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   Offical Journal of The Academy of Osseointegration

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Volume 23 , Issue 1
January/February 2003

Pages 2935

Clinical and Histologic Evaluation of Bone-Replacement Grafts in the Treatment of Localized Alveolar Ridge Defects. Part 1: Mineralized Freeze Dried Bone Allograft

Frank Feuille, V, DDS, MS/Charles I. Knapp, DDS, MS,/Michael A. Brunsvold, DDS, MS/James T. Mellonig, DDS, MS

PMID: 12617366
DOI: 10.11607/prd.00.0504

The purpose of this study was to evaluate the use of mineralized freeze-dried bone allograft (FDBA) in conjunction with a titanium-reinforced expanded polytetrafluoroethylene (TR e-PTFE) barrier in the treatment of localized alveolar ridge deficiencies prior to endosseous dental implant placement. Twelve patients (aged 23 to 65 years) requiring tooth replacement with ridge augmentation were recruited to participate in this study. During ridge augmentation surgery, measurements were made prior to grafting with FDBA plus a TR e-PTFE barrier. Six months later, ridge measurements were repeated, and suitability for implant placement was assessed. At each implant site, a biopsy was taken from the grafted site. The implants were placed and allowed to osseointegrate for 13 weeks prior to phasetwo surgery. Clinical data analyzed were horizontal ridge width changes and vertical ridge height changes. Histologic evaluation revealed the formation of new bone and residual particles in each graft site at the time of implant placement. Ten patients completed the study. The mean alveolar ridge width increased by 3.2 1.0 mm (P < .0005). Histomorphometric analysis revealed a range of new bone from 42.9% to 70.5%, with a mean of 47.6%. Graft particles remaining ranged from 29.5% to 57.1%, with a mean of 52.4%. The clinical and histologic findings of this study demonstrate that sites grafted with FDBA in conjunction with an e-PTFE barrier can provide a predictable way to augment deficient alveolar ridges prior to implant placement. (Int J Periodontics Restorative Dent 2003;23:2935.)

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