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Nonsubmerged 임프란트 식립후 조직형태학적 반응과 시간경과에 따른 Periotest? 측정값에 대한 연구
김태인,이재일,양복렬,송태식 한국생체재료학회 2003 생체재료학회지 Vol.7 No.4
The purposes of this study was to evaluate Periotest values regarding to functional changes and compare Periotest values(PTV) to histologic findings with a nonsubmerged "Protect-447" dental implant. In the first part of the study, PTV measurements of 10 nonsubmerged implant were done immediately after implant placement and repeated every 2 weeks up to 3 months in beagle dogs. Mean PTV for nonsubmerged implants increased on 2 weeks after surgery and then decreased gradually from 4 weeks after implant placement. After 3 month of experimentation, in the 2nd part, PTV of the each implant were measured and the implants with surrounding bone were removed for the histomorphometric analysis. The results were as follows. 1. Histomorphometric analysis after 3 months showed that osseointegration was obtained successfully without fibrous connective tissue at the interface and bone-implant contact ratio was 64.43%±10.53 in beagle dogs. 2. PTV measurements during the 3 months experiments showed that Protect-447 dental implant could be osseointegrated with an excellent primary stability.