성견에서 SLAⓇ와 Joy 1 implantⓇ의 골-임플란트 계면의 조직형태계측학적 연구

Abstract

ABSTRACT

Histomorphometric analysis of implant-bone interface between SLAⓇ and Joy 1 implantⓇ in dogs

Jung Min Gu, D.D.S. Advisor : Prof. Kim Byung-Ock, D.D.S., Ph.D. Department of Dentistry, Graduate School of Dentistry

OBJECTIVE : The objective of this study was to compare the osseointegration of SLAⓇ (ITI implant, Swiss) to these of Joy 1 implantⓇ(DAS, Korea).

MATERIALS ANDMETHODS : In 6 beagle dogs, 3rd and 4th mandibular premolar were extracted bilaterally. After 3 months, four transmucosal screw-shaped implants were placed in each mandibular edentulous premolar region. The implants have SLA(sandblasted, large-grit acid etched) implant surface. Control groups were SLAⓇ (10mm length, 4.1mm width) and experimental groups were Joy 1 implantⓇ (10mm length, 4mm width). The implants were allowed to heal for 4 or 8 weeks. At the end of the experiment, the dogs were sacrificed and each of implant sites was dissected and processed for histomorphometric analysis. The results of the bone-implant contact(BIC) and bone-ingrowth area(BI) were compared in SLAⓇ and Joy 1 implantⓇ. Statistical analyses were performed using Mann-Whitney U test and Wilcoxon test.

RESULTS : Histomorphometrical analysis showed direct osseous integration for both implants. Mean of BIC was 60.61±23.40% at 4 weeks and 60.77±16.62% at 8 weeks after implantation in SLAⓇ implant, whereas mean values of Joy 1 implantⓇ was 50.26±28.47% and 59.23±4.17% at corresponding time intervals. Mean of BI was 60.61±23.40% at 4 weeks and 60.77±16.62% at 8 weeks after implantation in SLAⓇ implant, whereas mean values of Joy 1 implantⓇ was 50.26±28.47% and 59.23±4.17% at corresponding time intervals. No significant difference between both types of implants could be detected after 4 and 8 weeks healing periods in BIC and BI.

CONCLUSION : The results indicate that there was no difference in osseointegration between SLAⓇ implant and Joy 1 implantⓇ regarding BIC and BI, Joy 1 implantⓇ showed similar histological response with SLAⓇ implant.