Different fabrication techniques of implant-supported prostheses
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 - electromagne...
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| Main Authors: | , , , , , |
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| Format: | Book |
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Universidade Estadual de Campinas,
2019-11-01T00:00:00Z.
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| Online Access: | Connect to this object online. |
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| Summary: | 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. |
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| Item Description: | 10.20396/bjos.v18i0.8657254 1677-3225 |