The Journal of Korean Academy of Prosthodontics (대한치과보철학회지)
- Volume 29 Issue 2
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- Pages.225-243
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- 1991
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- 0301-2875(pISSN)
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- 2005-3789(eISSN)
A STUDY ON SHEAR BOND STRENGTH OF INTERFACE BETWEEN BONE AND TITANIUM PLASMA SPRAYED IMZ IMPLANT IN RABBITS
가토에 이식된 Titanium plasma Sprayed IMZ 임프란트와 골의 계면 접촉 양상에 따른 결합력에 관한 연구
- Han, Chong-Hyun (Department of Prosthodontics, College of Dentistry, Yonsei University) ;
- Han, Dong-Hoo (Department of Prosthodontics, College of Dentistry, Yonsei University)
- Published : 1991.02.01
Abstract
In recent years immediate implantation has been tried by a few clinicians. This study placed IMZ implants in the rabbit femur with and without bony defects around the implant for simulating fresh extraction site. And one group with bony defects used porous hydroxyapatite ganules(HA) to fill if and the other group left the bony defects around the implant. The purpose of this study was to compare the shear bond strength and the bony contact and formation around the implant. Fifteen rabbits were divided into three groups and placed 10 IMZ implants to each group. Implant sites were surgically prepared with IMZ drills kit and implants were placed(Control), artificial bony defect was created with Apaceram drills kit around the implant sites and implants were placed(Experimental I), bony defect was filled with porous hydroxyapatite granules(Experimental II). Thereafter, rabbits were sacrificed at 8th week and specimens were prepared and pushout tested for shear bond strength of bone-implant interface immediately. Undecalcified and decalcified specimens were prepared with Vilanueva and hematoxylin-eosin stain for light microscopic finding. The results of this study were as follows. 1. In the control group, mean shear strength of bone-implant interface was
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