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