锥形束CT在上颌埋伏中切牙诊断中的应用  

Application of cone beam computed tomography in the diagnosis of unerupted maxillary central incisor

作　　者：顾月光[1] 王珊[1] 谷妍[1] 赵春洋[1] 许远[1] 刘可[1] 王林[1] 

机构地区：[1]南京医科大学口腔医学研究所,210029

出　　处：《实用口腔医学杂志》2012年第6期717-720,共4页Journal of Practical Stomatology

基　　金：江苏高校优势学科建设工程资助项目;国家自然科学基金(编号:30973361;81170981)

摘　　要：目的:探讨锥形束CT(CBCT)在上颌埋伏中切牙诊断中的作用。方法:选择正畸临床33例上颌中切牙埋伏阻生患者作为研究对象,拍摄全景片和CBCT,由10位正畸医生对33例埋伏牙患者的全景片和CBCT分别进行测量、分析,填写研究表格。所得数据用SPSS 17.0软件,采用McNemar检验、Kappa检验和配对t检验进行统计学分析。结果:CBCT与全景片对埋伏牙是否弯根、近中切角距中线距离和有无多生牙等分析项目没有统计学差异,其余分析项目均有统计学差异。结论:对上颌埋伏中切牙诊断,CBCT更直观、三维测量更精确,更好地指导临床。Objective： To study the effect of cone beam computed tomography（CBCT） in the diagnosis of unerupted maxillary central incisor. Methods： 33 patients undergoing orthodontic treatment were included. For each unerupted maxillary central incisor, pano- ramic radiograph（PR） and CBCT were used in diagnosis. Ten orthodontic dentists completed the table which had been formulated. The images were measured and the data analysis was performed using McNemar test, Kappa test and paired t-test by SPSS 17.0 soft ware. Results ： The dimension data of the central incisor, the distance between the mesial incisor angle and the midline of the arch, dilaceration of the central incisor root and the existence supernumerary teeth obtained by PR and CBCT showed no statistic difference,while the other analysis items did. Conclusion： CBCT diagnosis of the unerupted incisor is more direct and more accuracy than panoramic radio- graph.

关 键 词：上颌埋伏中切牙 锥体束CT 全景片 

分 类 号：R783.5[医药卫生—口腔医学]