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      Cross-Cultural Validation of the Thai Oral Health Impact Profile for Temporomandibular Disorders

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          Abstract

          Objectives

          The Oral Health Impact Profile for Temporomandibular Disorders (OHIP-TMDs) is a validated condition-specific outcome measure to help guide decision-making in the management of the condition. There is no Thai version of OHIP-TMDs, and therefore the original English version needs cross-cultural adaptation translation, and validation with a Thai population to reduce the anomalies due to language and cultural differences. This study aimed to develop the Thai-language version of OHIP-TMDs, perform a cross-cultural adaptation to Thailand, and assess its content validity, internal consistency, reliability, and construct validity.

          Methods

          The original English version of OHIP-TMDs was forward and backward translated into Thai language using the International Network for Orofacial Pain and Related Disorders methodology (INfORM) protocol for cross-cultural adaptation. The Content Validity Index (CVI) was performed by 5 orofacial pain (OFP) specialists to establish content validity. The OHIP-TMDs-T was then tested in 2 groups of Thai dental patients including 110 TMD patients and 110 control participants. The internal reliability and test-retest reliability (n = 30) were investigated in the TMD group using Cronbach alpha coefficient and intraclass correlation coefficient (2-way mixed effect model), respectively. The difference in OHIP-TMDs-T score between the TMD group and control group was investigated for known group validity.

          Results

          Cronbach alpha and intraclass correlation coefficients were 0.942 and 0.797, respectively. The CVI collected from the OFP specialists was 0.92. There was a statistical difference in the OHIP-TMDs-T overall score between the TMD group (95% CI, 40–46) and control group (95% CI, 2.0–3.4) ( Z = 9.060, r = 1, P < .001).

          Conclusions

          The OHIP-TMDs-T is a valid and reliable tool for evaluating the quality of life and the impact on oral health in Thai patients with TMD.

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          Most cited references44

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          A Guideline of Selecting and Reporting Intraclass Correlation Coefficients for Reliability Research.

          Intraclass correlation coefficient (ICC) is a widely used reliability index in test-retest, intrarater, and interrater reliability analyses. This article introduces the basic concept of ICC in the content of reliability analysis.
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            Statistical power analyses using G*Power 3.1: tests for correlation and regression analyses.

            G*Power is a free power analysis program for a variety of statistical tests. We present extensions and improvements of the version introduced by Faul, Erdfelder, Lang, and Buchner (2007) in the domain of correlation and regression analyses. In the new version, we have added procedures to analyze the power of tests based on (1) single-sample tetrachoric correlations, (2) comparisons of dependent correlations, (3) bivariate linear regression, (4) multiple linear regression based on the random predictor model, (5) logistic regression, and (6) Poisson regression. We describe these new features and provide a brief introduction to their scope and handling.
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              Guidelines for the Process of Cross-Cultural Adaptation of Self-Report Measures

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                Author and article information

                Contributors
                Journal
                Int Dent J
                Int Dent J
                International Dental Journal
                Elsevier
                0020-6539
                1875-595X
                16 February 2024
                August 2024
                16 February 2024
                : 74
                : 4
                : 777-783
                Affiliations
                [a ]Department of Occlusion, Faculty of Dentistry, Chulalongkorn University, Bangkok, Thailand
                [b ]School of Dental Sciences, Newcastle University, Newcastle, UK
                [c ]Avatar Biotechnologies for Oral Health and Healthy Longevity Research Unit, Faculty of Dentistry, Chulalongkorn University, Bangkok, Thailand
                [d ]Newcastle Hospitals' NHS Foundation Trust, Newcastle, UK
                Author notes
                [* ] Corresponding author. Department of Occlusion, Faculty of Dentistry, Chulalongkorn University, 34 Henri-Dunant Road, Wongmai, Patumwan, Bangkok, 10330, Thailand. chayanit.c@ 123456chula.ac.th
                Article
                S0020-6539(24)00034-0
                10.1016/j.identj.2024.01.010
                11287184
                38368238
                021535ff-2195-4936-84a6-ace30b8ab4e1
                © 2024 The Authors

                This is an open access article under the CC BY-NC-ND license (http://creativecommons.org/licenses/by-nc-nd/4.0/).

                History
                Categories
                Scientific Research Report

                oral health–related quality of life,orofacial pain,facial pain,temporomandibular joint disorders,ohip-tmds

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