The Journal of Korean Academy of Prosthodontics (대한치과보철학회지)
- Volume 33 Issue 2
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- Pages.317-334
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- 1995
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- 0301-2875(pISSN)
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- 2005-3789(eISSN)
EFFECTS OF HYDROXYAPATITE AND TITANIUM-COATED DENTAL IMPLANTS ON BONE FORMATION AND MATURATION IN DOG
성견에서 수산화인산염 피개 IMZ임플란트와 티타늄 피개 IMZ임플란트주위의 골형성 및 골성숙 정도에 대한 비교연구
- Yoon, Hong-Cheol (Dept. of Prosthodontics, College of Dentistry, Yonsei University) ;
- Han, Dong-Hoo (Dept. of Prosthodontics, College of Dentistry, Yonsei University)
- Published : 1995.04.01
Abstract
The purpose of this study was to compare the bone formation, maturation around HA-and titaniumcoated dental implants in dog. 5 hydroxyapatite coated IMZ implants and 5 titanium coated IMZ implants were placed into the previously extracted site in the mandible of 5 adults dogs. All dogs were injected intravenously Tetracycline, Alizalin red S, and Calcein for bone fluorescent labelling, After the experimental period of 16weeks, the dogs were sacrificed and tissue samples around the implants were obtained. Microscopic observations(ligth, polariged and fluorescence microscope), morphometric analysis, line profile with EPMA, and quantitative analysis for Ca,P, and Ti were performed. The results were as follows ; 1. Bone maturations around the implants were relatively lower than those of natural teeth. No significant differences in bone maturation and remodeling patterns were observed between the two implants groups. 2. Calcification of bone surrounding the implants was initiated in 8-11 weeks for HA-coated implants, while it took 11 weeks or more for Ti-coated implants. 3. Bone-to-implants contact ratio of 82.63% was recorded for HA-coated group and 72.25% for titanium coated group, with no significant difference between the two groups. 4. Bone around the implants exhibited reduced quantity of Ca and P in the
Keywords
- hydroxyapatite coated implant;
- titanium coated implant;
- bone formation;
- bone maturation;
- morphometric analysis;
- EPMA;
- fluorescent labelling