Validation of an experimental polyurethane model for biomechanical studies on implant supported prosthesis - tension tests

Autor(es)

Miyashiro, Mariane ; Suedam, Valdey ^[1] ; Moretti Neto, Rafael Tobias ^[1] ; Ferreira, Paulo Martins ^[1] ; Rubo, Jose Henrique ^[1]

Afiliação do(s) autor(es)

^[1] USP, Bauru Sch Dent, Dept Prosthodont, BR-17012901 Bauru, SP - Brazil

• Tipo de documento: Artigo Científico
• Fonte: Journal of Applied Oral Science; v. 19, n. 3, p. 244-248, MAY-JUN 2011.
• Citações Web of Science: 4

Resumo

OBJECTIVES: The complexity and heterogeneity of human bone, as well as ethical issues, frequently hinder the development of clinical trials. The purpose of this in vitro study was to determine the modulus of elasticity of a polyurethane isotropic experimental model via tension tests, comparing the results to those reported in the literature for mandibular bone, in order to validate the use of such a model in lieu of mandibular bone in biomechanical studies. MATERIAL AND METHODS: Forty-five polyurethane test specimens were divided into 3 groups of 15 specimens each, according to the ratio (A/B) of polyurethane reagents (PU-1: 1/0.5, PU-2: 1/1, PU-3: 1/1.5). RESULTS: Tension tests were performed in each experimental group and the modulus of elasticity values found were 192.98 MPa (SD=57.20) for PU-1, 347.90 MPa (SD=109.54) for PU-2 and 304.64 MPa (SD=25.48) for PU-3. CONCLUSION: The concentration of choice for building the experimental model was 1/1. (AU)

• Processo FAPESP: 06/57414-8 - Validacao de um modelo experimental de poliuretano para estudo biomecanico em protese implanto-suportada.
• Beneficiário: Mariane Miyashiro
• Modalidade de apoio: Bolsas no Brasil - Iniciação Científica