摘要
Abstract
Objective To study the different facial types of adolescent in Gansu area of chin soft tissue morphology. Methods Selecting treatment in orthodontic Department of Gansu province people's hospital patients as the research object, X- ray cephalogram, screening of mandibular plane angle angle F1- MP is located at 22o~33o,between the age12- 16 years old,in 120 cases of patients with no object of study. According to the ANB angle will be divided into three groups: type I skeletal pattern: 0oP<ANBP<5o;class II skeletal pattern: ANBP>5o;class III skeletal pattern:ANBP<0 ,and the Wits value is less than 0. Evaluation of patients with chin soft tissue morphology.All data were statistically analyzed by using SPSS19.0 statistical software. Results The results showed between the genders only chin height display has statistical significance,adolescent male chin height greater than women;for other soft tissue chinmorphology does not constitute a significant difference. Conclusion This paper foundchin morphology in 69.4% for outstanding performance,30.6% of the patients showed vertical type.It was also found that the characteristics ofclass II patients is mainly the upper lip protrusion of chin, lip the mentolabial sulcus depth was higher than that of class I and class III.Class III patientscharacterized mentolabial sulcus shallow,chin length than the other twoleader,also shows that the class III patients chin is class I and class IIdevelopment excessive, class II patients relative deficiency of chin.关键词
青少年/颏部/形态/甘肃省Key words
adolescent/chin/morphology/Gansu分类
医药卫生
