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CBCT and Audiological Analysis of the TMJ-Tinnitus Relationship
Sponsor: Kutahya Health Sciences University
Summary
The aim of this study is to investigate the relationship between Temporomandibular Disorders (TMD) and subjective tinnitus at both morphological and functional levels. Current literature suggests that somatosensory inputs from the temporomandibular joint (TMJ) and masticatory muscles can modulate auditory pathways, a phenomenon known as Somatosensory Tinnitus. However, the specific role of TMJ bone morphology and critical neighboring structures, such as the Petrotympanic Fissure (PTF), in this interaction remains unclear. In this clinical study, patients with tinnitus will undergo a comprehensive evaluation including Cone Beam Computed Tomography (CBCT) to quantitatively analyze condylar morphology and osteoarthritic changes. Additionally, audiological tests will be performed to assess the functional state of the auditory system. This multidisciplinary approach aims to clarify the biological link between TMD and tinnitus, potentially improving diagnostic protocols and highlighting the importance of TMJ stabilization in tinnitus management.
Official title: Investigation of the Interaction Between Temporomandibular Joint and Tinnitus Using CBCT and Audiological Methods: A Prospective Cross-Sectional Study
Key Details
Gender
All
Age Range
18 Years - Any
Study Type
OBSERVATIONAL
Enrollment
50
Start Date
2026-04-01
Completion Date
2026-07-01
Last Updated
2026-03-10
Healthy Volunteers
No
Conditions
Interventions
Cone Beam Computed Tomography (CBCT)
High-resolution 3D imaging of the temporomandibular joint (TMJ) using the Instrumentarium OP300 Dental unit. The procedure involves evaluating condylar morphology, osteoarthritic changes (flattening, resorption, osteophytes), and the anatomical structure of the Petrotympanic Fissure (PTF) based on the Sato et al. classification.
Audiological Assessment
A comprehensive evaluation of the auditory system to determine hearing thresholds and the functional status of the ear. This includes pure tone audiometry and specific tests to characterize the frequency and intensity of tinnitus in the patient group.
Clinical TMJ Examination
Systematic physical examination of the masticatory muscles and the TMJ. This includes bilateral palpation for pain and tenderness, assessment of mandibular range of motion (maximal mouth opening, lateral and protrusive movements), and recording of joint sounds (clicking or crepitation).
Locations (1)
Kütahya Health Sciences University
Kütahya, Kütahya, Turkey (Türkiye)