(A219) Examining the Link Between Eustachian Tube Dysfunction and TMJ Issues

Introduction: Eustachian tube dysfunction (ETD) and temporomandibular joint (TMJ) disorders (TMD) are common conditions encountered in otolaryngology, often affecting patients with overlapping symptoms. These conditions share common symptoms such as ear pain, tinnitus, and a sensation of fullness, due to their close anatomical relationship and shared neural pathways. This study seeks to determine whether a diagnosis of TMJ or ETD increases the likelihood of developing the other condition, compare the transition rates between TMJ and ETD patients, and identify demographic and risk factors that contribute to susceptibility to both disorders. Understanding the interplay between these conditions could lead to more targeted diagnostic approaches and personalized treatment plans for patients with these overlapping symptoms.

Methods: A retrospective study was conducted using diagnostic codes to identify patients with ETD and TMJ conditions. The study tracked patients diagnosed with ETD then TMJ, and vice versa, along with the number of days between diagnoses. Demographic information, including age and gender, was also recorded.

Results: A statistically significant association exists between the initial and future diagnoses of TMJ and ETD (χ² = 71.69, p < 0.05, Cramér’s V = 0.0319), indicating a non-independent relationship, though the strength is weak. Caucasians and females have a significant association with developing TMD pain and ETD (p < 0.01). Logistic regression shows that Caucasian females with ETD are 15.67 times more likely to transition to a future TMJ diagnosis.

Conclusions: There is a weak association between initial TMJ and ETD diagnoses and the future development of the other condition. Caucasian females are more likely to develop both conditions, with those diagnosed with ETD being more likely to transition to TMD. Demographic factors, particularly race and gender, influence these transitions. Patients with ETD or TMJ do not require routine concern about developing the other condition, but monitoring for symptoms is recommended if risk factors are present.