摘要
目的探讨锥形束CT技术在儿童上颌前部埋伏多生牙中的诊治应用价值。方法对在门诊常规X线检查中发现的埋伏多生牙病例,行锥形束CT扫描,分析判断埋伏牙的位置,确定手术进路,然后拔除。结果锥形束CT结果显示:16例患者20颗上颌前部埋伏多生牙,13颗位于腭侧,5颗位于唇侧,2颗位于牙槽骨中部,与术中所见一致。锥形束CT可以准确显示上颌前部埋伏多生牙的数量、牙冠牙根形态、唇腭侧位置、萌出方向及与邻牙关系。结论锥形束CT技术的应用是精确定位儿童上颌前部埋伏多生牙有效方法。
Objective To evaluate the value of cone-beam computed tomography（CBCT） in identification the position of unerupted supernumerary teeth of anterior maxilla in adolescent.Methods Scanning by CBCT were used in cases with supernumerary teeth founded in the clinic by conventional X-ray examination to analysis the location of impacted teeth,determine the surgical approach,and then remove the teeth.Results The images of CBCT displayed in 16 patients with 20 supernumerary teeth of anterior maxilla,13 in the palatal side,5 in the labial side,2 in the middle of alveolar,the representation the unerupted teeth seen in surgery was the same with that of the CBCT before exodontia.CBCT can accurately show the number of supernumerary teeth,crown and root morphology,labial or palatal side of the location,eruption orientation and relationship with adjacent teeth.Conclusion CBCT is the most precise and effective method to determine the authentic orientation of unerupted supernumerary teeth of anterior maxilla in adolescent.
出处
《安徽医学》
2011年第10期1701-1703,共3页
Anhui Medical Journal
关键词
埋伏多生牙
上颌前部
定位
锥形束CT
Unerupted supemumerary teeth
Anterior maxilla
Position
Cone-beam computed tomography
