수종의 이물성형재료가 가토의 하악골에 미치는 영향에 관한 실험적 연구

THE EXPERIMENTAL STUDY OF THE EFFECTS OF THE SEVERAL PROSTHETIC BIOMATERIALS IN RABBIT MANDIBLE

The successful clinical application of prosthetic biomaterials for reconstruction of defective jaws is accomplished by the favorable biocompatibility as well as the physical properties of materials. This study was undertaken to compare and to examine the biological effects of Ticonium, Stainless steel, and Acrylic resin which are the currently used prosthetic biomaterials in oral surgery field for reconstruction of the jaws. The materials as mentioned above were implanted in the mandible of the 10 healthy and white New Zealand albino rabbits. Specimens were obtained serially at 1 week interval during 5weeks, compared and examined histopathologically with microscope. The results of this study were as follows : 1. Inflammatory findings showed only in the 1st week in all experimental groups. For this, the implant materials in the rabbits had better tissue acceptance. 2. The formation of new osseous tissues by the proliferation of osteoblasts was seen at the first week in all experimental groups. (especially in the Stainless Steel group). 3. All the implant materials were covered with connective tissue and osseous tissue wall, then seperated and showed traces of fibrosis in the second week. 4. Osteoclasts were found through the entire period, especially at the first week, in all experimental groups.