用于双侧下颌骨骨折所致牙关紧闭的乙烯-醋酸乙烯酯片装置。

Ihara Yoshiaki, Nakamichi Yuka, Tashimo Yuichi, Nozue Shinji, Hayashi Kota, Ishiguro Mitsunori, Takahashi Koji

Division of Oral Rehabilitation Medicine, Department of Special Needs Dentistry, School of Dentistry, Showa University, Tokyo, Japan.

Case Rep Dent. 2021 Aug 25;2021:8340485. doi: 10.1155/2021/8340485. eCollection 2021.

Trismus is commonly caused by temporomandibular joint disorders and maxillofacial fractures. We report the case of a 62-year-old woman with trismus and difficulty in mastication caused by bilateral mandibular fractures. She had a maximal interincisal opening distance (MID) of 22 mm. Mouth-opening training was administered using a novel dental mouth-training device custom-made using ethylene vinyl acetate sheets and according to the dentition and extent of mouth-opening of the patient. After 2 months of training, the MID increased to 42 mm. With adequate training, this device is effective in treating trismus due to scarring.

牙关紧闭通常由颞下颌关节紊乱和颌面骨折引起。我们报告了一例62岁女性因双侧下颌骨骨折导致牙关紧闭和咀嚼困难的病例。她的最大切牙间开口距离（MID）为22毫米。使用一种新型的牙科口腔训练装置进行开口训练，该装置是根据患者的牙列和开口程度，用乙烯醋酸乙烯酯片定制而成。经过2个月的训练，MID增加到了42毫米。通过适当的训练，该装置在治疗因瘢痕形成导致的牙关紧闭方面是有效的。