Influence of a nylon fiber reinforcement in flexural strenght and dimensional alteration of acrylic resins

• Grant number: 11/07334-6
• Support Opportunities: Regular Research Grants
• Duration: December 01, 2011 - November 30, 2013
• Field of knowledge: Health Sciences - Dentistry - Dental Materials
• Principal Investigator: Tarcisio Jose de Arruda Paes Junior
• Grantee: Tarcisio Jose de Arruda Paes Junior
• 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

The purpose of this study i to evaluate some properties of acrylic resins when reinforced by a nylon fiber. A microwave heat cured acrylic resin (RAAT) (Vipi-Wave - Vip Dental Ltda) and a self cured acrylic resin hard for rebasing (Tokuso-Tokuyama) will be tested for flexural strength and dimensional stability. Specimens bar shaped 65x10x3mm (n=12) will be analyzed for flexural strength in some situations: RAAT containing or not nylon fibers (modified or not by silica), and RAAT rebased with soft liner in the same conditions related to flexural strength analyses. It will have even established groups for all the possibility of thermocycling method of specimens. Dimensional changes will be checked by analyses of predetermined points measurement on artificial teeth in upper complete dentures (n = 6) and that also will be submitted prior to thermocycling. Three points bending test will be made in a universal testing machine and the results in mega pascal (MPa). Dimensional changes measurement will be made to capture occlusal images before and after polymerization of prosthesis and scanned for the Image Tool. The values obtained will be compiled and submitted to the appropriate statistical analyses. (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)

DE ARRUDA PAES-JUNIOR, TARCISIO JOSE; DE CASTRO, HUMBERTO LAGO; SOUTO BORGES, ALEXANDRE LUIZ; DELLA BONA, ALVARO; PAPAIZ GONCALVES, FERNANDA DE CASSIA. A Novel Silica-Nylon Mesh Reinforcement for Dental Prostheses. ADVANCES IN MATERIALS SCIENCE AND ENGINEERING, 2017. (11/07334-6)

FIRMINO, ALINE SILVA; TRIBST, JOAO PAULO MENDES; NAKANO, LEONARDO JIRO NOMURA; DAL PIVA, AMANDA MARIA DE OLIVEIRA; BORGES, ALEXANDRE LUIZ SOUTO; ARRUDA PAES-JUNIOR, TARCISIO JOSE. Silica-Nylon Reinforcement Effect on the Fracture Load and Stress Distribution of a Resin-Bonded Partial Dental Prosthesis. INTERNATIONAL JOURNAL OF PERIODONTICS & RESTORATIVE DENTISTRY, v. 41, n. 2, p. E45-E54, MAR-APR 2021. (11/07334-6)

PAPAIZ GONCALVES, FERNANDA DE CASSIA; AMARAL, MARINA; SOUTO BORGES, ALEXANDRE LUIZ; MARTINS GONCALVES, LUIZ FERNANDO; DE ARRUDA PAES-JUNIOR, TARCISIO JOSE. Fracture load of complete-arch implant-supported prostheses reinforced with nylon-silica mesh: An in vitro study. JOURNAL OF PROSTHETIC DENTISTRY, v. 119, n. 4, p. 606-610, APR 2018. (11/07334-6)

Filed patent(s) as a result of this research project