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Cross Cultural Adaptation, Reliability &Validity of The Arabic Version of 8_Item Jaw Functional Limitation Scale In Temporomandibular Joint Disorders

NCT07449221 · Status: NOT_YET_RECRUITING · Type: OBSERVATIONAL · Enrollment: 100

Last updated 2026-03-04

No results posted yet for this study

Summary

The purpose of this study is to test if the translated Arabic version of the (jaw functional limitation scale -8) JFLS\_8 , valid (face, content, feasibility) ,reliable (internal consistency, test retest) and culturally adapted enough to quantify the impact of temporomandibular joint (TMJ) disorders on jow function in arabic people or not?

Conditions

  • Temporomandibular Joint Disorders

Interventions

OTHER

Questionnaire Administration

Participants complete the Arabic version of the 8-item Jaw Functional Limitation Scale (JFLS-8), along with reference measures (Visual Analogue Scale and Fonseca Anamnestic Index), to evaluate validity, reliability, feasibility, and cultural adaptation of the questionnaire. A subset of participants completes the JFLS-8 again after 2 days to assess test-retest reliability.

Sponsors & Collaborators

  • Cairo University

    lead OTHER

Principal Investigators

  • Salwa Fadl Abdel Mageed, PhD · Professor, Cairo University

  • Dina Sayed Abd Allah, PhD · Lecturer, Cairo University

  • Eman Sayed Ahmed Shalaby, PhD · Lecturer, Cairo University

Eligibility

Min Age
18 Years
Max Age
65 Years
Sex
ALL
Healthy Volunteers
No

Timeline & Regulatory

Start
2026-03-07
Primary Completion
2026-05-07
Completion
2026-05-15

Countries

  • Egypt

Study Locations

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Read the full study record

This page highlights key information. For complete eligibility criteria, study locations, investigator contacts, and the full protocol, visit the original record on ClinicalTrials.gov.

View NCT07449221 on ClinicalTrials.gov