cad a22 4500 390147974 20200501042436.0 cr unu---uuuuu 161201e201606 xx s 000 0 eng 10.5167/uzh-128189 doi 10.1097/ID.0000000000000419 doi (ZORA)oai:www.zora.uzh.ch:128189 610 ddc 27213528 pmid Effect of Different Abutments and Connections in Deformation Crestal Bone [Elektronische Daten] [Alfredo Mikail Melo Mesquita, Juliano H M Silva, Cintia Helena Cury Saraceni, Alberto N Kojima, Mutlu Özcan] openAccess eu-repo STATEMENT OF PROBLEM The use of Morse taper connections is increasing, but little is known about the biomechanical use of abutments and their use in fixed prostheses. PURPOSE This study evaluated the transmission of load on the bone implant-supported dentures, varying the type of prosthetic connection and abutment. MATERIAL AND METHODS Using 4 polyurethane models, 3 implants were inserted into each block, establishing the following groups: (a) external hexagon and Micro-Unit abutments; (b) external hexagon and UCLA abutment; (c) Morse taper and Micro-Unit abutments; and (d) Morse taper and UCLA abutments. The prosthetic structures were cast, and in a universal testing machine, load was applied midway between the implants, with cantilever intervals of 5, 10, 15, 20, and 25 mm. Data were analyzed by Mann-Whitney, Friedman, and Kruskal-Wallis tests (P < 0.05). RESULTS Regarding the prosthetic connection, there was no difference in the use of hexagonal or Morse taper, but the use of Micro-Unit abutment showed lower deformation values than UCLA for the 2 connections. CONCLUSIONS The use of intermediate abutments affects the distribution of masticatory loads: the greater the length of the cantilever, the greater the surface deformation of the bone around the distal implant. Clinic of Reconstructive Dentistry zora Mesquita Alfredo Mikail Melo joint author Silva Juliano H M. joint author Saraceni Cintia Helena Cury joint author Kojima Alberto N. joint author Özcan Mutlu joint author Implant Dentistry 25(3):328-334 https://www.zora.uzh.ch/id/eprint/128189/1/Superficial%20deformation%20in%20bone%20for%20prosthesis_acc.pdf text/html WWW-Backlink auf das Repository 1 Journal Article PeerReviewed zora ZORA 856 40 https://www.zora.uzh.ch/id/eprint/128189/1/Superficial%20deformation%20in%20bone%20for%20prosthesis_acc.pdf text/html WWW-Backlink auf das Repository ZORA 700 1- Mesquita Alfredo Mikail Melo joint author ZORA 700 1- Silva Juliano H M. joint author ZORA 700 1- Saraceni Cintia Helena Cury joint author ZORA 700 1- Kojima Alberto N. joint author ZORA 700 1- Özcan Mutlu joint author ZORA 773 0- Implant Dentistry 25(3):328-334 BK010053 XK010053 XK010000 ZORA ZORA ZORA Journal Article openAccess