{"status":"ok","message-type":"work","message-version":"1.0.0","message":{"indexed":{"date-parts":[[2026,1,17]],"date-time":"2026-01-17T03:09:16Z","timestamp":1768619356705,"version":"3.49.0"},"reference-count":25,"publisher":"Wiley","issue":"4","license":[{"start":{"date-parts":[[2019,12,11]],"date-time":"2019-12-11T00:00:00Z","timestamp":1576022400000},"content-version":"vor","delay-in-days":0,"URL":"http:\/\/creativecommons.org\/licenses\/by\/4.0\/"}],"content-domain":{"domain":["onlinelibrary.wiley.com"],"crossmark-restriction":true},"short-container-title":["J of Oral Rehabilitation"],"published-print":{"date-parts":[[2020,4]]},"abstract":"<jats:title>Abstract<\/jats:title><jats:sec><jats:title>Objective<\/jats:title><jats:p>This study assessed the test\u2010retest reproducibility of the Utrecht mixing ability test (MAT) and the construct validity of the MAT in relation to the Mandibular Function Impairment Questionnaire (MFIQ) in patients with mandibular condylar fractures.<\/jats:p><\/jats:sec><jats:sec><jats:title>Material and methods<\/jats:title><jats:p>Twenty\u2010six patients treated for a mandibular condylar fracture participated in this clinimetric study; all patients performed the MAT twice. Simultaneously the MFIQ was conducted. Test\u2010retest reliability and construct validity were assessed using the intra\u2010class correlation coefficient (ICC) and Spearman correlation, respectively.<\/jats:p><\/jats:sec><jats:sec><jats:title>Results<\/jats:title><jats:p>The ICC of the MAT was 0.906 (95% CI: 0.801\u20100.957), which indicates an excellent reliability. A weak correlation of 0.386 (<jats:italic>P<\/jats:italic>\u00a0=\u00a0.052) between the first MAT and the overall outcome of the MFIQ was found. A significant moderate correlation of 0.401 (<jats:italic>P<\/jats:italic>\u00a0=\u00a0.042) was found between the retest of the MAT and the overall outcome of the MFIQ. One question on the MFIQ (about yawning) showed a moderate positive correlation of 0.569 (<jats:italic>P<\/jats:italic>\u00a0=\u00a0.002) and 0.416 (<jats:italic>P<\/jats:italic>\u00a0=\u00a0.034) for the MAT test and retest, respectively.<\/jats:p><\/jats:sec><jats:sec><jats:title>Conclusion<\/jats:title><jats:p>The MAT is an easy test to use in follow\u2010up of patients. The test\u2010retest reliability of this test is excellent in condylar trauma patients. As the validity of the MAT and the MFIQ could not be confirmed, the MFIQ may be an addition to patient's feedback about the rehabilitation process of their mandibular functioning.<\/jats:p><\/jats:sec>","DOI":"10.1111\/joor.12917","type":"journal-article","created":{"date-parts":[[2019,12,2]],"date-time":"2019-12-02T09:54:41Z","timestamp":1575280481000},"page":"460-466","update-policy":"https:\/\/doi.org\/10.1002\/crossmark_policy","source":"Crossref","is-referenced-by-count":7,"title":["Reproducibility and construct validity of the utrecht mixing ability Test to obtain masticatory performance outcome in patients with condylar mandibular fractures"],"prefix":"10.1111","volume":"47","author":[{"given":"Florine M.","family":"Weinberg","sequence":"first","affiliation":[{"name":"Department of Oral and Maxillofacial Surgery and Special Dental Care University Medical Center Utrecht Utrecht University Utrecht The 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