埋伏阻生牙不同平片诊断方案的探讨  

A comparison of various conventional radiographic solutions for localization of impacted tooth

作　　者：潘晓岗[1] 钱玉芬[1] 沈刚[1] 樊林峰[2] 范新东[2] 

机构地区：[1]上海第二医科大学附属第九人民医院口腔正畸科,200011 [2]上海第二医科大学附属第九人民医院放射科,200011

出　　处：《实用口腔医学杂志》2004年第4期393-396,共4页Journal of Practical Stomatology

摘　　要：目的 :探讨对于颌骨不同部位的埋伏阻生牙应用不同平片透照技术以达到精确直观的X线影像 ,提高诊断的准确率。方法 :对 3 2例埋伏阻生牙及多生牙患者使用曲面断层片、直线断层片对埋伏阻生牙定位。结果 :通过曲面断层、直线断层及曲面结合直线断层 3种断层片诊断方案可较好的判断埋伏阻生牙及多生牙在颌骨中的位置、牙轴的方向、牙体形态、与周围组织的解剖关系。抽取 5例经手术验证 ,与X线片判别位置一致。结论 :直线断层平片诊断方案能比较准确、直观地对颌骨内埋伏阻生牙及多生牙定位 ,无需常用定位方法中考虑埋伏阻生牙相对参照牙移动的距离 ,球管移动的方向。Objective:To evaluate the reliability of localization of the impacted teeth by assessing various conventional radiographies. Methods:32 patients with impacted teeth were included. The impacted teeth were localized by conventional roentgenographic techniques including panoramic radiography (PR) and linear tomography (LT).Results:Dentomaxillary orthopantomographic solution (PR,LT and PR combined with LT) clearly presented the position of the impacted teeth. Serial cross-section linear tomography also ensured the shape and axis of the impacted teeth captured on the radiograph. The accuracy of the localization was further verified by the surgical exposure in 5 cases. Conclusion:Orthopantomographic assessing can directly and precisely localize the buccal and lingual position of the impacted teeth.

关 键 词：埋伏阻生牙 诊断方案 直线断层片 放射影像学 曲面断层片 

分 类 号：R816.98[医药卫生—放射医学]