Telkar Swaroop, Khan Mubeen K, Shukla Anil Kumar, Dodamani Arun, Yalsangi Shilpa, Telkar Deepti
Department of Oral Medicine and Radiology, ACPM Dental College, Dhule, India.
J Investig Clin Dent. 2010 Nov;1(2):96-100. doi: 10.1111/j.2041-1626.2010.00018.x.
The aim of the present study was to evaluate the effect of occlusal splint therapy by determining the cross-sectional dimension of masseter muscle using ultrasound in patients with temporomandibular joint disc displacement with reduction.
Twenty-seven patients aged between 20 and 40 years were included in the study. A detailed history was obtained, and a comprehensive clinical examination was carried out. Subjective assessment with structured pro forma was performed pre-occlusal and post-occlusal splint therapy. The objective measurement of the bilateral masseter muscle thickness was recorded using real-time ultrasonography before and after splint therapy.
The mean ultrasound thickness of the masseter muscle in the pre-clenching state before splint therapy was 9.45 mm (SD 1.39), and the post-clenching state was 13.15 mm (SD 2.23). After splint therapy, the mean thickness in the pre-clenching state was 9.14 mm (SD 1.31), and the post-clenching state was 12.78 mm (SD 2.23; P<0.001).
Ultrasonographic measurements of the masseter muscle in patients with temporomandibular joint disc displacement with reduction can be a useful tool to assess the effectiveness of occlusal splint therapy. Such conservative measures can significantly reduce masticatory muscle tenderness, especially of the temporalis and masseter.
本研究的目的是通过超声测定颞下颌关节盘可复性移位患者咬肌的横截面积，以评估咬合板治疗的效果。
本研究纳入了27例年龄在20至40岁之间的患者。详细询问病史，并进行全面的临床检查。在咬合板治疗前和治疗后，使用结构化表格进行主观评估。在咬合板治疗前后，使用实时超声记录双侧咬肌厚度的客观测量值。
咬合板治疗前，紧咬前状态下咬肌的平均超声厚度为9.45mm（标准差1.39），紧咬后状态下为13.15mm（标准差2.23）。咬合板治疗后，紧咬前状态下的平均厚度为9.14mm（标准差1.31），紧咬后状态下为12.78mm（标准差2.23；P<0.001）。
超声测量颞下颌关节盘可复性移位患者的咬肌，可作为评估咬合板治疗效果的有用工具。这种保守治疗措施可显著减轻咀嚼肌压痛，尤其是颞肌和咬肌。
