Symptoms of temporomandibular joint or TMJ disorders include ear and jaw pain, soreness in jaw muscles, lockjaw and neck pain, explains the American Academy of Otolaryngology-Head and Neck Surgery. Individuals suffering from TMJ disorders may also suffer from headaches and have trouble opening the mouth.
Additional symptoms of TMJ disorders include clicking or grating of the jaw upon opening the mouth, misalignment of the upper and lower teeth, and stiffened jaw muscles, states the National Institute of Dental and Craniofacial Research. In certain cases, injury of the jaw joint can cause TMJ disorders, however, in many cases symptoms of the condition appear without an underlying cause. Treatments for TMJ disorders may include ice applications, over-the-counter anti-inflammatory medications, stress-reduction techniques, stretching exercises, bite guards and Botox injections.