Comparison of Dental Implant Performance Following Vertical Alveolar Bone Augmentation With Alveolar Distraction Osteogenesis or Autogenous Onlay Bone Grafts: A Retrospective Cohort Study.

Comparison of Dental Implant Performance Following Vertical Alveolar Bone Augmentation With Alveolar Distraction Osteogenesis or Autogenous Onlay Bone Grafts: A Retrospective Cohort Study.

J Oral Maxillofac Surg. 2017 Jul 01;:

Authors: Zhao K, Wang F, Huang W, Wu Y

Abstract
PURPOSE: The aim of this retrospective study was to compare the performance of implants placed after alveolar distraction osteogenesis (ADO) or autogenous onlay bone grafting (AOBG) based on implant survival, peri-implant bone resorption, and clinical parameters.
MATERIALS AND METHODS: From February 2008 to July 2012, 17 patients (6 women and 11 men) with implant placement after ADO (group 1, n = 8) or AOBG (group 2, n = 9) were included in this retrospective study. In all, 37 implants were placed in group 1 and 22 implants were placed in group 2. Implant survival rate, peri-implant bone resorption, probe depth (PD), modified plaque index (mPI), and modified sulcus bleeding index (mSBI) were analyzed to evaluate implant prognosis.
RESULTS: Successful reconstruction of vertical alveolar defects and uneventful implant placement were achieved in all patients in the 2 groups. After a mean follow-up of 47.9 ± 13.3 months, implant survival was 97.3% (36 of 37) in group 1 and 95.5% (21 of 22) in group 2. No statistically relevant differences were observed. Peri-implant bone resorption was 1.29 ± 0.59 mm in group 1, which was slightly higher than 1.24 ± 0.87 mm in group 2 at last follow-up. The difference was not statistically relevant. Favorable peri-implant conditions were indicated by PD, mPI, and mSBI in the 2 groups.
CONCLUSIONS: ADO and AOBG can be used for correction of vertical alveolar defects with a reliable implant prognosis. Comparably high implant survival rates and favorable peri-implant conditions were attained.

PMID: 28738191 [PubMed - as supplied by publisher]

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