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The International Journal of Oral & Maxillofacial Implants
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Int J Oral Maxillofac Implants 11 (1996), No. 4     1. July 1996
Int J Oral Maxillofac Implants 11 (1996), No. 4  (01.07.1996)

Page 512-521


Retrospective Analysis of One-Stage Maxillary Sinus Augmentation With Endosseous Implants
Blomqvist, John Eric / Alberius, Per / Isaksson, Sten
The aim of the present retrospective study was to evaluate the results of a one-stage reconstructive procedure using titanium implants placed in iliac corticocancellous bone blocks grafted to the floor of maxillary sinuses. Forty-nine patients received 314 Brånemark implants, of which 171 implants of various lengths were placed in the grafted bone and 143 implants in the adjacent maxillary alveolar process (which includes 11 implants placed in onlay grafts). Five patients also received onlay grafts to the anterior maxilla. Follow-up time was 3 to 49 months after abutment connection, which was performed 9 months after implant placement. Eighty-two percent of the implants were successfully integrated in the grafted area and 84.8% in the adjacent bone. Eleven patients (22.4%) lost one to four implants or a few implants in strategic positions, requiring secondary implant placement prior to the manufacturing of fixed prostheses, whereas 35 (71.4%) received primary fixed restorations. Only two individuals (4.1%) received permanent implant-supported overdentures. Assessments of esthetics, phonetics, and function were made by the surgical-prosthodontic team and compared with those of the patients. Opinions regarding the functional outcome of treatment appeared least correlated. The total implant survival rate compares favorably with other reports.

Keywords: bone grafting, endosseous implants, maxillary sinus augmentation, oral rehabilitation