An observational study in Text Neck Syndrome, Temporomandibular Joint Disorders and Postural Balance, sponsored by Borna Farhoomand. Not yet recruiting. Open to participants aged 18 Months to 30 Years. Per ClinicalTrials.gov, last updated 2026-10-01.
Sponsored by Borna Farhoomand · Observational
The aim of this cross-sectional study is to compare temporomandibular joint (TMJ) and cervical spine parameters between young university students aged 18-30 years with and without text neck syndrome, a modern overuse condition caused by prolonged digital device use and repetitive forward head flexion. Given the anatomical, biomechanical, and functional connections between the stomatognathic system and the cervical region, prolonged altered posture may contribute to TMJ dysfunction, pain, and altered physical metrics. Participants are categorized into two groups based on photographic and self-reported text neck severity (levels 3-4 for text neck vs. levels 1-2 for non-text neck) and evaluated across multiple physical parameters, including craniovertebral and cervicothoracic angles, active cervical and mandibular range of motion, cervical joint position sense, neck and TMJ pain intensity via Visual Analog Scale, TMJ dysfunction severity using the Turkish-validated Fonseca Questionnaire, static balance via the single-leg stance test, and dynamic balance via the Y Balance Test.
609 studies on the registry are indexed under Temporomandibular Joint Disorders; 160 are open to participants now.
This study's planned enrollment of 80 is below the median of 90 across 165 observational studies indexed under Temporomandibular Joint Disorders.
Browse Temporomandibular Joint Disorders studies →Borna Farhoomand is the lead sponsor of 5 studies on the registry; 5 are open to participants now.
Counted across the registry records on this site, refreshed daily.
The study population consists of young adult university students aged 18 to 30 years recruited from a university campus environment. Participants will be sampled from healthy undergraduate and graduate students who routinely use digital devices (such as smartphones and tablets) in their daily academic and personal activities.
Exclusion Criteria:
Cervical Posture Angles
Time frame: Baseline (at a single assessment point)
Cervical and Temporomandibular Joint Pain Intensity
Description: Will be evaluated using a 10-cm Visual Analog Scale (VAS; 0 = no pain, 10 = worst imaginable pain) for neck pain and TMJ pain (at rest, during activity, and while chewing).
Time frame: Baseline (at a single assessment point).
Cervical Range of Motion (CROM)
Description: Will be evaluated in degrees for active cervical flexion, extension, bilateral lateral flexion, and bilateral rotation using the CROM (Cervical Range of Motion) device.
Time frame: Baseline (at a single assessment point).
Mandibular Range of Motion
Description: Will be measured in millimeters (mm) using a digital caliper and ruler for maximum mouth opening, right/left lateral movements, and protrusion.
Time frame: Baseline (at a single assessment point).
Text Neck Posture Classification
Text neck posture will be assessed using both self-reported perception and standardized photographic analysis.
Time frame: Baseline (at a single assessment point).
Temporomandibular Joint Dysfunction Severity
Description: Will be evaluated using the Turkish-validated Fonseca Questionnaire (10 items, total score 0-100; higher scores indicate greater TMD severity).
Time frame: Baseline.
Cervical Joint Position Sense (JPS)
Description: Will be evaluated in degrees using the CROM device across flexion-extension, lateral flexion, and rotation planes to measure absolute error from a target angle
Time frame: Baseline
Static Balance
Description: Will be measured in seconds with eyes open and eyes closed on a firm surface.
Time frame: Baseline.
Dynamic Balance Assessment using the Y Balance Test
Time frame: Baseline
No study locations are listed for this record.
From the registry record's own update history. This site started tracking changes on Sep 25, 2026; for anything earlier, see the record history on ClinicalTrials.gov ↗
This study is not yet recruiting, as verified in Sep 2026. You cannot join it, but the record below documents what was studied.
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Temporomandibular Joint Disorders→
Borna Farhoomand