基于锥形束CT的1138颗多生牙影像学特征分析  

Imaging analysis of 1138 supernumerary teeth by using cone-beam computed tomography

作　　者：刘晓琳 任群 白九平 康培 任贵云[1] 李向军[1] 冯晓伟[1] Liu Xiaolin;Ren Qun;Bai Jiuping;Kang Pei;Ren Guiyun;Li Xiangjun;Feng Xiaowei(Dept.of Oral and Maxillofacial Surgery,School and Hospital of Stomatology,Hebei Medical University,Hebei Key Laboratory of Stomatology,Hebei Clinical Research Center for Oral Diseases,Shijiazhuang 050017,China)

机构地区：[1]河北医科大学口腔医学院·口腔医院口腔颌面外科,河北省口腔医学重点实验室,河北省口腔疾病临床医学研究中心,石家庄050017

出　　处：《华西口腔医学杂志》2023年第6期671-677,共7页West China Journal of Stomatology

基　　金：河北省高等学校科学技术研究项目(QN2021105);河北省政府资助临床医学优秀人才培养项目(361029)。

摘　　要：目的应用锥形束CT(CBCT)分析及总结多生牙的特征,以期为临床诊疗提供参考。方法共收集718例患者(共1138颗多生牙)的CBCT影像资料作为研究对象,分析了患者就诊年龄、性别、多生牙数目、位置、形态、萌出状态、伴发症状等情况,并进一步统计分析了多生牙上下颌位置、萌出状态和性别与上述特征的相关性。结果患者平均年龄(9.54±5.32)岁,男女比2.88∶1。77.02%在替牙期就诊,数量多为1颗(50.70%);1138颗多生牙中,圆锥形最多,85.76%位于切牙区,92.09%位于上颌,46.75%呈倒置位,86.20%未萌出,65.29%牙根发育完全,60.63%对邻近结构造成影响。多生牙位于上颌或下颌在萌出状态、形态、分区、方向、牙根发育以及对邻近结构影响上差异均有统计学意义(P<0.05);多生牙是否萌出在性别、形态、分区、方向、牙根发育以及对邻近结构影响上差异均有统计学意义(P<0.05);男性在切牙区发生率高于女性,且男性多生牙牙根发育较女性更完全(P<0.05)。结论CBCT可精确分析多生牙特征,有助于临床制定诊疗方案。Objective This study aims to analyze and summarize the characteristics of supernumerary teeth by using cone-beam computed tomography(CBCT).Methods A total of 718 patients with 1138 supernumerary teeth were retrospectively collected.Age,gender,number,location,morphology,eruption status,and accompanying symptoms of the supernumerary teeth were statistically analyzed.The relationship relative to jaws,gender,and eruption status were analyzed and discussed.Results The average age of the patients was 9.54±5.32 years,and the male to female ratio was 2.88∶1.About 77.02%of the patients sought medical advice during the mixed dentition period,and 50.70%had one supernumerary tooth.These supernumeraries were most commonly conical in shape,and 85.76%of them were in the incisor region,92.09%in the upper jaw,46.75%in inverted position,and 86.20%unerupted.Overall,65.29%of them had fully developed roots,and 60.63%had an impact on adjacent structures.Significant differences were found in eruption status,morphology,zoning,direction,root development,and impact on adjacent structures between the supernumerary teeth located in the upper and lower jaws(P<0.05).Significant differences were also detected in gender,morphology,zoning,orientation,root development,and impact on adjacent structures between erupted and unerupted teeth(P<0.05).The incidence of supernumerary teeth in the incisor region was higher in males than that in females.Moreover,the root of supernumeraries was more completely developed in males than in females(P<0.05).Con⁃clusion For supernumerary teeth,CBCT images can provide accurate three-dimensional radiographic data and are valuable for clinical diagnosis and treatment planning.

关 键 词：多生牙 锥形束CT 影像学特征 诊断 治疗 

分 类 号：Q78[生物学—分子生物学]