It has been reported that excessive use of smartphones increases the stress on the cervical spine, and changes in cervical curvature and pain in the muscles around the neck are associated with the increase in stress. Studies have reported that smartphone users with addictions have neck pain (68%), upper back pain (62%), right shoulder pain (52%), left shoulder pain (46%), and right hand pain (46%). As a result of our study, the frequency of smartphone addiction and temporomandibular joint dysfunction and related factors in individuals with nonspecific neck pain were examined and the results we obtained will contribute to the literature.

Inclusion Criteria:

• Presence of neck pain lasting at least 6 months
• Being between the ages of 18-45
• Individuals with a score between 10-40 points according to the Neck Disability Index
• Individuals who have never had a history of shoulder or neck surgery

Exclusion Criteria:

• Individuals with signs of radicular pain (positive neck distraction test, Spurling's neck compression test, and Adson's test)
• Individuals who get less than 10 points or more than 40 points according to the Neck Disability Index
• Those with a previous history of shoulder and neck surgery
• Individuals with accompanying shoulder pain
• Individuals with spinal cord tumors
• Individuals with meningeal tumors
• Individuals who do not want to participate in the study

Individuals with nonspecific neck pain, individuals who voluntarily agreed to participate in our study and signed the consent form