OBJECTIVE: This study evaluated the stress distribution by loads, under a internal connection implant system with two sort of abutment screws and prosthetic crown models at ten observation points. MATERIALS AND METHOD: The analysis were made in two models with internal butt joint, and with gold and titanium screw, respectively. The load was 382N with 90 masculine to the occlusal surface and 15 masculine to the implant axis at 4 and 6 mm from the implant center. RESULTS: In both models, a large amount of stress was located around the implant neck and little stress was concentrated along the abutment screw. CONCLUSION: The simulations made suggest that the internal connection protects the abutment screw from the accumulated stresses; however, it exposes the implant walls to these stresses.
OBJECTIVE: This study evaluated the stress distribution by loads, under a internal connection implant system with two sort of abutment screws and prosthetic crown models at ten observation points. MATERIALS AND METHOD: The analysis were made in two models with internal butt joint, and with gold and titanium screw, respectively. The load was 382N with 90 masculine to the occlusal surface and 15 masculine to the implant axis at 4 and 6 mm from the implant center. RESULTS: In both models, a large amount of stress was located around the implant neck and little stress was concentrated along the abutment screw. CONCLUSION: The simulations made suggest that the internal connection protects the abutment screw from the accumulated stresses; however, it exposes the implant walls to these stresses.