Piezoelectric surgery와 재래식 bur를 이용한 가토 하악골 절제 후 골재생력 및 속도 비교

Abstract

The purpose of this study was to investigate the efficacy after osteotomy using piezoelectric surgery (Piezosurgery) and conventional bur method on new bone forming in a rabbit mandible by comparison. The osteotomy time was measured using a stopwatch. This study focused on the early healing process and rate at the osteotomy sites. After 1, 2, and 4 weeks, each specimen was prepared for light microscopic observation. The result of this study were follows: 1. Histomorphometric study There was no statistical significance on new bone forming activity between piezoelectric surgery (Piezosurgery) and conventional bur method for 1, 2, and 4 weeks. 2. Time of osteotomy The osteotomy time of conventional bur method was shorter than that of piezoelectric surgery. The osteotomy time of conventional bur method and piezoelectric surgery was 8.9±2.5 and 32.3±14.0 sec, respectively. It is believed that there is no considerable difference on the early bone healing effect between piezoelectric surgery and conventional bur method, but the osteotomy time of conventional bur method was shorter than that of piezoelectric surgery. Since the instrument of piezoelectric surgery (Piezosurgery) is sharp and more controllable, piezoelectric surgery will be more useful for delicate surgeries such as maxillary sinus lift, segmental osteotomy, with the least complication.