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

Starting soon

Conditions studied: Temporomandibular Joint Disorders

In brief

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?

Key facts

Study ID

NCT07449221

Run by

Cairo University

People needed

100

Starts

2026-03-07

Expected to finish

2026-05-15

Last updated by the study team

2026-03-04

Who can join

Age: 18 and older, up to 65. Sex: any. Healthy volunteers: not accepted.

You may qualify if…

• Patients aged 18 to 65 years .
• Diagnosis of temporomandibular disorders ) jaw pain-popping sounds in the jaw -limited jaw movements - orofacial pain ) for one month at least, not receiving actual treatment for the orofacial region (splinting)
• Being conscious and oriented.
• Able to read and write in Arabic.
• Both Genders were included.

You may not qualify if…

• History of trauma (recent head or neck or TMJ severe trauma)
• Recent surgery at the neck, head or TMJ
• Diagnosed systemic and psychiatric diseases; diseases that may affect the TMJ, such as ankylosing spondylitis or rheumatoid arthritis; and pregnancy

Where it is running

• El-Kasr Elainy jaw and dental clinics — Giza, Egypt

Full record on ClinicalTrials.gov

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