성견에서 임플란트 주위 골결손부에 다양하게 탈회처리한 자가치아 골이식재 이식의 골 치유

Abstract

Purpose: We treated auto tooth bone material with controlled acid treatment condition then evaluated bone generation capacity of auto-transplantation material by the clinical and histological analysis. Materials and Methods: The 3.7 mm diameter and 10 mm length implant that has the hydroxyapatite(HA) coating surface and tapered type fixture were used. The bony defect which has 2mm interval and 4mm depth was formed using 8mm trephine bur in femur. Then we transplanted auto-transplantation material in bony defect after place implant. Experimental groups are classified according to acid treatment method of auto-transplantation material; 2% sulfuric acid, hydrochloric acid, nitric acid and ethylenediaminetetraacetic acid(EDTA). Auto-transplantation materials are classified according to acid treatment method; using 2% nitric acid, hydrochloric acid, sulfuric acid and EDTA respectively. Result: We measured New bone formation area and Bone to implant contact of auto-transplantation materials that were sacrificed after 8 weeks. New bone formation area of experimental group 2,3,4 were higher than control group and experimental group 1 in 8 weeks. and BIC of experimental group 4 was higher than control group and experimental group 1. Also they show statistical significance.(P<0.05) Conclusion: Auto tooth bone treated with EDTA shows more effective bone formation on dog’s femur than other solutions