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Type: Artigo de periódico
Title: Assessment Of The Fixation Of Mandibular Symphysis Fractures Using Conical Cannulated Screws: Mechanical And Photoelastic Tests
Author: Falci S.G.M.
Rodrigues D.C.
Marchiori E.C.
Brancher G.
Makyama A.
Fernandes Moreira R.W.
Abstract: Objective The aim of this study was to use mechanical and photoelastic tests to compare the performance of cannulated screws with other fixation methods in mandibular symphysis fractures. Study Design Ten polyurethane mandibles were allocated to each group and fixed as follows: group PRP, 2 perpendicular miniplates; group PLL, 1 miniplate and 1 plate, parallel; and group CS, 2 cannulated screws. Vertical linear loading tests were performed. The differences between mean values were analyzed with the Tukey test. The photoelastic test was carried out using a polariscope. Results The results revealed differences between the CS and PRP groups at 1, 3, 5, and 10 millimeters of displacement. The photoelastic test confirmed higher stress concentration in all groups close to the mandibular base, whereas the CS group showed it throughout the region assessed. Conclusions Conical cannulated screws performed well in mechanical and photoelastic tests. © 2014 Elsevier Inc.
Editor: Mosby Inc.
Rights: fechado
Identifier DOI: 10.1016/j.oooo.2014.03.015
Date Issue: 2014
Appears in Collections:Unicamp - Artigos e Outros Documentos

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