Laura Vitória Rizzatto, Daniel Meneghetti, Marielle Di Domênico, Júlia Cadorin Facenda, Katia Raquel Weber, Pedro Henrique Corazza, Márcia Borba
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Bonded specimens were subjected to a mechanical aging protocol (50 N, 2 Hz, 37℃ water, 500,000 cycles) before the compressive load test (L<sub>f</sub>). σ<sub>f</sub> and L<sub>f</sub> data were analyzed using two-way ANOVA and Tukey tests (α = .05). Chi-square test was used to analyze the relationship between failure mode and experimental group (α = .05).</p><p><strong>Results: </strong>The type of resin cement and the interaction between factors had no effect on the σ<sub>f</sub> and L<sub>f</sub> of the specimens, while the type of restorative material was significant. RNC had higher σ<sub>f</sub> and L<sub>f</sub> than PICN. There was a significant association among the type of cracks identified for specimens tested in L<sub>f</sub> and the restorative material.</p><p><strong>Conclusion: </strong>The type of resin cement had no effect on the flexural strength and load to fracture of the two investigated CAD-CAM chairside materials after aging.</p>","PeriodicalId":51291,"journal":{"name":"Journal of Advanced Prosthodontics","volume":"15 3","pages":"136-144"},"PeriodicalIF":2.7000,"publicationDate":"2023-06-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"https://ftp.ncbi.nlm.nih.gov/pub/pmc/oa_pdf/44/c0/jap-15-136.PMC10333098.pdf","citationCount":"0","resultStr":"{\"title\":\"Effect of the type of resin cement on the fracture resistance of chairside CAD-CAM materials after aging.\",\"authors\":\"Laura Vitória Rizzatto, Daniel Meneghetti, Marielle Di Domênico, Júlia Cadorin Facenda, Katia Raquel Weber, Pedro Henrique Corazza, Márcia Borba\",\"doi\":\"10.4047/jap.2023.15.3.136\",\"DOIUrl\":null,\"url\":null,\"abstract\":\"<p><strong>Purpose: </strong>The study objective was to evaluate the influence of the type of resin cement on the flexural strength and load to fracture of two chairside CAD-CAM materials after aging.</p><p><strong>Materials and methods: </strong>A polymer-infiltrated ceramic network (PICN) and a nanoceramic resin (RNC) were used to produce the specimens. Two types of dual-cure resin cements, a self-adhesive and a universal, were investigated. Bilayer specimens were produced (n = 10) and aged for 6 months in a humid environment before the biaxial flexural strength test (σ<sub>f</sub>). Bonded specimens were subjected to a mechanical aging protocol (50 N, 2 Hz, 37℃ water, 500,000 cycles) before the compressive load test (L<sub>f</sub>). σ<sub>f</sub> and L<sub>f</sub> data were analyzed using two-way ANOVA and Tukey tests (α = .05). Chi-square test was used to analyze the relationship between failure mode and experimental group (α = .05).</p><p><strong>Results: </strong>The type of resin cement and the interaction between factors had no effect on the σ<sub>f</sub> and L<sub>f</sub> of the specimens, while the type of restorative material was significant. RNC had higher σ<sub>f</sub> and L<sub>f</sub> than PICN. There was a significant association among the type of cracks identified for specimens tested in L<sub>f</sub> and the restorative material.</p><p><strong>Conclusion: </strong>The type of resin cement had no effect on the flexural strength and load to fracture of the two investigated CAD-CAM chairside materials after aging.</p>\",\"PeriodicalId\":51291,\"journal\":{\"name\":\"Journal of Advanced Prosthodontics\",\"volume\":\"15 3\",\"pages\":\"136-144\"},\"PeriodicalIF\":2.7000,\"publicationDate\":\"2023-06-01\",\"publicationTypes\":\"Journal Article\",\"fieldsOfStudy\":null,\"isOpenAccess\":false,\"openAccessPdf\":\"https://ftp.ncbi.nlm.nih.gov/pub/pmc/oa_pdf/44/c0/jap-15-136.PMC10333098.pdf\",\"citationCount\":\"0\",\"resultStr\":null,\"platform\":\"Semanticscholar\",\"paperid\":null,\"PeriodicalName\":\"Journal of Advanced Prosthodontics\",\"FirstCategoryId\":\"3\",\"ListUrlMain\":\"https://doi.org/10.4047/jap.2023.15.3.136\",\"RegionNum\":3,\"RegionCategory\":\"医学\",\"ArticlePicture\":[],\"TitleCN\":null,\"AbstractTextCN\":null,\"PMCID\":null,\"EPubDate\":\"\",\"PubModel\":\"\",\"JCR\":\"Q1\",\"JCRName\":\"DENTISTRY, ORAL SURGERY & MEDICINE\",\"Score\":null,\"Total\":0}","platform":"Semanticscholar","paperid":null,"PeriodicalName":"Journal of Advanced Prosthodontics","FirstCategoryId":"3","ListUrlMain":"https://doi.org/10.4047/jap.2023.15.3.136","RegionNum":3,"RegionCategory":"医学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":null,"EPubDate":"","PubModel":"","JCR":"Q1","JCRName":"DENTISTRY, ORAL SURGERY & MEDICINE","Score":null,"Total":0}
Effect of the type of resin cement on the fracture resistance of chairside CAD-CAM materials after aging.
Purpose: The study objective was to evaluate the influence of the type of resin cement on the flexural strength and load to fracture of two chairside CAD-CAM materials after aging.
Materials and methods: A polymer-infiltrated ceramic network (PICN) and a nanoceramic resin (RNC) were used to produce the specimens. Two types of dual-cure resin cements, a self-adhesive and a universal, were investigated. Bilayer specimens were produced (n = 10) and aged for 6 months in a humid environment before the biaxial flexural strength test (σf). Bonded specimens were subjected to a mechanical aging protocol (50 N, 2 Hz, 37℃ water, 500,000 cycles) before the compressive load test (Lf). σf and Lf data were analyzed using two-way ANOVA and Tukey tests (α = .05). Chi-square test was used to analyze the relationship between failure mode and experimental group (α = .05).
Results: The type of resin cement and the interaction between factors had no effect on the σf and Lf of the specimens, while the type of restorative material was significant. RNC had higher σf and Lf than PICN. There was a significant association among the type of cracks identified for specimens tested in Lf and the restorative material.
Conclusion: The type of resin cement had no effect on the flexural strength and load to fracture of the two investigated CAD-CAM chairside materials after aging.
期刊介绍：
This journal aims to convey scientific and clinical progress in the field of prosthodontics and its related areas to many dental communities concerned with esthetic and functional restorations, occlusion, implants, prostheses, and biomaterials related to prosthodontics.
This journal publishes
• Original research data of high scientific merit in the field of diagnosis, function, esthetics and stomatognathic physiology related to prosthodontic rehabilitation, physiology and mechanics of occlusion, mechanical and biologic aspects of prosthodontic materials including dental implants.
• Review articles by experts on controversies and new developments in prosthodontics.
• Case reports if they provide or document new fundamental knowledge.
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