华西口腔医学杂志2012，Vol.30Issue(4)：399-401,3.DOI:10.3969/j.issn.1000-1182.2012.04.017
锥形束CT诊断上颌前牙区多生牙价值研究
Evaluation of cone-beam CT in diagnosis of supernumerary teeth in the anterior maxilla
摘要
Abstract
Objective To evaluate the value of cone-beam CT (CBCT) in the diagnosis and orientation of supernumerary teeth in the anterior maxilla. Methods 195 supernumerary teeth in the anterior maxilla of 146 patients were included, which were examined by CBCT. The number, shape, size, 3-dimensional position, growth direction of the supernumeraries and their relationship with the neighboring teeth were analyzed. Results The 146 patients aged from 5 to 39, and males were affected more than females in a ratio of 2.95-1. 102(69.9%) patients had single supernumerary teeth. Of the 195 supernumerary teeth, 126(64.6%) were near the middle line, 131(67.2%) were conical, 51 (26.2%) were curved root, 98(50.3%) were inverted and had a length of (11.97?.40) mm. The supernumerary teeth often caused complications. Conclusion The position of the supernumerary teeth is varied in the maxilla* and often causes permanent dentition complications. CBCT imaging yields accurate 3-dimensional pictures of supernumerary teeth, local dental and bony structures, which is helpful for diagnosis and orientation of supernumerary teeth.关键词
多生牙/锥形束CT/三维成像Key words
supernumerary teeth/ cone-beam CT/ 3-dimensional imaging分类
医药卫生引用本文复制引用
文陈妮,李果,任家银,郑广宁..锥形束CT诊断上颌前牙区多生牙价值研究[J].华西口腔医学杂志,2012,30(4):399-401,3.基金项目
四川省科技支撑计划基金资助项目(07FG002-025) （07FG002-025）
四川省科技厅软科学基金资助项目(2009ZR0074) （2009ZR0074）
中央高校基本科研业务费重点基础研究专项基金资助项目(2010SCU2) （2010SCU2）
四川省科技厅应用基础计划基金资助项目(2011JC0400) （2011JC0400）
