Different fabrication techniques of implant-supported prostheses: microhardness and fracture strength
Braz. j. oral sci
; 18: e191573, jan.-dez. 2019. ilus
Artigo
em Inglês
| LILACS, BBO - Odontologia
| ID: biblio-1095166
Biblioteca responsável:
BR218.1
ABSTRACT
Aim:
This study evaluated the mechanical behavior of implant-supported crowns obtained by different fabrication technique after thermomechanical cycling.Methods:
Thirty-two external hexagon dental implants were divided into four groups (n=10) CC conventional casting with torch; EI electromagnetic induction casting; PL plasma casting; and CAD-CAM milling through computer-aided design and computer-aided manufacturing. Vickers microhardness of the specimens were made before and after the thermomechanical cycling, and then subjected to fracture load. Fracture pattern was evaluated.Results:
No significant difference was observed comparing the microhardness before and after thermomechanical cycling. CAD-CAM group presented significant lower microhardness than the other groups. No significant statistical difference was showed on fracture load between the groups. The CAD-CAM and PL presented lower number of failure by plastic deformation.Conclusion:
The manufacturing techniques affected the mechanical behavior and the failure pattern of implant-supported crowns tested
Texto completo:
Disponível
Coleções:
Bases de dados internacionais
Base de dados:
BBO - Odontologia
/
LILACS
Assunto principal:
Prostodontia
/
Implantes Dentários
/
Desenho Assistido por Computador
Idioma:
Inglês
Revista:
Braz. j. oral sci
Ano de publicação:
2019
Tipo de documento:
Artigo
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