- 著者
- Kunihiko Sawada Toshihiko Amemiya Shigenori Hirai Yusuke Hayashi Toshihiro Suzuki Masahiko Honda Johnny Sisounthone Kunihito Matsumoto Kazuya Honda
- 出版者
- Nihon University School of Dentistry
- 雑誌
- Journal of Oral Science (ISSN:13434934)
- 巻号頁・発行日
- vol.60, no.1, pp.137-141, 2018 (Released:2018-03-24)
- 参考文献数
- 23
- 被引用文献数
- 5
We compared the diagnostic reliability of 3.0-T magnetic resonance imaging (MRI) for detection of osseous abnormalities of the temporomandibular joint (TMJ) with that of the gold standard, cone-beam computed tomography (CBCT). Fifty-six TMJs were imaged with CBCT and MRI, and images of condyles and fossae were independently assessed for the presence of osseous abnormalities. The accuracy, sensitivity, and specificity of 3.0-T MRI were 0.88, 1.0, and 0.73, respectively, in condyle evaluation and 0.91, 0.75, and 0.95 in fossa evaluation. The McNemar test showed no significant difference (P > 0.05) between MRI and CBCT in the evaluation of osseous abnormalities in condyles and fossae. The present results indicate that 3.0-T MRI is equal to CBCT in the diagnostic evaluation of osseous abnormalities of the mandibular condyle.
- 著者
- Kunihiko Sawada Dirk Schulze Kunihito Matsumoto Shigenori Hirai Koji Hashimoto Kazuya Honda
- 出版者
- 日本大学歯学部
- 雑誌
- Journal of Oral Science (ISSN:13434934)
- 巻号頁・発行日
- vol.57, no.4, pp.389-392, 2015 (Released:2015-12-13)
- 参考文献数
- 8
- 被引用文献数
- 8
We describe a rare case of osteochondroma of the coronoid process of mandible accompanied by severe trismus in a 14-year-old Japanese boy. The patient had initially been diagnosed as having internal derangement of the temporomandibular joint (TMJ), and conservative treatment had failed to improve the symptoms. Despite extremely limited TMJ movement, panoramic radiography revealed no abnormality, but magnetic resonance imaging suggested internal derangement of the left TMJ. Five months later, the trismus worsened and computed tomography revealed a bone-like mass confluent with the coronoid process, which was finally diagnosed as osteochondroma. The patient then underwent intra-oral coronoidectomy. (J Oral Sci 57, 389-392, 2015)