Results of oral implant–supported prostheses after mandibular vertical alveolar ridge distraction: a propos of 54 sites

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Abstract

Objective.

The aim of this study was to present retrospective long-term results of oral implant–supported prostheses after mandibular vertical alveolar ridge distraction.

Study Design.

Patients who had alveolar mandibular distraction before oral rehabilitation from 1999 to 2009 were retrospectively reviewed.

Results.

Fifty-four distractions were performed in 25 women and 12 men with a mean age of 51.7 years. Seventeen patients had bilateral distraction. Most of the distracted sites were posterior. Global major complications were major misdirection (3.7%), fracture (3.7%), and permanent alveolar nerve paresthesia (1 patient). All of the patients experienced osseous improvement. Mean height of the distraction was 11.7 mm. A total of 127 implants were inserted with survival and success rates, respectively, of 100% and 96.2% (mean follow-up of 62 months). All of the patients had satisfactory oral rehabilitation.

Conclusions.

Mandibular alveolar vertical distraction could be a reliable and effective procedure with precise indications. A less complicated implant distractor may simplify the procedure.

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