국내 제작 Avana 임프란트와 Bra°nemark 임프란트 주위 골조직에 대한 광학 및 형광 현미경학적 연구

Abstract

The purpose of this study was to compare surface roughness and bone formation around two types of threaded commercially pure titanium implants manufactured by two different companies. The test implants were manufactured by Sumin synthesis dental materials Co. (Avana, Busan, Korea), while the controls were manufactured by Nobel Biocare (MK II, Goteborg, Sweden). To compare bone formation adjacent to newly product implant with Brånemark MK II implant, surface roughness was measured by Accurate 1500M and histomorphometric analysis was done. The results were as follows: 1. Measurement of surface roughness showed that Avana implant had a slightly more irregular surface compared with Brånemark implant. 2. In the light microscopic studies, no infiltration of inflammatory cells nor the giant cells were observed on both groups. 3. In the light and fluorescent microscopic studies, the amount of osseointegration and the extent and the timing of bone formation were similar. 4. There were no statistically difference between two groups in the average bone to implant con- tacts. Brånemark implant; 67%(SD 23%), Avana implant; 70%(SD 16%). Comparing with Brånemark implant, Avana implant made of CP grade II titanium showed sim- ilar good bone healing, formation and osseointegration.