安氏Ⅱ类2分类合并短根异常症上颌中切牙牙槽骨形态测量  

Morphology analysis of alveolar bone of maxillary central incisor in patients of Angle classⅡdivision 2 with short root anomaly disease

作　　者：黄敏 赵磊 何丽明 季红梅 周翠玲 HUANG Min;ZHAO Lei;HE Li-Ming(Department of Stomatology,The 1st Affiliated Hospital of Dali University Yunnan Province the Forth People’s Hospital,Dali 671000,Yunnan,China)

机构地区：[1]大理大学第一附属医院云南省第四人民医院口腔科,云南大理671000 [2]大理大学临床医学院口腔医学教研室 [3]大理儒雅口腔诊所

出　　处：《吉林医学》2024年第8期1796-1801,共6页Jilin Medical Journal

基　　金：云南省教育厅科学研究基金项目[项目编号:2023J0898];大理大学第一附属医院临床医学学科队伍建设项目[项目编号:DFYGG2023007]。

摘　　要：目的:评估安氏Ⅱ类2分类错[牙合]畸形合并短根异常症(SRA)患者的上颌中切牙牙槽骨三维形态学特征,对其正畸治疗和风险防范提供参考依据。方法:选取就诊的安氏Ⅱ类2分类错[牙合]畸形患者112例为研究对象,分为研究组(SRA患者)与对照组(正常牙根患者)各56例。拍摄锥形束CT(CBCT)后测量两组患者左右两侧上颌中切牙牙槽骨厚度和高度、骨开窗和骨开裂发生率并进行统计学分析。结果:研究组唇侧牙槽骨厚度在根中平面、根尖平面均小于对照组;牙槽骨总厚度在根尖平面小于对照组,差异均有统计学意义(P<0.05);研究组唇侧牙槽骨高度大于对照组,差异有统计学意义(P<0.05);研究组唇侧牙槽骨厚度在根尖平面<1 mm占比高于对照组,在根中和根尖平面>2 mm占比均低于对照组,差异有统计学意义(P<0.05);研究组骨开窗和骨开裂的发生率高于对照组,差异有统计学意义(P<0.05)。结论:对于安氏Ⅱ类2分类SRA患者的正畸治疗,应结合其上颌中切牙牙槽骨菲薄、附着高度小、骨缺损发生率高的特点制定个性化的牙移动方案。Objective To investigate the alveolar bone three-dimensional morphological feature of maxillary central incisors in patients of Angle classⅡdivision 2 with short root anomaly disease(SRA),in order to provide references for orthodontic treatment and risk control.Method 112 patients of Angle classⅡdivision 2 were selected and divided into study group(n=56,SRA)and control group(n=56,normal root).CBCT were used to measure alveolar bone thickness,height,fenestration and dehiscence in maxillary central incisors respectively.Statistical analysis was used by SPSS 26.0 software package after measurement.Results The study group's thickness of labial alveolar bone at middle and apex of root were thinner than those of the control group;The study group’s thickness of total alveolar bone at apex of root was thinner than that of the control group,there were significant statistical differences(P<0.05).The study group's height of labial alveolar bone was larger than that of the control group,there were significant statistical differences(P<0.05).The study group's rate of thickness of labial alveolar bone at apex of root<1 mm was higher than that of the control group.The study group's rate of thickness of labial alveolar bone at middle and apex of root>2 mm was lower than those of the control group,there were significant statistical differences(P<0.05).The study group's rate of fenestration and dehiscence were higher than those of the control group,there were significant statistical differences(P<0.05).Conclusion In order to formulate individual tooth movement plan,the characteristics of thin alveolar bone,low attachment height and high rate of bone defects in maxillary central incisors should be considered in the treatment of Angle classⅡdivision 2 with SRA.

关 键 词：安氏Ⅱ类2分类 短根异常症 上颌中切牙 牙槽骨形态 骨缺损 

分 类 号：R783.5[医药卫生—口腔医学]