2001 Volume 64 Issue 4 Pages 369-374
We used computed tomography(GE Medical Systems)and Denta Scan to investigate bone healing after insertion of collagen sponge matrix(CSM) in tooth extraction sockets. One extraction site each in eight patients was evaluated. Each site had natural teeth mesial and distal to the site. CSM was placed to fill the extraction socket, and sutures were placed. Denta Scan was used to evaluate the healing at one day and three months. No complications, such as pain, bleeding, secondary infection or delay of epithelization, were observed. New bone formation or bone remodeling was observed clinically and radiographically where the CSM had been inserted. After three months the degree of comparative bone remodeling, as measured by the product of buccolingual length and socket depth, was between 60.1% and 94.3% respectively, with an average of 80.0%. We concluded that placement of CSM in the extraction socket between natural teeth was very effective not only for hemostasis, protection of the wound and promotion of healing, but also for new bone formation and prevention of alveolar ridge loss.
