Comportamento biomecânico do sistema prótese/implante em região anterior de maxila: análise pelo método de ciclagem mecânica

• Autor(a) principal: Tabuse, Henrique Eiji
• Data de Publicação: 2014
• Outros Autores: Corrêa, Cássia Bellotto, Vaz, Luís Geraldo [UNESP]
• Tipo de documento: Artigo
• Idioma: por
• Título da fonte: Repositório Institucional da UNESP
• Texto Completo: http://dx.doi.org/10.1590/S1807-25772014000100008; http://hdl.handle.net/11449/126170
• topic: Dental implantation; dental prosthesis; stress, mechanical; Implantação dentária; prótese dentária fixada por implante; estresse mecânico

INTRODUCTION : The adequate three-dimensional positioning of implants is essential to ensure predictability in dental implant treatment.PURPOSE : Was to comparatively evaluate the mechanical behavior of the system prosthesis/implant in the anterior maxilla, differing the prosthetic connection and the placement of implants.MATERIAL AND METHOD : By a maxilla prototyped model the situations were studied: Group IC- implants in the central incisor positions and cantilevers in the lateral incisor positions; Group IL - implants in the lateral incisor positions and pontics in the central incisor positions; Group ICIL one implant in a lateral and one in a central incisor position, with a pontic and a cantilever in the other positions. For each situations were used the prosthetic connections, external hexagon, internal hexagon and Morse-taper. In fatigue test was applied load 100N of frequency 15Hz in the incisors cingulum 45° to the long axis of the tooth to simulate a masticatory movement.RESULT : After the fatigue test all models of all groups with all three types of connections prosthetic reached 1 million cycles without rupture occurred screw, prosthetic component or metallic structure.CONCLUSION : According to methodology and conditions studied, can be concluded that the mechanical behavior of the implant-supported rehabilitation was similar to the different positions of the dental implants and the different prosthetic connections.