Evaluation of the effect of T-Scan (TM) as an adjunct to stabilization splint in the treatment of temporomandibular joint disorders

Objective To assess the effectiveness of the stabilization splint (SS) combined with the T-Scan (TM) III system in the treatment of temporomandibular joint disorder (TMD) with myofascial pain. Methods Forty-eight enrolled patients were randomly assigned to the SS group or T-Scan (TM)-guided SS group. Mandibular Function Impairment Questionnaire (MFIQ), Maximum Comfortable Opening (MCO), Visual Analog Scale (VAS), and Patient Health Questionnaire-9 (PHQ-9) were used as the outcome variables. Results The occlusal contacts of patients in the SS plus T-Scan (TM) group showed lower Occlusal Time (OT), Disocclusion Time (DT), and Asymmetry Index of Occlusal Force (AOF) after occlusal adjustment under the guidance of the T-Scan (TM). Importantly, the TMD symptoms were alleviated more obviously in SS plus T-Scan (TM) group, with better scores for MCO and MFIQ. Conclusion T-Scan (TM)-guided occlusal adjustment of SS can obtain better OT, DT, and AOF, which furthers improvement of the therapeutic effects on TMD with myofascial pain.