SHEAR RESISTANCE AND FATIGUE SURVIVAL OF LITHIUM DISILICATE CEMENTED TO PEEK AND FIBERGLASS REINFORCED POLYMER

• Grant number: 23/13690-7
• Support Opportunities: Scholarships in Brazil - Master
• Start date: July 01, 2024
• End date: June 30, 2026
• Field of knowledge: Health Sciences - Dentistry - Dental Materials
• Principal Investigator: Renata Marques de Melo Marinho
• Grantee: Bruna Oliveira Campos
• 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

Currently dentistry has increased the search for dental materials with pleasant esthetics and excellent mechanical properties. Polyetheretherketone (PEEK-Plenum) and glass-fiber reiforced polymer (ZANTEX) are comercial examples of new polymeric materials for oral rehabiliations. This project aims to test the strenght bond between lithium dissilicate and the above mentioned polymers using sandbasting or a self-etching single component primer (Monobond Etch& Prime- Ivoclar Vivadent). This study also aims to investigate the cumulative falilure probability of after step-wise stress fatigue testing of lithium dissilicate cemented to Peek and fiber-glass reiforced Polymer. The data will be submitted to Anova 2-Way or post-hoc de Kaplan Meier and Log-Rank Mantel-Cox tests (p<0,05).