下切牙缺失患者不同垂直骨面型颏部形态特征的对比分析  

Comparative analysis of chin morphological characteristics of different vertical facial types in patients with congenital absence of lower incisors

作　　者：董雪 高丽荣[1] 窦一峰 张建全[1] Dong Xue;Gao Lirong;Dou Yifeng;Zhang Jianquan(Department of Stomatology,Tianjin Baodi Hospital,Tianjin 301800,China;不详)

机构地区：[1]天津市宝坻区人民医院口腔科,天津301800 [2]天津市宝坻区人民医院网络信息中心,天津301800

出　　处：《新医学》2023年第1期70-74,共5页Journal of New Medicine

摘　　要：目的 探讨下切牙先天缺失患者不同垂直骨面型的颏部形态特征,并探索其与正常人群的差异。方法分层随机抽取120例青少年女性患者作为研究对象,60例先天缺失一颗下切牙的患者为实验组;60例无牙齿缺失的患者为对照组;每组高角、均角、低角各20例。每位患者均拍摄头颅侧位片,并对所有的测量结果进行统计分析。结果 颏高度和颏曲度从大到小依次为高角组、均角组、低角组(P均<0.05),实验组颏高度最大为(21.20±1.32)mm,最小为(16.91±1.57)mm,对照组颏高度最大为(23.96±1.04)mm,最小为(19.70±1.66)mm。高角组颏角小于低角组(P <0.05)。实验组的ANB、Y轴角、颏曲度均大于对照组(P均<0.05),而SNB、颏高度、颏厚度、颏最小厚度、颏后厚度、颏角等均小于对照组(P均<0.05)。结论 垂直骨面型不同,患者的颏部形态有所不同。下切牙先天缺失患者的颏部形态与正常人群相比存在一定差异,在正畸治疗中,医师应着重关注下切牙先天缺失患者的颏部形态,以设计合理的治疗方案。Objective To investigate the morphological characteristics of the chin in patients with congenital absence of lower incisors with different vertical facial types, and to explore their differences with the normal population. Methods 120 female adolescent patients were stratified randomly selected as the study subjects. Among them, 60 cases of congenital loss of a lower incisor were assigned into the experimental group, and 60 cases without tooth loss were allocated into the control group. There were 20 cases of high angle, average angle and low angle in each group. All patients took lateral cephalometric films. The measurement results were statistically analyzed. Results The height and curvature of the chin from large to small were high angle group, average angle group and low angle group(all P < 0.05). The maximum chin height in the experimental group was(21.20±1.32) mm, the minimum chin height was(16.91±1.57) mm. In the control group, the maximum chin height was(23.96±1.04) mm, and the minimum chin height was(19.70±1.66) mm. The chin angle in the high angle group was smaller than that in the low angle group(both P < 0.05). In the experimental group, the ANB, Y-axis and chin curvature were significantly larger(all P < 0.05), while SNB, chin height, chin thickness, minimum chin thickness, posterior chin thickness and chin angle were significantly smaller compared with those in the control group(all P < 0.05). Conclusions The chin morphology is different among patients with different vertical facial types. The chin morphology of patients with congenital loss of the lower incisors is different from that of normal population. In orthodontic treatment, extensive attention should be paid to the chin morphology of patients with congenital loss of lower incisors, thereby designing a reasonable treatment regimen.

关 键 词：垂直骨面型 下切牙先天缺失 颏 形态特征 

分 类 号：R783.3[医药卫生—口腔医学]