Effect of cavity geometry and restorative material on gap formation (in vitro) and shrinkage stress (in silico) in Class V restorations

• Grant number: 16/19756-6
• Support Opportunities: Scholarships in Brazil - Scientific Initiation
• Start date: January 01, 2017
• End date: December 31, 2017
• Field of knowledge: Health Sciences - Dentistry - Dental Clinics
• Principal Investigator: Taciana Marco Ferraz Caneppele
• Grantee: Mariana Rocha Andrade
• Host Institution: Instituto de Ciência e Tecnologia (ICT). Universidade Estadual Paulista (UNESP). Campus de São José dos Campos. São José dos Campos , SP, Brazil

Abstract

Objective: To evaluate the effect of cavity geometry and restorative material on gap formation and shrinkage stress in class V restorations. Material and Methods: Sixty bovine incisors will be used for preparation of class V cavities. Samples will be divided into two groups (n=30) according to the extent the class V cavity (large or small). Subsequently, the cavities will be restored with conventional resin composite or "bulk-fill" resin. The marginal gaps will be analyzed in stereomicroscope before and after 15,000 cycles of thermal cycling. The same cavity geometries carried out in bovine teeth will be drawn on computer, for finite element analysis, in order to analyze the tensions generated by the polymerization shrinkage. Data will be collected and subjected to statistical analysis. (AU)

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)

CORREIA, A. M. O.; ANDRADE, M. R.; TRIBST, J. P. M.; BORGES, A. L. S.; CANEPPELE, T. M. F.. Influence of Bulk-fill Restoration on Polymerization Shrinkage Stress and Marginal Gap Formation in Class V Restorations. Operative Dentistry, v. 45, n. 4, p. E207-E216, JUL-AUG 2020. (16/19756-6)