first upper premolar was modeled for finite element analysis. Three different approaches were carried out on this model: rehabilitation with fiberglass post (FCP), endocrown (ECW), or buildup. The models were exported in STEP format to the analysis software (ANSYS 17.2, ANSYS Inc., Houston, TX, USA). The solids were considered isotropic, homogeneous, and linearly elastic. A mechanical, structural static analysis was used as the criterion of maximum principal stress to show regions under tensile stress to evaluate the stress distribution in the restoration, cementation line, and root. A load of 400 N (90°) was applied to the lingual triangular ridge. The values of maximum principal stress in MPa were evaluated through colorimetric graphs. Results: Similar stress concentration was observed for all groups. However, the ECW group presented higher values in the restoration/cement interface and root dentin. Conclusions: All the treatment modalities had favorable mechanical behavior to support the masticatory loads; nevertheless, the ECW group presented a higher risk of detachment failure.
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Affiliation(s)
- Gabriela Fernandes da Fonseca
- Dental Materials and Proshodontics, São Paulo State University (Unesp), Institute of Science and Technology, São José dos Campos/SP, Brazil
| | - Guilherme Schmitt de Andrade
- Dental Materials and Proshodontics, São Paulo State University (Unesp), Institute of Science and Technology, São José dos Campos/SP, Brazil
| | - Amanda Maria de Oliveira Dal Piva
- Dental Materials and Proshodontics, São Paulo State University (Unesp), Institute of Science and Technology, São José dos Campos/SP, Brazil
| | - João Paulo Mendes Tribst
- Dental Materials and Proshodontics, São Paulo State University (Unesp), Institute of Science and Technology, São José dos Campos/SP, Brazil
| | - Alexandre Luiz Souto Borges
- Dental Materials and Proshodontics, São Paulo State University (Unesp), Institute of Science and Technology, São José dos Campos/SP, Brazil
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Endocrown restorations: Influence of dental remnant and restorative material on stress distribution. Dent Mater 2018; 34:1466-1473. [DOI: 10.1016/j.dental.2018.06.012] [Citation(s) in RCA: 43] [Impact Index Per Article: 7.2] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/13/2017] [Revised: 05/08/2018] [Accepted: 06/07/2018] [Indexed: 11/17/2022]
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CAD-FEA modeling and analysis of different full crown monolithic restorations. Dent Mater 2018; 34:1342-1350. [DOI: 10.1016/j.dental.2018.06.024] [Citation(s) in RCA: 60] [Impact Index Per Article: 10.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/08/2018] [Revised: 05/09/2018] [Accepted: 06/07/2018] [Indexed: 11/21/2022]
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Vianna ALSDV, Prado CJD, Bicalho AA, Pereira RADS, Neves FDD, Soares CJ. Effect of cavity preparation design and ceramic type on the stress distribution, strain and fracture resistance of CAD/CAM onlays in molars. J Appl Oral Sci 2018; 26:e20180004. [PMID: 30133672 PMCID: PMC6110459 DOI: 10.1590/1678-7757-2018-0004] [Citation(s) in RCA: 25] [Impact Index Per Article: 4.2] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/25/2018] [Accepted: 05/28/2018] [Indexed: 11/30/2022] Open
Abstract
Objective This study aimed to evaluate the effect of the cavity preparation and ceramic type on the stress distribution, tooth strain, fracture resistance and fracture mode of human molar teeth restored with onlays. Material and Methods Forty-eight molars were divided into four groups (n=12) with assorted combinations of two study factors: BL- conventional onlay preparation with boxes made from leucite ceramic (IPS-Empress CAD, Ivoclar Vivadent); NBL- conservative onlay preparation without boxes made from leucite ceramic; BD- conventional onlay preparation with boxes made from lithium disilicate glass ceramic (IPS e.max CAD, Ivoclar Vivadent); NBL- conservative onlay preparation with boxes made from lithium disilicate glass ceramic cuspal deformation (µS) was measured at 100 N and at maximum fracture load using strain gauge. Fracture resistance (N) was measured using a compression test, and the fracture mode was recorded. Finite element analysis was used to evaluate the stress distribution by modified von Mises stress criteria. The tooth strain and fracture resistance data were analyzed using the Tukey test and two-way ANOVA, and the fracture mode was analyzed by the chi-square test (α=0.05). Results The leucite ceramic resulted in higher tooth deformation at 100 N and lower tooth deformation at the maximum fracture load than the lithium disilicate ceramic (P<0.001). The lithium disilicate ceramic exhibited higher fracture resistance than the leucite ceramic (P<0.001). The conservative onlay resulted in higher fracture strength for lithium disilicate ceramic. Finite element analysis results showed the conventional cavity preparation resulted in higher stress concentration in the ceramic restoration and remaining tooth than the conservative onlay preparation. The conservative onlays exhibited increased fracture resistance, reduced stress concentration and more favorable fracture modes. Conclusion Molars restored with lithium disilicate CAD-CAM ceramic onlays exhibited higher fracture resistance than molars restored with leucite CAD-CAM ceramic onlays.
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Affiliation(s)
- Ana Luíza Serralha de Velloso Vianna
- Departamento de Prótese e Materiais Odontológicos, Faculdade de Odontologia, Universidade Federal de Uberlândia, Uberlândia, Minas Gerais, Brasil
| | - Célio Jesus do Prado
- Departamento de Prótese e Materiais Odontológicos, Faculdade de Odontologia, Universidade Federal de Uberlândia, Uberlândia, Minas Gerais, Brasil
| | - Aline Aredes Bicalho
- Escola Técnica de Saúde, Universidade Federal de Uberlândia, Uberlândia, Minas Gerais, Brasil
| | - Renata Afonso da Silva Pereira
- Departamento de Dentística e Materiais Odontológicos, Faculdade de Odontologia, Universidade Federal de Uberlândia, Uberlândia, Minas Gerais, Brasil
| | - Flávio Domingues das Neves
- Departamento de Oclusão, Prótese Fixa e Materiais Odontológicos, Faculdade de Odontologia, Universidade Federal de Uberlândia, Uberlândia, Minas Gerais, Brasil
| | - Carlos José Soares
- Departamento de Dentística e Materiais Odontológicos, Faculdade de Odontologia, Universidade Federal de Uberlândia, Uberlândia, Minas Gerais, Brasil
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Maroulakos G, He J, Nagy WW. The Post-endodontic Adhesive Interface: Theoretical Perspectives and Potential Flaws. J Endod 2018; 44:363-371. [PMID: 29306531 DOI: 10.1016/j.joen.2017.11.007] [Citation(s) in RCA: 18] [Impact Index Per Article: 3.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/10/2017] [Revised: 10/22/2017] [Accepted: 11/15/2017] [Indexed: 02/01/2023]
Abstract
INTRODUCTION The aim of this review was to analyze the potential of successful bonds of endodontic posts to radicular dentin as well as the limitations of the post-endodontic adhesive interface. METHODS The MEDLINE/PubMed and Web of Science electronic databases were searched. The search was augmented by a manual search of the pertinent bibliographies. RESULTS The post-endodontic adhesive interface finds application in the endodontic cohesive units. Many techniques and materials exist to improve the bond between endodontic posts and resin-based materials as well as between resin-based materials and radicular dentin. Different techniques used for the adhesion of metallic and fiber-reinforced posts are discussed and critically analyzed. CONCLUSIONS Although adhesive cementation of endodontic posts is popular, a long-term predictable bond may be compromised because of procedures related to the endodontic treatment and/or the adhesive cementation procedures. Microleakage and degradation phenomena may further jeopardize the post-endodontic adhesive interface.
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Affiliation(s)
- Georgios Maroulakos
- Department of General Dental Sciences, Marquette University School of Dentistry, Milwaukee, Wisconsin.
| | - Jianing He
- Department of Endodontics, Texas A&M University College of Dentistry, Dallas, Texas
| | - William W Nagy
- Department of Restorative Sciences, Texas A&M University College of Dentistry, Dallas, Texas
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Dal Piva AMDO, Tribst JPM, Souza RODAE, Borges ALS. Influence of Alveolar Bone Loss and Cement Layer Thickness on the Biomechanical Behavior of Endodontically Treated Maxillary Incisors: A 3-dimensional Finite Element Analysis. J Endod 2017; 43:791-795. [DOI: 10.1016/j.joen.2016.11.020] [Citation(s) in RCA: 22] [Impact Index Per Article: 3.1] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/28/2016] [Revised: 11/15/2016] [Accepted: 11/24/2016] [Indexed: 10/19/2022]
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Ha SR. Biomechanical three-dimensional finite element analysis of monolithic zirconia crown with different cement type. J Adv Prosthodont 2015; 7:475-83. [PMID: 26816578 PMCID: PMC4722152 DOI: 10.4047/jap.2015.7.6.475] [Citation(s) in RCA: 22] [Impact Index Per Article: 2.4] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/03/2015] [Revised: 11/26/2015] [Accepted: 12/07/2015] [Indexed: 11/26/2022] Open
Abstract
PURPOSE The objective of this study was to evaluate the influence of various cement types on the stress distribution in monolithic zirconia crowns under maximum bite force using the finite element analysis. MATERIALS AND METHODS The models of the prepared #46 crown (deep chamfer margin) were scanned and solid models composed of the monolithic zirconia crown, cement layer, and prepared tooth were produced using the computer-aided design technology and were subsequently translated into 3-dimensional finite element models. Four models were prepared according to different cement types (zinc phosphate, polycarboxylate, glass ionomer, and resin). A load of 700 N was applied vertically on the crowns (8 loading points). Maximum principal stress was determined. RESULTS Zinc phosphate cement had a greater stress concentration in the cement layer, while polycarboxylate cement had a greater stress concentration on the distal surface of the monolithic zirconia crown and abutment tooth. Resin cement and glass ionomer cement showed similar patterns, but resin cement showed a lower stress distribution on the lingual and mesial surface of the cement layer. CONCLUSION The test results indicate that the use of different luting agents that have various elastic moduli has an impact on the stress distribution of the monolithic zirconia crowns, cement layers, and abutment tooth. Resin cement is recommended for the luting agent of the monolithic zirconia crowns.
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Affiliation(s)
- Seung-Ryong Ha
- Department of Dentistry, Ajou University School of Medicine, Suwon, Republic of Korea
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González-Lluch C, Pérez-González A. Analysis of the effect of design parameters and their interactions on the strength of dental restorations with endodontic posts, using finite element models and statistical analysis. Comput Methods Biomech Biomed Engin 2015; 19:428-39. [DOI: 10.1080/10255842.2015.1034116] [Citation(s) in RCA: 4] [Impact Index Per Article: 0.4] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/23/2022]
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Oyar P. The effects of post-core and crown material and luting agents on stress distribution in tooth restorations. J Prosthet Dent 2014; 112:211-9. [PMID: 24560984 DOI: 10.1016/j.prosdent.2013.10.024] [Citation(s) in RCA: 13] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/12/2013] [Revised: 10/02/2013] [Accepted: 10/02/2013] [Indexed: 11/15/2022]
Affiliation(s)
- Perihan Oyar
- Assistant Professor, Dental Prosthetics Technology Programme, School of Health Services, Hacettepe University, Ankara, Turkey.
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Chen WP, Chen YY, Huang SH, Lin CP. Limitations of Push-out Test in Bond Strength Measurement. J Endod 2013; 39:283-7. [DOI: 10.1016/j.joen.2012.11.002] [Citation(s) in RCA: 53] [Impact Index Per Article: 4.8] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/10/2012] [Revised: 11/02/2012] [Accepted: 11/06/2012] [Indexed: 11/29/2022]
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Raposo LH, Armstrong SR, Maia RR, Qian F, Geraldeli S, Soares CJ. Effect of specimen gripping device, geometry and fixation method on microtensile bond strength, failure mode and stress distribution: Laboratory and finite element analyses. Dent Mater 2012; 28:e50-62. [DOI: 10.1016/j.dental.2012.02.010] [Citation(s) in RCA: 16] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/03/2011] [Revised: 11/29/2011] [Accepted: 02/20/2012] [Indexed: 10/28/2022]
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Juloski J, Radovic I, Goracci C, Vulicevic ZR, Ferrari M. Ferrule Effect: A Literature Review. J Endod 2012; 38:11-9. [PMID: 22152612 DOI: 10.1016/j.joen.2011.09.024] [Citation(s) in RCA: 138] [Impact Index Per Article: 11.5] [Reference Citation Analysis] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/14/2011] [Revised: 09/26/2011] [Accepted: 09/30/2011] [Indexed: 01/21/2023]
Affiliation(s)
- Jelena Juloski
- Department of Fixed Prosthodontics and Dental Materials of Siena, Tuscan School of Dental Medicine, University of Florence and Siena, Siena, Italy.
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Soares CJ, Pereira JC, Valdivia ADCM, Novais VR, Meneses MS. Influence of resin cement and post configuration on bond strength to root dentine. Int Endod J 2011; 45:136-45. [DOI: 10.1111/j.1365-2591.2011.01953.x] [Citation(s) in RCA: 34] [Impact Index Per Article: 2.6] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/26/2022]
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Brosh T, Porat N, Vardimon AD, Pilo R. Appropriateness of viscoelastic soft materials as in vitro simulators of the periodontal ligament. J Oral Rehabil 2011; 38:929-39. [PMID: 21707697 DOI: 10.1111/j.1365-2842.2011.02231.x] [Citation(s) in RCA: 13] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/30/2022]
Abstract
The periodontal ligament is a viscoelastic soft tissue that connects the tooth to the alveolar bone. This tissue should be simulated in numerical as well as in laboratory models. The mechanical properties of this tissue were previously determined ex vivo and in vivo. The aim of the study was to analyse the appropriateness of impression and reline materials used in dentistry to simulate viscoelastic behaviour of the periodontal ligament. Two reline [Durabase (Reliance Dental MFG, Co.) and Soft Liner (GC Corporation)] and two impression [President Plus (Coltene) and Prestige L (Vanini Dental Industry)] materials were examined in recovery and tensile relaxation tests. Recovery: This experiment simulated in vivo test. Roots of a pair of plastic maxillary premolar teeth were covered with each test material and embedded in acryl while maintaining the contact point. A 0·1-mm stainless steel strip, inserted at the contact point and maintained for 10 s, was used to tip the teeth. After removal, the tightness of dental contact point was measured over 30 min by determining the force needed to insert a 0·05-mm metal strip. Tensile relaxation: strips were elongated to 120%, 140% and 160% of their initial length and maintained at that length for 30 min. Two-phase decay function was applied. The results showed that elastic modulus and relaxation behaviour were significantly different between materials. Elastic modulus values were in the same range of those reported in the literature. However, the recovery values and behaviour showed that impression materials, especially President, are the materials of choice for this purpose because they simulated better the in vivo test.
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Affiliation(s)
- T Brosh
- Department of Oral Biology, School of Dental Medicine, Tel Aviv University, Tel Aviv, Israel
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Muraguchi K, Minami H, Minesaki Y, Suzuki S, Tanaka T. A study of self-adhesive resin cements for bonding to silver-palladium-copper-gold alloy -- effect of including primer components in cement base. Dent Mater J 2011; 30:199-205. [PMID: 21422670 DOI: 10.4012/dmj.2010-093] [Citation(s) in RCA: 4] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/23/2022]
Abstract
This study investigated the efficacies of adhesive resin cements (Clearfil SA Luting, Maxcem, G-CEM, RelyX Unicem Clicker, Vitremer Paste) for bonding to Ag-Pd-Cu-Au alloy not surface-pretreated with metal primer. For control, Panavia F 2.0 -developed for use with a proprietary metal primer, Alloy Primer- was tested with and without metal primer application. Pairs of alloy disks (10.0 and 8.0 mm in diameters, 3.0 mm thickness) were air-abraded with alumina and bonded with one of the cements. Shear bond strengths (SBSs) were measured before and after 50,000 times of thermocycling. Among Maxcem, RelyX Unicem Clicker and the control, there were no statistical differences in SBS before and after thermocycling. After thermocycling, Clearfil SA Luting exhibited the highest SBS among all the cements. Results showed that Clearfil SA Luting, Maxcem, and RelyX Unicem Clicker were efficacious for bonding to Ag-Pd-Cu-Au alloy after air abrasion surface treatment for the latter.
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Affiliation(s)
- Koichi Muraguchi
- Fixed Prosthetic Clinic, Kagoshima University Medical and Dental Hospital, 8-35-1 Sakuragaoka, Kagoshima 890-8544, Japan.
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Fiber Post Etching with Hydrogen Peroxide: Effect of Concentration and Application Time. J Endod 2011; 37:398-402. [DOI: 10.1016/j.joen.2010.11.037] [Citation(s) in RCA: 68] [Impact Index Per Article: 5.2] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/16/2010] [Revised: 11/23/2010] [Accepted: 11/30/2010] [Indexed: 11/22/2022]
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