성견에서 임플란트 즉시 부하시 다양한 표면처리에 따른 조직형태 계측학적인 평가

Abstract

Purpose : This study compared splint and non-splint methods of immediate-loading implants and examined the implant success rate for different surfaces: smooth, oxidized, and resorbable blast media (RBM). Material and Method : The first through fourth mandibular premolars were extracted from eight young adult dogs. Twelve weeks after extraction, implantation was performed at the extraction sites. The implants had one of the following surface treatments: smooth, oxidized, or RBM. Sixteen weeks after implantation, the dogs were sacrificed; the hemi-mandibles were obtained and processed histologically to obtain non-decalcified sections. Longitudinal sections were made for each implant and analyzed using light microscopy. Result : The implant success rate in all the groups was 83.3% in this study. Radiographically, three oxidized surface implants showed vertical bone resorption to the middle third of the implant. Histomorphometrically, the experimental group had a better bone-to-metal contact rate than the control group. Conclusion : The immediate-loading implant showed results similar to those of the two-stage implant method. For the immediate loading of implants, the results were better for implants with a smooth surface.