Examining the effects of smartphone overuse on neck and jaw function in teens

Correlation Between Smart Phone Overuse, Craniovertebral Angle, Cervical Muscle Endurance and Temporomandibular Proprioception in Adolescents

Observational Cairo University · NCT06861751

This study looks at how too much smartphone use affects neck and jaw function in healthy teens aged 17 to 19.

Quick facts

Study typeObservational
Enrollment160 (estimated)
Ages17 Years to 19 Years
SexAll
SponsorCairo University Academic / other
Locations1 site (Al Mansurah)
Trial IDNCT06861751 on ClinicalTrials.gov

What this trial studies

This observational study investigates the relationships between smartphone overuse and various physical factors in adolescents, specifically focusing on craniovertebral angle, cervical muscle endurance, and temporomandibular joint proprioception. By analyzing these correlations, the study aims to provide insights that can help physiotherapists identify and address issues arising from excessive smartphone use. Participants will include healthy adolescents aged 17 to 19 who have used smartphones daily for at least four years, ensuring a focused examination of the impacts of prolonged smartphone engagement.

Who should consider this trial

Good fit: Ideal candidates for this study are healthy adolescents aged 17 to 19 who have been using smartphones daily for at least four years.

Not a fit: Patients with existing neck or upper extremity injuries, congenital spinal deformities, or those who are athletes may not benefit from this study.

Why it matters

Potential benefit: If successful, this study could lead to improved understanding and management of physical issues related to smartphone overuse in adolescents.

How similar studies have performed: While there is limited research specifically correlating smartphone overuse with these physical factors, studies on related topics have shown varying degrees of success, indicating a need for further exploration in this area.

Eligibility criteria

Show full inclusion / exclusion criteria
Inclusion Criteria:

1. Both genders will be included.
2. Adolescents with age ranging from 17 to 19 years.
3. Adolescents using smart phone daily for not less than 4 years for 4 years.
4. All participants will be free from any medical disease, visual or hearing problem.
5. No history of temporomandibular joint complaints or disorder.

Exclusion Criteria:

1. Adolescent who cannot understand or follow instructions.
2. Congenital or acquired spinal deformities.
3. Adolescents with obesity.
4. Athlete adolescents.
5. Any neck or upper extremity Injury.
6. Neurological, musculoskeletal, and cardiopulmonary disease.
7. Adolescent with teeth braces during last 4 years

Where this trial is running

Al Mansurah

Study contacts

How to participate

  1. Review the eligibility criteria above with your treating physician.
  2. Visit the official trial page on ClinicalTrials.gov for the most current contact information and recruitment status.
  3. Contact the listed study coordinator or principal investigator to request pre-screening. Pre-screening is free and never obligates you to enroll.
Conditions Smart Phone AddictionCraniovertebral AngleTemporomandibular ProprioceptionAdolescents
Last reviewed 2026-06-13 by the Find a Trial editorial team. Information on this page is for educational purposes and is not medical advice. Always consult qualified healthcare professionals about clinical trial participation.