The goal of this non-randomized controlled trial is to analyze and compare occlusal force distribution patterns using T-Scan III before and after hydrostatic splint therapy on both healthy subjects and subjects with temporomandibular disorders. The main questions it aims to answer are:

• Do occlusal forces for individual teeth differ before and after hydrostatic splint therapy?
• Does the percentage distribution of forces across different sectors differ before and after hydrostatic splint therapy?

Participants will:

• Perform occlusal analysis using the T-Scan III device;
• Use a hydrostatic splint for 30 minutes;
• Perform a second occlusal analysis after using the hydrostatic splint.

Researchers will compare healthy subjects and subjects with temporomandibular disorders to see if hydrostatic splint therapy makes a difference in the distribution patterns of occlusal forces.

Inclusion Criteria:

• healthy subjects with Angle Class I and a normal line of occlusion without malpositioned or rotated teeth;
• complete permanent dentition except for the third molars;
• no fixed prosthesis;
• no dental caries;
• no restorations on the occlusal surfaces of molars and premolars extending more than one-third of the surface;
• no restorations on incisal edge;
• no tenderness on percussion of any teeth;
• no history of previous endodontic and orthodontic treatment,
• extensive maxillofacial surgery;
• no systematic neurological disorders.

Exclusion Criteria:

• presence of orofacial pain that limits mouth opening;
• malocclusion (e.g., open bite, increased overjet or reverse overjet, cross bite);
• skeletal anomalies with occlusal disturbance.

Yes, there is a plan to make individual participant data and related data dictionaries available to other researchers. In addition to sharing the individual participant data, we also plan to publish a scientific article in the Journal of Dental Research to disseminate our findings.