颌骨骨岛的CBCT三维影像特点分析
Analysis of the three-dimensional image characteristics of bone island in jaw using CBCT
闫世杰 1杨连丰 1王晶艳 1张娟 1朱婷婷 1冷迪雅 1周广超 1顾培玉1
作者信息
- 1. 南京医科大学附属口腔医院影像科,江苏省口腔疾病研究重点实验室,江苏省口腔转化医学工程研究中心,江苏南京(210029)
- 折叠
摘要
目的 利用锥形束CT(cone-beam computed tomography,CBCT)分析颌骨骨岛(bone island,BI)的三维影像特点.方法 选取 4 000 例患者的CBCT数据,用NNT 10.0 软件进行CBCT数据重建,采用矢状位、冠状位和轴位图分析BI的三维特点,包括位置、形状、密度、边界、与骨皮质和牙根的关系、直径、累及的解剖结构及并发症,分析上述BI影像学特征的性别差异.结果 共 803 例有骨岛,总发生率为 20.08%.其中男 338 例,共有骨岛 389 个;女 465 例,共有骨岛 526 个.男性和女性均以 1 个骨岛为主,发生骨岛的男女性别比为 1∶1.38,但差异无统计学意义(P＞0.05).男性和女性的BI均多发于下颌前磨牙和磨牙区,主要表现为不规则形,以高密度、半舌型最多见,大多位于根尖下方并且边界不清.男性和女性BI的近远中向平均最大径均大于颊舌向平均最大径(P＜0.05),最常累及的解剖结构是下牙槽神经管、骨皮质浸润和颏孔.结论 中国人颌骨BI的三维影像特点无性别差异,CBCT能准确全面地分析BI的三维影像学特点及与周围牙和骨组织的关系.
Abstract
Objective To analyze three-dimensional(3D)radiographic characterizations of bone island(BI)in jaw using cone-beam computed tomography(CBCT).Methods CBCT data from four thousand patients were selected,reconstructed and analyzed using NNT 10.0 software.The sagittal,coronal and axial planes were used to analyze the 3D radiographic characteristics of BIs,including the localization,shape,density,boundary,the relationship between BIs and tooth and bone cortex,diameter and anatomical structures and complications involved.Their relationship with gender were analyzed.Results A total of 803 people had BIs,with the prevalence rate of 20.08%,including 338 males with 389 BIs and 465 females with 526 BIs.Both males and females had a dominant BI,and the ratio between male and female was 1∶1.38,but the difference was not statistically significant(P＞0.05).The BIs of both male and female mostly occurred in the mandibular premolars and molars area,and appeared irregular in shape,dense and contact with lingual bone cortex.Mostly BIs were apical type and with unclear boundary.The mean maximum diameter of mesial/distal direction was greater than buccal/lingual direction(P＜0.05).The most commonly involved anatomy structure was the inferior alveolar neural canal,cortical infil-tration and mental foramen.Conclusion There are no significant differences between males and females in the three-dimensional image characteristics of BIs in Chinese populations.CBCT can accurately and comprehensively analyze the 3D radiographic characteris-tics of BI and its relationship with the surrounding teeth and bone.
关键词
骨岛/锥形束CT/并发症/三维影像特点Key words
bone island/cone beam computed tomography/complication/three-dimensional radiographic characteristic引用本文复制引用
基金项目
江苏省科教能力提升工程——江苏省研究型医院建设单位(YJXYYJSDW4)
江苏省医学创新中心(CXZX202227)
出版年
2024
NETL
NSTL
万方数据