NCT07371195

Relationship Between Upper Cervical Mobility and Temporomandibular Joint Range of Motion in Patients With Temporomandibular Disorders

• Status: Not Yet Recruiting
• Phase: —
• Study type: Observational
• Enrollment: 50 (estimated)
• Sponsor: Deraya University · Academic / Other
• Sex: All
• Age: 18 Years – 50 Years
• Healthy volunteers: Not accepted

Summary

Upper cervical spine mobility plays a crucial role in temporomandibular joint (TMJ) function. This observational study investigates the relationship between upper cervical spine mobility and TMJ range of motion in patients diagnosed with temporomandibular disorders (TMD). Cervical hypomobility may restrict mandibular movement and contribute to TMJ dysfunction through shared biomechanical and neuromuscular mechanisms.

Detailed description

Temporomandibular disorders (TMD) are multifactorial conditions involving the temporomandibular joint, masticatory muscles, or both. Prior research indicates a strong association between TMD and cervical spine dysfunction, with patients frequently exhibiting neck pain, reduced cervical motion, and muscular tenderness. This study explores how upper cervical mobility (flexion, extension, and rotation) correlates with TMJ range of motion (mouth opening, lateral excursion, and protrusion). The aim is to identify whether cervical spine hypomobility contributes to restricted jaw movement in TMD patients. A total of 50 participants with TMD will undergo standardized clinical measurements of cervical mobility using a CROM device and TMJ motion using a ruler or caliper. Pearson or Spearman correlation coefficients will be applied to evaluate the association between cervical and TMJ movement parameters.

Conditions

• Temporomandibular Disorders (TMD)
• Temporomandibular Joint Dysfunction Syndrome
• Cervicogenic Headache

Timeline

• Start date: 2026-02-01
• Primary completion: 2026-08-01
• Completion: 2026-09-01
• First posted: 2026-01-27
• Last updated: 2026-01-27

Locations

1 site across 1 country: Egypt