ArticleHealthcare (Basel, Switzerland)2026
Validity and Reliability of the Turkish Version of the Temporomandibular Joint Ankylosis Quality of Life Questionnaire (TMJAQoL-TR) in Patients with Severe Temporomandibular Disorders.
Article in Healthcare (Basel, Switzerland), 2026. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Not yet cited in PubMed.
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Abstract
backgroundThe Temporomandibular Joint Ankylosis Quality of Life Questionnaire (TMJAQoL) is a disease-specific instrument designed to assess quality of life in patients with temporomandibular joint (TMJ) ankylosis. No validated Turkish version of this scale existed prior to this study. The aim of this study was to translate, culturally adapt, and evaluate the Turkish version of the TMJAQoL (TMJAQoL-TR) in patients with severe temporomandibular disorders, including a predefined ankylosis subgroup. MATERIALS AND
methodsA total of 120 patients with temporomandibular complaints were included. Test-retest reliability was evaluated in a clinically stable subsample of 72 participants with a one-week interval. Following forward-backward translation and cultural adaptation procedures, the TMJAQoL-TR was administered together with the Oral Health Impact Profile Short Form-14 (OHIP-14), the Short Form-36 (SF-36), and Visual Analog Scale (VAS) pain scores. Reliability was assessed using Cronbach's α, item-level Weighted Cohen's Kappa, and test-retest Intraclass Correlation Coefficients (ICC), supported by measurement error indices (Standard Error of Measurement [SEM] and Minimal Detectable Change at 95% confidence [MDC
resultsThe TMJAQoL-TR demonstrated excellent internal consistency (Cronbach's α = 0.879) and very high test-retest reliability (ICC = 0.995; 95% CI: 0.992-0.997). Strong correlations were observed with OHIP-14 (
conclusionsThe TMJAQoL-TR appears to be a valid and reliable instrument for assessing quality of life in patients with severe TMJ-related functional limitations. Findings from the ankylosis subgroup support potential applicability within the instrument's original target population; however, further validation in larger ankylosis-specific samples is warranted.
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