Participants received a multimodal physiotherapy program consisting of one 30-minute session per week for six weeks, delivered by a trained physiotherapist. The intervention included manual therapy techniques targeting the masticatory muscles combined with strengthening and motor coordination exercises.

Participants received thermoplastic occlusal splint therapy (3 mm thickness) and were instructed to wear the device nightly during sleep for six consecutive weeks. Splint fitting and occlusal adjustments were performed by a qualified dentist.

Participants received multimodal physiotherapy consisting of one 30-minute session per week for six weeks, delivered by a trained physiotherapist. The intervention included manual therapy techniques (compression and transverse and longitudinal massage of the masseter, compression of the medial pterygoid, longitudinal massage of the temporalis, and bilateral stretching of the masseter and medial pterygoid muscles) combined with therapeutic exercises focused on strengthening (resisted mouth opening, closing, and lateral movements) and motor coordination.

Pain intensity will be assessed using the Numerical Pain Rating Scale (NPRS), an 11-point scale ranging from 0 (no pain) to 10 (worst imaginable pain). Participants will rate their worst pain during daily activities in the previous 24 hours.

Pressure pain threshold will be assessed using an analogue algometer applied perpendicularly to the masseter and temporalis muscles bilaterally. Three measurements will be taken at each site and the mean value will be used for analysis.