期刊
CLINICAL ORAL IMPLANTS RESEARCH
卷 25, 期 3, 页码 352-358出版社
WILEY
DOI: 10.1111/clr.12134
关键词
dental implants; platform switching; resonance frequency analysis
ObjectiveThe aim of this prospective clinical study was to evaluate the survival rates at 10years of expanded platform implants placed in the anterior zone of the maxilla and immediately restored with single crowns. Materials and methodsImplants incorporating the platform-switching concept were placed in fresh extraction sockets in the maxillary arch, with each patient receiving a provisional restoration immediately after implant placement. After 15days, final screwed restorations were inserted. Mesial and distal bone heights were evaluated using digital radiography on the day following implant placement and at 1, 5, 7, and 10years. Primary stability was measured with resonance frequency analysis (RFA) using the Osstell Mentor device. Eighty-six implants were placed in 32 men and 32 women ranging in age between 29 and 60 (mean, 39.645.16years). ResultsMarginal bone loss from implant collar to bone crest between baseline and 10years follow-up was 1.01mm +/- 0.22. Mesial site crestal bone loss ranged from 3.57mm +/- 1.1 at baseline to 3.77mm +/- 0.7 at 10-year. Distal site crestal bone loss ranged from 3.49mm +/- 0.8 at baseline to 3.73mm +/- 0.7 at 10year. ConclusionThe platform-switched implants remained stable over the course of 10years and had an overall survival rate of 97.1%.
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