上颌窦底壁与上颌后牙根尖位置关系的临床与锥形束CT研究

口腔医学研究 ›› 2015, Vol. 31 ›› Issue (12): 1216-1219.

上颌窦底壁与上颌后牙根尖位置关系的临床与锥形束CT研究

滕跃辉,洪渊,林梓桐,杨振宇,王铁梅^*

南京市口腔医院·南京大学医学院附属口腔医院口腔颌面医学影像科江苏南京 210008

收稿日期:2015-03-26 出版日期:2015-12-28 发布日期:2016-03-21
通讯作者: 王铁梅,E-mail:tiemei106@263.net
作者简介:滕跃辉(1991~),男,云南昆明人,硕士在读,主要从事口腔颌面医学影像学研究
基金资助:
江苏省自然科学基金面上项目(编号:BK20141083)
江苏省南京市医学科技发展重点项目(编号:ZKX14049)

Assessment of Topographic Relationship between Maxillary Sinus Floors and Upper Molar Root Apices by Cone-beam Computed Tomography.

TENG Yue-hui, HONG Yuan, LIN Zi-tong, YANG Zheng-yu, WANG Tie-mei.

Department of Radiology, Stomatology Hospital of Nanjing, Nanjing 210008, China

Received:2015-03-26 Online:2015-12-28 Published:2016-03-21

摘要/Abstract

摘要： 目的:通过锥形束CT影像分析无症状人群上颌窦底壁与上和后牙根尖位置关系,为上颌后牙区临床治疗提供理论依据。方法:选取53例98侧无症状人群的上颌窦锥形束CT影像,三维重建后在选取的截面上测量784个根尖与上颌窦底壁的距离,上颌后牙根尖的位置据此分为4类,并将各例上颌窦底壁与上颌后牙根尖距离的均值进行95%置信区间估计。结果:上颌第一磨牙远中颊根根尖距离上颌窦底壁的平均距离最短,为(0.44±0.61) mm(置信度95%).上颌磨牙根尖广泛存在于上颌窦底壁密切接触的情况,其中上颌第二磨牙与上颌窦底壁的关系最为密切。结论:上颌磨牙根尖与上颌窦底壁位置关系密切,锥形束CT可精确了解上颌后牙区的解剖情况,从而降低医源性上颌窦炎发生的概率。

关键词: 锥形束CT, 上颌窦底壁, 上颌后牙根尖, 上颌窦气化

Abstract: Objective: To evaluate the topographic relationship between maxillary sinus and upper molar root apices by Cone-beam Computed Tomography (CBCT) and to provide evidence for dental treatments that would get the upper molars involved. Methods: Included in this study were 98 sides of maxilla, left or right, in 53 non-sympotomatic subjects. The vertical distances from the root apices of maxillary molars to the floors of maxillary sinus were assessed by CBCT. The mean vertical distances were analyzed with interval estimation. Results: 98 sides could be classified into 4 categories according to the relationships between maxillary sinus and upper molar root apices. The distance for buccodistal root apex of first maxillary molar, the shortest one, was 0.44±0.61mm (confidence coefficient 95%). It was frequent that maxillary molars, particularly the second upper molar were close to the sinus floors. Conclusion: Maxillary molars were close to the maxillary sinus floor. The relationship could be and should be evaluated by CBCT before treatment when upper molars were involved so as to prevent an iatrogenic injury and an subsequent infection in the maxillary sinus.

中图分类号:

R816.98

滕跃辉,洪渊,林梓桐,杨振宇,王铁梅. 上颌窦底壁与上颌后牙根尖位置关系的临床与锥形束CT研究[J]. 口腔医学研究, 2015, 31(12): 1216-1219.

TENG Yue-hui, HONG Yuan, LIN Zi-tong, YANG Zheng-yu, WANG Tie-mei.. Assessment of Topographic Relationship between Maxillary Sinus Floors and Upper Molar Root Apices by Cone-beam Computed Tomography.[J]. Journal of Oral Science Research, 2015, 31(12): 1216-1219.

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