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Survival of implant-supported resin-matrix ceramic crowns: In silico and fatigue analyses by Edmara T.P. Bergamo; Satoshi Yamaguchi; Paulo G. Coelho; Adolfo C.O. Lopes; Chunwoo Lee; Gerson Bonfante; Ernesto B. Benalcázar Jalkh; Everardo N.S. de Araujo-Júnior; Estevam A. Bonfante is a Dentistry article available to read on EtoBox.
What is Survival of implant-supported resin-matrix ceramic crowns: In silico and fatigue analyses about?
Objective. To evaluate the fatigue survival, failure mode, and maximum principal stress (MP Stress) and strain (MP Strain) of resin-matrix ceramic systems used for implant-supported crowns. Methods. Identical molar crowns were milled using four resin-matrix ceramics (n = 21/material): (i) Shofu Hard, (ii) Cerasmart (iii) Enamic, and (iv) Shofu HC. Crowns were cemented on the abutments, and the assembly underwent step-stress accelerated-life testing. Use level probability Weibull curves at 300 N were plotted and the reliability at 300, 500 and 800 N was calculated for a mission of 50,000 cycles. Fractographic analysis was performed using stereomicroscope and scanning electron microscope. MP Stress and MP Strain were determined by finite element analysis. Results. While fatigue dictated failures for Cerasmart ( > 1), material strength controlled Shofu Hard, Enamic, and Shofu HC failures ( 90%), statistically different at 500 N. Enamic (57%) exhibited a significant reduction in the probability of survival at 800 N, significantly lower than Shofu Hard and Cerasmart; however, higher than Shofu HC (12%). Shofu Hard and Cerasmart (>93%) demonstrated no significant difference for any ca
Who reads Survival of implant-supported resin-matrix ceramic crowns: In silico and fatigue analyses?
It is typically read by researchers, students, and practitioners in Dentistry.
- Author
- Edmara T.P. Bergamo; Satoshi Yamaguchi; Paulo G. Coelho; Adolfo C.O. Lopes; Chunwoo Lee; Gerson Bonfante; Ernesto B. Benalcázar Jalkh; Everardo N.S. de Araujo-Júnior; Estevam A. Bonfante
- Publisher
- Elsevier BV
- Published
- 2021
- Language
- EN
- Field
- Dentistry (Health Sciences)