成人骨性Ⅱ类不同垂直骨面型患者切牙区牙槽骨面积锥形束CT研究  

Study on Alveolar Area around Incisors among Different Vertical Facial Types of Adult Skeletal Class Ⅱ Patients with CBCT

作　　者：孙毅 SUN Yi(Department of Orthodontics,Xiamen Medical College Affiliated Stomatological Hospital, Xiamen 361003,Fujian,China)

机构地区：[1]厦门医学院附属口腔医院正畸科,福建厦门361003

出　　处：《中国美容医学》2019年第1期119-121,共3页Chinese Journal of Aesthetic Medicine

基　　金：厦门市科技惠民项目(编号:3502Z20174024)

摘　　要：目的:应用锥形束CT比较不同垂直骨面型的成人骨性Ⅱ类患者上下颌切牙牙根周围牙槽骨面积的大小。方法:选择骨性Ⅱ类患者45例,根据FMA角分为低角型15例、均角型15例、高角型15例。应用DolphinImaging11.5三维软件分别测量上下颌切牙牙根周围不同水平牙槽骨的横断面面积,采用方差分析比较实验数据。结果:低角组患者上颌切牙在根颈1/3处骨面积最小(P<0.05),在根尖1/3处骨面积大于高角组(P<0.05);低角组患者下颌切牙在根中1/3水平处骨面积大于高角组患者(P<0.05),在根尖1/3水平处骨面积最大(P<0.05)。结论:低角组患者上下颌切牙根尖周围骨质较多,高角组患者较少。Objective To compare alveolar area around upper and lower incisors among three vertical facial types of skeletal Class Ⅱ patients with cone beam CT.Methods 45 skeletal Class Ⅱ patients were divided into 15 low angle cases,15 average angle cases,and 15 high angle cases by the FMA.The CBCT images were reconstructed by three-dimension Dolphin Imaging 11.5 software.Alveolar area on three levels around incisor roots was measured on cross sections.The measurements were analyzed using ANOVA.Results In upper incisors,the area around root at apical level of low angle patients was greater than high angle patients,while low angle patients had the least value at the cervical level.In lower incisors,the area around root at middle level of low angle patients was greater than high angle patients,and the area around root at apical level are greater than that in other two groups.Conclusion The amount of alveolar rounding upper and lower incisors in low angle patient was more than that of the other types.The high angle patients displayed the least bone area.

关 键 词：垂直骨面型 骨性Ⅱ类 切牙 骨面积 CBCT 

分 类 号：R783.5[医药卫生—口腔医学]