Carga de carregamento de molares tratados endodonticamente restaurados com cobertura de cúspide em resina composta e pino de fibra de vidro transfixado horizontalmente

• Autor(a) principal: Andrade, Jonas Pereira
• Data de Publicação: 2021
• Tipo de documento: Tese
• Idioma: por
• Título da fonte: Biblioteca Digital de Teses e Dissertações da PUC_RS
• Texto Completo: https://tede2.pucrs.br/tede2/handle/tede/10418
• topic: Tratamento Endodôntico; Resina Composta; Pino de Fibra de Vidro; Endodontic Treatment; Composite Resin; Fiberglass Post; CIENCIAS DA SAUDE::ODONTOLOGIA

Objective: To evaluate the fracture strength of endodontically treated molars with MOD preparations restored with composite resin with or without cusps cover and fiberglass post transfixed horizontally. Materials and Methods: Seventy sound extracted third molars were randomly divided into 7 groups (n = 10). Group H (sound) and other groups received the following procedures after endodontic treatment: C (MOD), P (MOD + post), R (MOD + resin), PR (MOD + resin + post), FR (MOD + resin cusp cover), PFR (MOD + resin cusp cover + post). The samples were subjected to mechanical cycling (500 thousand cycles with a load of 200 N). Afterwards, they received the maximum load test with a speed of 1 mm / min. The failures were classified as repairable and irreparable. Results: The data were submitted to the Shapiro-wilk test, followed by one-Way Anova and Tukey at the 95% confidence level. Group H had the highest average in Newtons (4359) a, followed by the other groups: PFR (3226) e, FR (2859) e, PR (2116) d, R (1480) c, P (1023) bc, C (835) b. Conclusions: The PFR and FR groups with resin cusp cover obtained the highest fracture strength results. Clinical Relevance: The use of the horizontally transfixed fiberglass post has a beneficial effect on extensively compromised endodontically treated teeth.