성견에서 발치 직후 Titanium plasma sprayed IMZ 임프란트 이식시 조직유도 재생술에 따른 골 재생력에 관한 연구
A STUDY OF GUIDED TISSUE REGENERATION FOR IMMEDIATE IMPLANTATION WITH/WITHOUT HA AUGMENTATION ： A STUDY IN DOGS
황희성, 정문규,
소속 상세정보
황희성 ( Hwang Hie-Seong ) - Yonsei University College of Dentistry Department of Prosthodontics
정문규 ( Chung Moon-Kyu ) - Yonsei University College of Dentistry Department of Prosthodontics
KMID : 0362819920120010167
Abstract
The purpose of this investigation was to evaluate the effect of the porous hydroxyapatite particles (Interpore 200®) and guided tissue regeneration membrane (Gore-Tex™ augmentation material) on amount and shape of generating new bone adjacent to implant. Implants were placed immediately after extraction in the bilateral 3rd, 4th premolars of the mandible of the adult dogs. In all experimental groups, artificial bony defects were formed at the buccal cortex area, 3.3mm in width and 3.0mm in depth. In the control group : sutured without HA particles & membranes after placing implants, the experimental group 1 : membrane was place over the artificial bony defect, the experimental group 2 : bony defect was filled with HA particles and covered with membrane. The examination of bone-implant interfaces using light microscope and fluorescent microscope concluded as follows 1. In all three experimental groups, osseointegration was observed without epitherial migration. 2. In the healing degree of bony defect area, the experimental group 1, 2 showed more prominent healing than control group, and the experimental group 1 showed the most excellent bone formation. 3. In fluorescent microscopic finding, bone remodeling was observed in regenerated bone tissue at defect area of experimental group 1, but in experimental group 2, irregular, discontinuous linear fluorescence was observed at the lower portion of defect area and sign of bone remodeling was weak.
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