الفهرس 
Review of literatureOnly 14 pages are availabe for public view
 |  | from | 92 |  |  |
| | | from | 92 | | |
Abstract
After tooth extraction, the residual alveolar ridge generally provides limited bone volume because of ongoing, progressive bone resorption. Healing events within postextraction sockets reduce the dimensions of the socket over time. A reduction of about 50% in both horizontal and vertical directions has been observed over 12 months, with two-thirds of the reduction occurring in the first 3 months. The rate and pattern of bone resorption may be altered if pathologic and traumatic processes have damaged 1 or more of the bony walls of the socket. In these circumstances, fibrous tissue will likely occupy part of the socket, preventing normal healing and osseous regeneration. These morphologic changes may affect the successful placement and osseointegration of dental implants.
However, it is possible to minimize such problem by carrying out ridge presevation procedure in extraction socket using grafting material with or without barrier membranes.
The surgical procedure was minimally invasive tooth extraction to preserve socket walls.
Beta-tricalcium phosphate (β-TCP), a synthetic alloplastic material, has been used for bone regeneration in a variety of surgical procedures with satisfactory clinical and histologic results in both animal models and human trials. This was clinically confirmed from the present study.
Bone dimensions evaluation was done using Computerized tomographyCT immediately after the surgical procedure and 4 month later in the both groups.