摘要
目的:唇腭裂伴牙槽突裂的上颌骨牙列矫正,常存在牙槽突裂隙区牙槽骨塌陷、牙龈高位、植入骨吸收等不理想状态,本研究回顾性分析8例患者,探讨上颌骨牙列矫治的治疗程序。方法:8例单侧牙槽突裂患者,在牙槽突裂植骨术同期行尖牙骨皮质切开,术后以正畸方法快速将尖牙向牙合方、唇向移动,牙根移入植骨区。术前、术后1周、尖牙正轴完成后拍摄曲面体层片、尖牙根尖片、上颌咬合片和尖牙区照片,比较治疗前后尖牙区植骨量、尖牙牙根吸收程度和松动度变化;测量裂隙侧尖牙和邻牙之间的龈缘高度差和牙根之间的夹角,采用SPSS 17.0软件包对治疗前后各测量项目进行配对t检验,比较治疗前后结果有无统计学差异,评价植骨效果以及尖牙移动的有效性和安全性。结果:治疗后牙槽突裂植入骨高度均位于相邻牙牙根长度的1/2以上;裂隙侧尖牙牙根与邻牙牙根基本平行,牙根吸收均<2mm,龈缘高度较治疗前改建良好。结论:该治疗程序具有较强优势,在一次手术的基础上,使尖牙安全、有效进入裂隙区,保证了植入骨的丰满度和高度,重建了正常龈缘。
PURPOSE： To evaluate the treatment result with secondary bone graft and corticotomy of canine at the same time in patients with cleft lip and palate.METHODS： A study was performed in 8 patients with unilateral cleft alveolus who received secondary bone grafting and canine corticotomy simultaneously,the canines were rapidly moved occulsally and labially to the graft region after surgery.The treatment result was evaluated on the photographs,panoramic radiographs,periapical films and bite films taken before surgery,1 week after surgery and after the canines were uprighted.Grafted bone volume,alignment of root,canine root resorption and gingival margin were compared before and after treatment by pared t test using SPSS17.0 software package to evaluate the validity and safety of canine movement in grafted bone.RESULTS： Resorption of the bone graft was less than 50%.Roots of the canines in the cleft side and the adjacent teeth were almost paralleled.The difference of gingival margin height between the canines in the cleft and non-cleft side was not significant.Mobility of the canines were mild.CONCLUSIONS： Corticotomy can help the canines in the cleft side move to the dental arch effectively,safely and rapidly with good remolding of its periodontal and endodontic status.
出处
《中国口腔颌面外科杂志》
CAS
2011年第5期381-386,共6页
China Journal of Oral and Maxillofacial Surgery
基金
国家自然科学基金(10972142)
上海市科学技术委员会资助项目(08411961600)
上海高校创新团队发展计划资助项目~~
关键词
牙槽突裂
植骨
正畸治疗
Alveolar cleft
Bone graft
Orthodontic treatment
