上颌近中阻生尖牙伴发邻牙牙根吸收的临床特征研究  

Study on clinical characteristics of impacted maxillary canine⁃linked incisor root resorption

作　　者：樊思羽 薛逸文 宋枭 邓润智[1] 郝静[1] FAN Siyu;XUE Yiwen;SONG Xiao;DENG Runzhi;HAO Jing(Department of Nanjing Stomatological Hospital,Affiliated Hospital of Medical School,Nanjing University,Nanjing 210008,China)

机构地区：[1]南京大学医学院附属口腔医院,南京市口腔医院正畸科,江苏南京210008

出　　处：《口腔医学》2023年第7期638-642,共5页Stomatology

基　　金：南京市医学科技发展项目(YKK21183)。

摘　　要：目的采用锥形束CT(cone⁃beam computed tomography,CBCT)检测不同年龄段上颌近中阻生尖牙患者的颌面骨骼形态及阻生尖牙在颌骨内的位置并分析其临床特征,为阻生尖牙临床诊疗提供线索。方法选取伴发邻牙牙根吸收的上颌尖牙近中阻生患者48例,按照年龄分为3组:11~14岁、15~19岁、20~30岁,观测不同年龄组患者临床特征、颌面骨骼形态及阻生尖牙位置等指标,采用SPSS 22.0软件包进行方差分析及卡方检验。结果不同年龄段伴发邻牙牙根吸收上颌近中阻生尖牙患者覆牙合覆盖关系、阻生牙位置、牙根吸收牙位、侧切牙形态、阻生侧牙列间隙、前牙弓宽度存在统计学差异。11~14岁患者更易发生覆牙合覆盖关系异常、尖牙唇侧阻生、侧切牙牙根吸收;15~19岁患者前牙弓宽度更为狭窄;20~30岁患者更易发生尖牙腭侧阻生、中切牙和侧切牙牙根均吸收、侧切牙形态异常及阻生侧牙列间隙。结论不同年龄段伴发邻牙牙根吸收上颌尖牙近中阻生患者临床特征存在差异。早期诊疗不同年龄阻生牙患者时,若其覆牙合覆盖关系、阻生牙位置、牙根吸收牙位、侧切牙形态、阻生侧牙列间隙、前牙弓宽度等指标异常,应及时关注并防范邻牙牙根吸收的发生。Objective To analyze clinical characteristics of patients at different ages with cone⁃beam computed tomography(CBCT),providing clues for clinical diagnosis and treatment of impacted canine.Methods Forty⁃eight patients with impacted maxillary canine⁃linked incisor root resorption were selected and divided into three groups of varied ages:11-14 years old,15-19 years old,20-30 years old.Clinical characteristics,maxillofacial bone morphology,impacted canine position and other indicators of patients in different age groups were measured and analyzed.SPSS 22.0 software package was used for ANOVA and chi⁃square test.Results There were statistical differences in the overjet and overbite,impacted tooth position,the position of incisor with root absorption,lateral incisor shape,excess dentition space,and anterior arch width of patients with impacted maxillary canine⁃linked incisor root resorption at varied ages.Patients aged 11-14 years were more likely to have overjet and overbite,labial impacted canine,and root resorption of lateral in⁃cisors.The width of anterior arch was narrower in patients aged 15-19 years.Patients aged 20-30 years were more prone to have pala⁃tal impacted canine,root resorption of central and lateral incisors,morphological abnormality of lateral incisors and excess dentition space.Conclusion Clinical characteristics of patients with impacted maxillary canine⁃linked incisor root resorption at varied ages are different.In the early diagnosis and treatment of patients with impacted teeth of different ages,attention should be paid to overjet and o⁃verbite,impacted tooth position,the position of incisor with root absorption,lateral incisor shape,excess dentition space,and anterior arch width to prevent adjacent tooth root resorption.

关 键 词：上颌阻生尖牙 牙根吸收 锥形束CT 

分 类 号：R783.5[医药卫生—口腔医学]