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Vol. 74, No. 6
ISSN: 1488-2159
July / August 2008


Simple Preservation of a Maxillary Extraction Socket Using Beta-tricalcium Phosphate with Type I Collagen: Preliminary Clinical and Histomorphometric Observations


• Bozidar M.B. Brkovic, DDS, MSc, PhD •
• Hari S. Prasad, BS, MDT •
• George Konandreas, DDS •
• Radulovic Milan, DDS, MSc •
• Dragana Antunovic, DDS •
• George K.B. Sแndor, MD, DDS, PhD, FRCD(C), FRCSC, FACS •
• Michael D. Rohrer, DDS, MS •

A b s t r a c t

Alveolar atrophy following tooth extraction remains a challenge for future dental implant placement. Immediate implant placement and postextraction alveolar preservation are 2 methods that are used to prevent significant postextraction bone loss. In this article, we report the management of a maxillary tooth extraction socket using an alveolar preservation technique involving placement of a cone of beta-tricalcium phosphate (β -TCP) combined with type I collagen without the use of barrier membranes or flap surgery. Clinical examination revealed solid new bone formation 9 months after the procedure. At the time of implant placement, histomorphometric analysis of the biopsied bone showed that it contained 62.6% mineralized bone, 21.1% bone marrow and 16.3% residual β -TCP graft. The healed bone was able to support subsequent dental implant placement and loading.


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