Bajoria Atul Anand, Sarkar Shromona, Sinha Pallawi
Department of Oral Medicine and Radiology, Kalinga Institute of Dental Sciences, KIIT University, Bhubaneswar, Odisha, India.
Consultant Prosthodontist, KIIT University, Bhubaneswar, Odisha, India.
J Int Soc Prev Community Dent. 2019 Mar-Apr;9(2):194-204. doi: 10.4103/jispcd.JISPCD_435_18. Epub 2019 Apr 12.
The purpose of this study was to describe the radiographic characteristics of odontogenic maxillary sinusitis as seen on cone beam computed tomography (CBCT) scans and determine whether any tooth or any tooth root, was more frequently associated with this disease.
The present study included 500 CBCT images that included the entire maxillary sinus of both the sides in all the three planes. The modified classification of Abrahams and Glassberg was used to assess maxillary sinusitis of odontogenic origin. Furthermore, the proximity of the tooth root to the sinus floor, periapical pathology, and the septae within the maxillary sinus were also assessed.
In the present study, 1000 hemimaxillas were analyzed. Majority of the cases (74.9%) the apex of either tooth was touching the floor of the sinus. While 16.9% were in close relationship to the sinus while 8.2% of the cases, the apices were present within the sinus. Furthermore, in the present study, 38 of the total cases had an odontogenic cause of maxillary sinusitis, whereas 273 of them had a nonodontogenic cause, 96 have an undetermined cause, and the rest 593 cases had healthy sinus.
The incidence of odontogenic sinusitis is likely under-reported in the available literature. The introduction of low-dose CBCT is particularly useful to establish a definitive diagnosis to augment in the treatment of chronic maxillary sinusitis of odontogenic origin.
本研究旨在描述锥形束计算机断层扫描（CBCT）图像上牙源性上颌窦炎的影像学特征，并确定是否有任何牙齿或牙根与该疾病的关联更为频繁。
本研究纳入500张CBCT图像，这些图像在三个平面上均包括双侧的整个上颌窦。采用Abrahams和Glassberg的改良分类法评估牙源性上颌窦炎。此外，还评估了牙根与窦底的距离、根尖病变以及上颌窦内的间隔。
在本研究中，共分析了1000个半侧上颌骨。大多数病例（74.9%）中，任何一颗牙齿的根尖都接触到了窦底。16.9%的病例与窦关系密切，8.2%的病例根尖位于窦内。此外，在本研究中，38例上颌窦炎病例有牙源性病因，273例有非牙源性病因，96例病因不明，其余593例鼻窦健康。
现有文献中牙源性鼻窦炎的发病率可能报道不足。低剂量CBCT的引入对于明确诊断以辅助治疗牙源性慢性上颌窦炎特别有用。
