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Influence of ceramic thickness on biomechanical behavior, survival and translucency of monolithic crowns

Grant number: 17/11535-3
Support type:Scholarships in Brazil - Doctorate
Effective date (Start): August 01, 2017
Effective date (End): January 31, 2020
Field of knowledge:Health Sciences - Dentistry - Dental Materials
Cooperation agreement: Coordination of Improvement of Higher Education Personnel (CAPES)
Principal researcher:Marco Antonio Bottino
Grantee:Amanda Maria de Oliveira Dal Piva
Home Institution: Instituto de Ciência e Tecnologia (ICT). Universidade Estadual Paulista (UNESP). Campus de São José dos Campos. São José dos Campos , SP, Brazil
Associated scholarship(s):18/03984-5 - The effect of wear on the shade characterization of different monolithic ceramics, BE.EP.DR


This study aims to evaluate the biomechanical behavior, the fatigue strength and the translucency of monolithic crowns in different thicknesses. For this, total crowns will be made for element 26 in different ceramics: YZHT - high translucency zirconia partially stabilized by yttria (Vita YZ-HT), ZLS - lithium silicate reinforced by zirconium (Vita Suprinity) and PIC - hybrid ceramic Vita Enamic), (all, Vita Zahnfabrick, Bad Sackingen, Germany). Initially, a nonlinear analysis using finite elements will be performed to measure the stress distribution across the structures. For in vitro analysis, 63 conservative preparations for total crown will be machined in epoxy resin that will receive monolithic crowns with minimum thickness (MT) of 0.5 mm and 63 conventional preparations, crowns with MT of 1 mm. Two standard preparations will be scanned and monolithic crowns will be virtually drawn on them, which will be milled and sintered / crystallized according to the manufacturer's recommendations and then allocated into 6 groups (n = 21, N = 126). The crowns will be cemented to the preparations and then three specimens from each group will be submitted to the monotonic compression test, the others will be submitted to the Step stress fatigue test. The failure module will be evaluated by stereomicroscope and scanning electron microscopy. The translucency of the materials in each MT will be evaluated using the transmittance technique. The results will be analyzed statistically and discussed in the literature. (AU)

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Scientific publications
(References retrieved automatically from Web of Science and SciELO through information on FAPESP grants and their corresponding numbers as mentioned in the publications by the authors)
DAL PIVA, AMANDA M. O.; TRIBST, JOAO P. M.; WERNER, ARIE; ANAMI, LILIAN C.; BOTTINO, MARCO A.; KLEVERLAAN, CORNELIS J. Three-body wear effect on different CAD/CAM ceramics staining durability. JOURNAL OF THE MECHANICAL BEHAVIOR OF BIOMEDICAL MATERIALS, v. 103, MAR 2020. Web of Science Citations: 0.
DE OLIVEIRA DAL PIVA, AMANDA MARIA; MENDES TRIBST, JOAO PAULO; SOUTO BORGES, ALEXANDRE LUIZ; DE ASSUNCAO E SOUZA, RODRIGO OTHAVIO; BOTTINO, MARCO ANTONIO. CAD-FEA modeling and analysis of different full crown monolithic restorations. Dental Materials, v. 34, n. 9, p. 1342-1350, SEP 2018. Web of Science Citations: 9.
Academic Publications
(References retrieved automatically from State of São Paulo Research Institutions)
PIVA, Amanda Maria de Oliveira Dal. Influência da espessura da cerâmica no comportamento biomecânico, sobrevivência e na translucidez de coroas monolíticas. 2020. Doctoral Thesis - Universidade Estadual Paulista "Julio de Mesquita Filho" Instituto de Ciência e Tecnologia (Campus de São José dos Campos)..

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