Data from: Jaw biodynamic data for 24 patients with chronic unilateral temporomandibular disorder

This study assessed 24 adult patients, suffering from severe chronic unilateral pain diagnosed as temporomandibular joint (TMJ) disorder (TMD). The full dentate patients had normal occlusion and had never received an occlusal therapy, i.e., were with natural dental evolution/maturation. The following functional and dynamic factors were assessed: (1) chewing function; (2) TMJ remodeling or the condylar path (CP); and (3) lateral jaw motion or lateral guidance (LG). CPs were assessed using conventional axiography, and LG was assessed by K7 jaw tracking. Seventeen (71%) of the 24 (100%) patients consistently showed a habitual chewing side. The mean (standard deviation [SD]) of the CP angles was 47.90 (9.24) degrees. The mean (SD) of the LG angles was 42.95 (11.78) degrees. Data collection emerged from the conception of a new TMD paradigm where the affected side could be the habitual chewing side, the side with flatter lateral jaw motion or the side with an increased CP angle. These data may lead to improved diagnosis, therapy plans and evolution in TMD patients.

本研究纳入24名成年患者，均患有经确诊为颞下颌关节紊乱（temporomandibular disorder, TMD）的重度慢性单侧疼痛。所有完整牙列患者均咬合正常，且从未接受过咬合治疗，即牙列处于自然演化与成熟状态。本研究评估了以下功能与动态指标：(1) 咀嚼功能；(2) 颞下颌关节（temporomandibular joint, TMJ）重塑或髁突路径（condylar path, CP）；(3) 下颌侧向运动或侧方引导（lateral guidance, LG）。其中，髁突路径采用传统轴位描记法进行检测，侧方引导则通过K7下颌追踪系统完成评估。24例受试患者中，共17例（占比71%）存在明确的习惯性咀嚼侧。髁突路径角度的均值（标准差[SD]）为47.90（9.24）度；侧方引导角度的均值（标准差[SD]）为42.95（11.78）度。本研究的数据采集基于一种全新的颞下颌关节紊乱诊疗范式，该范式认为患侧可为习惯性咀嚼侧、侧向运动更为平缓的一侧，或髁突路径角度增大的一侧。上述数据或可助力颞下颌关节紊乱患者的诊断优化、治疗方案制定及病情转归研究。