Jawbone usually refers to the bones located in the jaw part of the human face and skull, generally divided into maxilla, mandible and alveolar bone. 1. Maxilla: The maxilla is located in the middle of the face, one on the left side and one on the right side, symmetrical to each other. It is connected to the neighboring bones and participates in the formation of the orbital floor, the roof of the mouth, the floor and lateral walls of the nasal cavity, the infratemporal fossa, the pterygopalatine fossa, the pterygomaxillary fissure and the infraorbital fissure. 2. Mandible: The mandible is located in the chin and is the skeletal support of the jaw. The mandible is shaped like a horseshoe. The part with teeth in the center is called the body of the mandible, and the upward part on both sides is called the ascending mandible. The angle at which the ascending mandibular branch intersects the lower jaw. 3. Alveolar bone: The alveolar bone is the bone in the upper and lower jaws that surrounds and supports the roots of the teeth, and is closely connected to the bone through periodontal fibers, so that the teeth are confined to the alveolar sockets. Therefore, when symptoms such as inability to bite and chewing dysfunction occur, jawbone-related diseases should be considered, and it is recommended to go to the hospital in a timely manner and follow the doctor’s instructions for treatment.