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Type: Artigo de periódico
Title: Influence of ferrule preparation with or without glass fiber post on fracture resistance of endodontically treated teeth
Author: de Lima, AF
Spazzin, AO
Galafassi, D
Correr-Sobrinho, L
Carlini, B
Abstract: Objective: This study evaluated the effect of ferrule preparation (Fp) on the fracture resistance of endodontically treated teeth, restored with composite resin cores with or without glass fiber posts. Material and Methods: Forty-four bovine teeth were sectioned 19 or 17 mm (2 mm ferrule) from the apex, endodontically treated and assigned to four groups (n = 11): Group 1: Fp and post; Group 2: Fp and without post; Group 3: without Fp and with post; Group 4: without Fp and without post. All specimens were restored with composite resin core and metal crown. Specimens were subjected to fracture resistance testing in a universal testing machine at a crosshead speed of 0.5 mm/min. The data were analyzed by two-way ANOVA and Tukey's tests (alpha = 0.05). Results: The mean fracture resistance values were as follows: Group 1: 573.3 N; Group 2: 552.5 N; Group 3: 275.3 N; Group 4: 258.6 N. Significantly higher fracture resistance was found for the groups with Fp (p < 0.001). Conclusion: There was no statistically significant interaction between the 'Fp' and 'post' factors (p = 0.954). The ferrule preparation increased the fracture resistance of endodontically treated teeth. However, the use of glass fiber post showed no significant influence on the fracture resistance.
Subject: Ferrule preparation
Glass fiber post
Fracture resistance
Country: Brasil
Editor: Univ Sao Paulo Fac Odontologia Bauru
Citation: Journal Of Applied Oral Science. Univ Sao Paulo Fac Odontologia Bauru, v. 18, n. 4, n. 360, n. 363, 2010.
Rights: fechado
Date Issue: 2010
Appears in Collections:Unicamp - Artigos e Outros Documentos

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