Trismus: Spasmodic contraction of the masseter muscle resulting in forceful jaw closure. This may be seen with a variety of diseases, including TETANUS, as a complication of radiation therapy, trauma, or in association with neoplastic conditions.Molar, Third: The aftermost permanent tooth on each side in the maxilla and mandible.Tooth Extraction: The surgical removal of a tooth. (Dorland, 28th ed)Tooth, Impacted: A tooth that is prevented from erupting by a physical barrier, usually other teeth. Impaction may also result from orientation of the tooth in an other than vertical position in the periodontal structures.Peritonsillar Abscess: An accumulation of purulent material in the area between the PALATINE TONSIL and its capsule.Myofunctional Therapy: Training or retraining of the buccal, facial, labial, and lingual musculature in toothless conditions; DEGLUTITION DISORDERS; TEMPOROMANDIBULAR JOINT DISORDERS; MALOCCLUSION; and ARTICULATION DISORDERS.Dry Socket: A condition sometimes occurring after tooth extraction, particularly after traumatic extraction, resulting in a dry appearance of the exposed bone in the socket, due to disintegration or loss of the blood clot. It is basically a focal osteomyelitis without suppuration and is accompanied by severe pain (alveolalgia) and foul odor. (Dorland, 28th ed)Piroxicam: A cyclooxygenase inhibiting, non-steroidal anti-inflammatory agent (NSAID) that is well established in treating rheumatoid arthritis and osteoarthritis and used for musculoskeletal disorders, dysmenorrhea, and postoperative pain. Its long half-life enables it to be administered once daily.AxisCervical Atlas: The first cervical vertebra.Mandible: The largest and strongest bone of the FACE constituting the lower jaw. It supports the lower teeth.Tetanus: A disease caused by tetanospasmin, a powerful protein toxin produced by CLOSTRIDIUM TETANI. Tetanus usually occurs after an acute injury, such as a puncture wound or laceration. Generalized tetanus, the most common form, is characterized by tetanic muscular contractions and hyperreflexia. Localized tetanus presents itself as a mild condition with manifestations restricted to muscles near the wound. It may progress to the generalized form.