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标题： Comparison of panoramic radiography and cone-beam computed tomography for assessing radiographic signs indicating root protrusion into the maxillary sinus 本地全文： 下载 作者： Yun-Hoa Jung ; Bong-Hae Cho ; Jae Joon Hwang 等期刊名称： Imaging Science in Dentistry 印刷版ISSN： 2233-7822 出版年度： 2020 卷号： 50 期号： 4 页码： 309-318 DOI： 10.5624/isd.2020.50.4.309 出版社： Korean Academy of Oral and Maxillofacial Radiology 摘要： Purpose :This study investigated correlations between findings on panoramic radiographs and cone-beam computed tomography (CBCT) to assess the relationship between the maxillary sinus floor and the roots of maxillary posterior teeth. In addition, radiographic signs indicating actual root protrusion into the maxillary sinus were evaluated on panoramic radiographs. Materials and Methods :Paired panoramic radiographs and CBCT images from 305 subjects were analyzed. This analysis classified 2,440 maxillary premolars and molars according to their relationship with the maxillary sinus floor on panoramic radiographs and CBCT images. In addition, interruption of the sinus floor was examined on panoramic radiographs. Results :Root protrusion into the maxillary sinus occurred most frequently in the mesiobuccal roots of the second molars. The classification according to panoramic radiographs and CBCT images was the same in more than 90% of cases when there was no contact between the root apex and the sinus floor. When the panoramic radiograph showed root protrusion into the sinus, the CBCT images showed the same classification in 67.5% of second molars, 48.8% of first molars, and 53.3% of second premolars. There was a statistically significant relationship between interruption of the sinus floor on panoramic radiographs and root protrusion into the sinus on CBCT images. Conclusion :The presence of root protrusion into the sinus on panoramic radiographs demonstrated a moderate ability to predict root protrusion into the maxillary sinus. Interruption of the maxillary sinus floor could be considered an indicator of actual root protrusion into the maxillary sinus. Copyright © 2020 by Korean Academy of Oral and Maxillofacial Radiology. 关键词： Cone-Beam Computed Tomography;Maxillary Sinus;Molar;Radiography;Panoramic
