关键词: 种植义齿, 上颌窦内提升, 上颌窦外提升, 临床疗效

Abstract:

Objective    To evaluate the clinical effect of implant restoration in posterior maxilla with internal and external maxillary sinus floor lifting. Methods    From June 2007 to June 2012，a total of 216 implants from 127 patients whose posterior maxillary tooth were missing and restored by implant denture were followed up for 6-60 months. There were 40 implants by maxillary sinus augmentation，61 implants by localized management of sinus floor and 115 implants by conventional operations. Clinical examination and X-ray were conducted to compare the implant cumulative success rate，the level of bone loss and the situation of osseointegration among the three groups. Results    There were no significant differences in the cumulative success rate and the bone loss level after the upper structure restoration in a year among the three groups. And one year later，the implant bone absorption was less than 0.2 mm per year on average. Conclusion    There is no obvious difference in clinical effects among the three groups and the success of implant is up to the choice of surgical indications and relevant surgical skills to master.

Key words: implant denture, localized management of sinus floor, maxillary sinus augmentation, clinical effect