Jaw disease refers to a variety of conditions that affect the jawbone and surrounding structures, including the teeth, gums, and muscles. Common types include temporomandibular joint disorder (TMJ), which causes pain and dysfunction in the jaw joint, and periodontal disease, which affects the gums and supporting structures of the teeth. Symptoms may include pain, swelling, difficulty chewing, and changes in bite alignment. Treatment for jaw disease often involves a combination of dental care, physical therapy, and sometimes surgery. Maintaining good oral hygiene and regular visits to a dentist can help prevent conditions like periodontal disease. In some cases, a dentist may recommend a mouthguard to alleviate symptoms associated with TMJ.