Ozdere Eda, Ozel Gulsum Sayin, Aykent Filiz
Research Assistant, Department of Prosthodontics, Faculty of Dentistry, Selcuk University, Konya, Turkey.
Assistant Professor, Department of Prosthodontics, Faculty of Dentistry, Medipol University, Istanbul, Turkey.
J Prosthet Dent. 2016 Mar;115(3):263-6. doi: 10.1016/j.prosdent.2015.08.014. Epub 2015 Nov 11.
Trismus, a commonly observed sequela in patients who have undergone radiation therapy to treat malignancies of the head and neck, causes a loss of function that reduces patients' overall quality of life. Radiation can cause intense fibrosis in the masticatory muscles, and this fibrosis may lead to trismus. This clinical report describes the management of a patient with radiation-induced trismus who was treated with a custom-made mouth-opening device. The device had maxillary and mandibular sections, was made of a thermoactive acrylic resin material, and was connected with 2 vertical screws in the right and left canine regions. The screws were adjusted daily to increase the oral opening, such that each turn of the screws increased the opening by 0.25 mm. With the help of this device, at the end of a 4-month follow-up period, the patient's maximal interdental distance had increased from 7.16 mm to 19.50 mm. The intraoral opening device described in this study is useful for achieving a vertical opening sufficient to perform dental treatment.
牙关紧闭是头颈部恶性肿瘤放射治疗患者中常见的后遗症，会导致功能丧失，降低患者的整体生活质量。放疗可导致咀嚼肌严重纤维化，这种纤维化可能导致牙关紧闭。本临床报告描述了一名放射性牙关紧闭患者使用定制开口装置进行治疗的情况。该装置有上颌和下颌部分，由热活性丙烯酸树脂材料制成，并在左右尖牙区域用两根垂直螺钉连接。每天调整螺钉以增加开口度，每转动一圈螺钉开口增加0.25毫米。借助该装置，在4个月的随访期结束时，患者的最大牙间距离从7.16毫米增加到了19.50毫米。本研究中描述的口腔内开口装置有助于实现足以进行牙科治疗的垂直开口。
