Finite element analysis of thermal stress distribution in different restorative materials used in class V cavities.
Niger J Clin Pract
; 19(1): 30-4, 2016.
Article
en En
| MEDLINE
| ID: mdl-26755215
ABSTRACT
PURPOSE:
Cervical lesions are restored with class V preparation. The aim of this study was to use a three-dimensional finite element method to carry out a thermal analysis of the temperature and stress distributions of three different restorative materials used for class V cavities of maxillary molar teeth. MATERIALS ANDMETHODS:
A maxillary left first molar tooth was modeled and a class V cavity was prepared on the cervical 1/3 of the buccal surface. This cavity was restored with three different materials (Group I Resin composite, Group II Glass ionomer cement, and Group III Amalgam). Loads of 400 N were applied at an angle of 90° to the longitudinal axis of the tooth on the restorative material at 5 and 55°C temperatures. Von Mises and thermal stress distributions were evaluated.RESULTS:
In all groups, the von Mises stress values increased with temperature. The highest von Mises stress distribution was observed at 55°C in Group II (144.53 MPa). The lowest von Mises stress distribution was observed at 5°C in Group III (70.81 MPa).CONCLUSION:
Amalgam is the most suitable restorative material for class V restorations because of minimal stress distribution.
Texto completo:
1
Colección:
01-internacional
Base de datos:
MEDLINE
Asunto principal:
Análisis de Elementos Finitos
/
Caries Dental
/
Materiales Dentales
/
Restauración Dental Permanente
/
Análisis del Estrés Dental
/
Diente Molar
Límite:
Humans
Idioma:
En
Revista:
Niger J Clin Pract
Asunto de la revista:
MEDICINA
Año:
2016
Tipo del documento:
Article