Bone Loss Clinical Trial
Official title:
The Effects of Disconnection and Reconnection of Implant Abutments on Peri-implant Bone Levels: a 1-year Prospective Study
The aim of this prospective study is to assess the effects of definitive abutment connection at the time of implant placement on bone level changes in the areas of the posterior maxilla and mandible.
A total of 38 implants will be placed in 19 patients with at least 2 missing posterior teeth in the maxilla and the mandible for this study. Definitive prefabricated abutments will be connected at implant placement. The abutment (control group) on one of the two implants will be randomly selected to go through one complete cycle of complete disconnection and reconnection by hand at 16- (DR1), 19- (DR2), 22- (DR3), and 24- (DR4) weeks after implant surgery. The abutment (test group) on the other implant will be left undisturbed throughout the duration of the study. All implants will remain unrestored within the study period (12 months). Peri-implant bone level changes will be assessed using standardized periapical radiographs immediately after implant placement (T0), at 3-(T3), 6-(T6) and 12-(T12) month follow-up examinations and during each disconnection of the abutments. ;
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