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- Title
超声骨刀与涡轮法拔除下颌阻生第三磨牙的效果比较.
- Authors
宋勇; 李想; 蔡嫚; 王耀辉
- Abstract
PURPOSE: This research aimed at evaluating the efficacy of different types of impacted mandibular third molars removed by piezosurgery and highspeed rotary handpiece. METHODS: One hundred and twenty low-positioned impacted mandibular third molars were assigned to 3 groups (vertically impacted group, mesially impacted group and horizontally impacted group) and each group included 40 teeth. Twenty teeth in each group were treated with piezosurgery and another 20 teeth with highspeed rotary handpiece. The operation time, degree of postoperative pain and swelling, mouth opening and serious complications (such as permanent nerve injury) were recorded. SPSS 17.0 software package were used for statistical analysis. RESULTS: All cases treated with piezosurgery showed minor postoperative pain at 1 d and 3 d than those with highspeed rotary handpiece, but no significant difference at 7 d. In vertically impacted group, no significance was shown in the operation time, swelling, mouth opening between two methods. In mesially impacted group, piezosurgery had the advantages of reducing operation time and mouth opening limitation than highspeed rotary handpiece, but with the same degree of swelling. In horizontally impacted group, piezosurgery was superior to highspeed rotary handpiece in all postoperative clinical indexes. No serious complication was observed in each group. CONCLUSIONS: Comparing to highspeed rotary handpiece, piezosurgery achieves minimally invasive surgery via selectively cutting bone tissue, accurate osteotomy, less postoperative trauma. It is recommended to use piezosurgery to remove low positioned mesially or horizontally impacted third molars to reduce postoperative trauma and improve surgical outcomes.
- Publication
China Journal of Oral & Maxillofacial Surgery, 2019, Vol 17, Issue 6, p540
- ISSN
1672-3244
- Publication type
Article
- DOI
10.19438/j.cjoms.2019.06.012