Additional Effect of Forward Head Posture Correction on Temporomandibular Dysfunction

The goal of this clinical trial is to test the additional correction effect of nerd neck on damaged jaw in people who suffers from jaw problems and nerd neck at the same time. The main question it aims to answer: • whether the additional correction of nerd neck impact the jaw features of pain and function. Participants will: * participants will be given the consent to sign first. * participants will be assessed to check jaw pain and function. * participants will be divided randomly into 2 groups. * Each group will be given the treatment sessions for 6 weeks. * participants will come back after 6 weeks for another last assessment. Researchers will compare regular treatment for Jaw with new device, regular only and dental treatment groups to see if there is improvement in jaw characteristics.