Abstract：
Background: The aim of the study was to assess the position of the hyoid bone, as well as the width of the nasopharynx and oropharynx after occlusal splint therapy combined with physiotherapy in patients diagnosed with temporomandibular disorders (TMD). Methods: This was a clinical trial study. The study group consisted of 40 patients diagnosed with TMD, who were qualified for the treatment combining physiotherapy and occlusal splint therapy. Hyoid bone position as well as the width of the nasopharynx and oropharynx were assessed in lateral cephalograms taken before and after the end of the treatment. There were 15 generally healthy participants included into the control group, who had taken lateral cephalograms twice within the period of 1 to 2 years and did not receive any occlusal treatment in the meantime. Results: The position of the hyoid bone was significantly lowered and the dimension of the lower part of the oropharynx was significantly decreased after the end of the long-term occlusal splint therapy combined with physiotherapy in patients diagnosed with TMD. Conclusions: Long-term occlusal splint therapy combined with physiotherapy affected the position of the hyoid bone and the dimension of the lower part of the oropharynx.
摘要：
背景：这项研究的目的是评估舌骨的位置，以及在被诊断为颞下颌关节紊乱病（TMD）的患者中，咬合夹板治疗联合理疗后鼻咽和口咽的宽度。方法：这是一项临床试验研究。研究组由40名诊断为TMD的患者组成，他们有资格接受物理疗法和咬合夹板疗法相结合的治疗。在治疗结束之前和之后采集的外侧头颅图评估舌骨位置以及鼻咽和口咽的宽度。有15名一般健康的参与者被纳入对照组，在1至2年内两次进行侧位头颅造影，在此期间未接受任何咬合治疗。结果：诊断为TMD的患者在长期咬合夹板治疗联合理疗结束后，舌骨的位置显着降低，口咽下部的尺寸显着减小。结论：长期咬合夹板治疗联合物理治疗会影响舌骨的位置和口咽下部的尺寸。
