Simple preservation of a maxillary extraction socket using beta-tricalcium phosphate with type I collagen: preliminary clinical and histomorphometric observations

• Published in: Journal (Canadian Dental Association) Vol. 74; no. 6; pp. 523 - 528
• Main Authors: Brkovic, Bozidar M B, Prasad, Hari S, Konandreas, George, Milan, Radulovic, Antunovic, Dragana, Sándor, George K B, Rohrer, Michael D
• Format: Journal Article
• Language: English
• Published: Canada Canadian Dental Assn 01-07-2008
• Subjects: Adult; Alveolar Bone Loss - prevention & control; Alveoloplasty; Bicuspid - surgery; Biocompatible Materials - therapeutic use; Bone Marrow - pathology; Bone Substitutes - therapeutic use; Bones; Calcification, Physiologic - physiology; Calcium Phosphates - therapeutic use; Collagen Type I - therapeutic use; Dental Implantation, Endosseous; Dental surgery; Dentistry; Follow-Up Studies; Humans; Male; Maxilla - surgery; Osteogenesis - physiology; Teeth; Tooth Extraction; Tooth Socket - surgery; Transplants & implants
• ISSN: 0709-8936; 1488-2159

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 (beta -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 beta -TCP graft. The healed bone was able to support subsequent dental implant placement and loading.