偏颌畸形患者的牙弓特征
Dental Arch Characteristics of the Facial Asymmetry
作者：贾海潮,孙新华
Author：IAHai-chao1,SUNXin-hua2
收稿日期：2005-10-25 年卷（期）页码：2005,23(05):412-
期刊名称：华西口腔医学杂志
Journal Name：West China Journal of Stomatology
关键字：面部不对称,牙弓,对称性,牙齿倾斜度,模型测量,
Key words：facial asymmetry,dental arch,symmetry,dental inclination,dental cast measurement,
基金项目：
中文摘要
目的 分析偏颌畸形患者的牙弓特征,为临床矫治提供参考。方法 采用三维坐标测量仪在20例偏颌
畸形患者(试验组)和20例正常人(对照组)的牙模型上测量上下颌尖牙、前磨牙和磨牙牙尖的三维坐标值,分
析牙弓矢向和横向的对称性、上下牙弓的协调性和牙齿倾斜度,采用SAS 6·03进行统计学检验。结果 试验组上
颌尖牙和第一前磨牙距腭中缝的距离偏向侧大于偏离侧(P0·05);上颌后牙偏向侧颊向倾斜度大于偏离侧,下颌后牙偏向侧
舌向倾斜度大于偏离侧(P0·05)。结论 偏颌畸
形患者上牙弓前部窄于下牙弓,上颌牙齿矢向位置无差别,而上下颌两侧后牙颊舌向倾斜度存在明显差异。
英文摘要
Objective To study the characteristics of dental arches in the patients with facial asymmetry.Methods 20 facial asymmetrical patientswere chosen as the study subjects. Theywere 8 boys and 12 girls, aged from12-yearto 16-year old. 20 nor- mal occlusion persons without signs of facial asymmetry were chosen as control. Dental casts were measured by 3-dimension mea- suring machine. Dental arch asymmetry, coordination between upper and lower dental arch, and dental inclinationwere measured. SAS 6·03 was used in statistical analysis.Results The distance from cuspid and the first bicuspid to the median palatal raphe in the side of crossbite was largerthan that of contralateral side in maxilla. The distance from cuspid, bicuspids and the firstmolarto the midline in the side of crossbite was smaller than that of contralateral side in mandible(P
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