Journal of The Japanese Stomatological Society
Online ISSN : 2185-0461
Print ISSN : 0029-0297
ISSN-L : 0029-0297
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Displaying 1-6 of 6 articles from this issue
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  • Innsbruck-style retromandibular anterior trans-parotid approach for condylar fractures: A retrospective review of 39 fractures
    Ryo SASAKI, Yorikatsu WATANABE, Noriko MIYAMOTO, Kaori AGAWA, Toshihir ...
    2024 Volume 73 Issue 1 Pages 1-8
    Published: 2024
    Released on J-STAGE: March 30, 2024
    DOIhttps://doi.org/10.11277/stomatology.73.1
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    The retromandibular anterior trans-parotid （RAT） approach and a triangular-positioned double mini-plate osteosynthesis （TDO） technique have been reported from Innsbruck Medical University. This minimally invasive technique involves direct visualization of the condyle and is associated with lower incidence of facial palsy. A retrospective review was performed on the RAT approach and TDO technique conducted by a surgeon and team at two hospitals in Tokyo during a 3-year 10-month period. This technique was performed on 35 patients with 39 condylar fractures. Sixty-nine percent of cases were due to accidental fall, 17％ to traffic accidents, and 9％ to sports. Further, 92％ cases were condylar base fractures. Ninety-seven percent of cases achieved good occlusion. The mean maximum mouth opening was 49 ± 1.3mm. Postoperatively, facial palsy developed in three patients （7.7％）, and two of them developed Frey syndrome at approximately postoperative 30 months （5.1％）. All patients completely recovered within postoperative 3 months. One case each of salivary fistula, visible scar, and condylar resorption was found （2.6％）. No case of massive bleeding during surgery, hematoma, or TMJ pain after surgery was found. This technique could achieve good occlusion with low incidence of complications. and could contribute to the early social reintegration of patients.
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  • A case of multiple dentigerous cysts of bilateral maxillary and mandibular molars with kissing molars
    Susumu HASHITANI, Mutsuki KAWABE, Miho UETA
    2024 Volume 73 Issue 1 Pages 9-15
    Published: 2024
    Released on J-STAGE: March 30, 2024
    DOIhttps://doi.org/10.11277/stomatology.73.9
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    Kissing molars is an extremely rare condition of impacted permanent molars that have occlusal surfaces in contact with each other in a single follicular space, with roots pointing in opposite directions, and the condition occurs only in mandibular fully impacted molars. We report a case of bilateral multiple dentiger­ous cysts in the maxilla and mandible found around the second and third molars with kissing molars. A 23-year-old woman was referred to our department for an abnormality of molars that was found on panoramic radiography. Bilateral impacted second and third molars in the maxilla and mandible were recognized and there was a radiolucent area surrounding their crown. Furthermore, kissing molars were recognized in the left mandible. These teeth and cysts were removed under general anesthesia. Histopathological findings showed inflammatory granulation tissue and fibrous connection in the cyst wall tissue lined with stratified squamous epithelium. All the pathological diagnoses were dentigerous cyst. The patient’s postoperative course has been good, and she is being followed up by a general dentist.
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  • A case of teeth straying into the mediastinum due to traffic trauma
    Naoki MIZOBATA, Shigeru SUZUKI, Yukari TASAKA, Masamichi UEDA, Yosuke ...
    2024 Volume 73 Issue 1 Pages 16-21
    Published: 2024
    Released on J-STAGE: March 30, 2024
    DOIhttps://doi.org/10.11277/stomatology.73.16
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    In cases of extensive trauma including the maxillofacial area due to traffic injuries, chest trauma may occur due to penetration or blunt trauma. Therefore, a prompt and appropriate response is required in close cooperation with other departments, and foreign body invasion must also be considered. We report a case of teeth straying into the mediastinum due to traffic trauma. The patient was a 48-year-old man who fell while riding a road bike and was transported by emergency services due to facial injury and a stab wound in the neck by a sharp iron bar. Tracheal intubation was performed, and extensive wounds were treated by our department and otorhinolaryngology. Antibiotics were administered to prevent mediastinitis, but inflammatory response continued and mediastinitis was suspected due to teeth remaining in the front mediastinum. Foreign matter removal and drainage were performed under general anesthesia on the 9th day of hospitalization. His general condition improved after surgery and the facial wounds healed well, so he was transferred to a nearby hospital on the 19th day of hospitalization.
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