Clippy自锁系统矫治恒牙早期轻中度骨性Ⅲ类错  

Clippy self-ligating system treats mild and moderate skeletal class Ⅲ malocclusion of permanent dentition at early stage

作　　者：王雷[1] 肖瑞[2] 彭惠[3] 

机构地区：[1]大庆油田总医院集团龙南医院口腔科,黑龙江省大庆市163543 [2]佳木斯大学,黑龙江省佳木斯市154002 [3]大庆油田总医院口腔正畸科,黑龙江省大庆市163001

出　　处：《中国组织工程研究》2013年第7期1151-1155,共5页Chinese Journal of Tissue Engineering Research

摘　　要：背景:骨性Ⅲ类错牙合是临床上较为复杂的错牙合畸形,严重影响牙齿、颌骨及面部的发育。目前对自锁托槽的研究多是围绕骨性Ⅰ类错进行,自锁矫治系统专门针对骨性Ⅲ类错的研究国内外尚未见报道。目的:分析Clippy自锁系统对恒牙早期骨性Ⅲ类错患者矫治前后的X射线头颅定位侧位片及模型测量结果,从而确定该系统对骨性Ⅲ类错畸形的疗效。方法:选取在大庆油田总医院就诊的恒牙期骨性Ⅲ类错患者34例,男21例,女13例,年龄11-15岁,平均年龄12.8岁,上齿槽座点、鼻根点与下齿槽座点构成的角(ANB角)平均为-2.1°。应用Clippy自锁系统矫治,矫治期间未使用前牵引、扩弓矫治器等活动及辅助矫治措施,矫治疗程平均23.7个月。拍摄和测量矫治前后的X射线头颅定位侧位片,测量相关数据。结果与结论:①34例患者牙齿排列整齐,均建立正常的覆牙合覆盖关系,上下第一磨牙都达到中性关系或轻度近中关系。②上齿槽座点、鼻根点与下齿槽座点构成的角(ANB角)增加了1.56°,面角、AB平面角和腭平面角之和(APDI)减小了-2.22°,Ⅲ类骨型向Ⅰ类发展。③患者面型得到一定的改善。④上、下牙弓的横向宽度均有扩大,上牙弓的矢状向长度增长。结果可见Clippy自锁矫治系统对恒牙早期轻中度骨性Ⅲ类错畸形有较好的矫治作用,能够改善软组织侧貌,对上、下颌牙弓横向有扩大作用,对上颌牙弓矢状向有扩大作用。BACKGROUND： Skeletal class Ⅲ malocclusion is a complex malocclusion in clinic, which has a great harm to the development of teeth, maxilla and face. Currently, skeletal class I malocclusion is often explored in the self-ligating system, and there is yet no reports addressing self-ligating system for treatment of skeletal class Ⅲ malocclusion. OBJECTIVE： To analyze the results of X-ray lateral cephalometric radiographs and model measurement before and after Clippy self-ligating system treatment of mild and moderate class Ⅲ malocclusion so as to determine the therapeutic effect of Clippy self-ligating system. METHODS： Thirty-four patients with skeletal class Ⅲ malocclusion were selected from Daqing Oil Field General Hospital Group, aged 11-15 years （averagely 12.8 years）, including 21 males and 13 femeles. The angle of ANB （subspinale, Nasion, supramental） was -2.1° on average. All the patients were treated with Clippy self-ligating system, and maxillary expansion and rapid palatal expansion appliance and auxiliary rehabilitation measures were performed during the treatment. The average course of treatment was 23.7 months. X-ray lateral cephalometric radiographs were shot to measure the relevant data. RESULTS AND CONCLUSION： （1） After treatment, the teeth of the 34 patients arranged regularly, normal jet and bite was established, and the maxillary and madibuar first molar relationship reached a neutral or slightly mesial relation. （2） The ANB angle was increased by 1.56° and the anterposterior dysplasia indicator decreased by -2.22°. Malocclusion reverted from class Ⅲ to class I. （3） The face type of patients was improved. （4） The horizontal width of the maxillary and mandibular dental arch was expanded, and the sagittal length of the maxillary adental arch was increased. The Clippy self-ligating system is able to successfully collect mild to moderate skeletal class Ⅲ malocclusion of early permanent dentition with non-extraction treatment, improves soft tissue profile,

关 键 词：组织构建 口腔组织构建 骨性Ⅲ类错[牙合] 正畸治疗 头影测量分析 Clippy自锁托槽系统 恒牙早期 轻中度 模型分析 组织构建图片文章 

分 类 号：R318[医药卫生—生物医学工程]