The health of the teeth is related to the health of the body, and when there are problems with the teeth, it is recommended to go to the dental clinic for timely treatment. Dentistry mainly includes two kinds of dentistry: internal dentistry and restorative dentistry. 1.Dental medicine: It can treat toothache and fill the hole caused by tooth decay. These are also the more common diseases in the dental clinic at present. Generally these problems can be well solved in dentistry. It can also clean the calculus and plaque on the surface of teeth; for periodontal diseases such as tooth inflammation, loose teeth, teeth bleeding frequently and tooth atrophy, it is also recommended to go to dental endodontics for consultation and treatment. It can treat the vesicles, hard knots and plaques on the mucous membrane of the inner wall of the mouth as well as mouth ulcers. 2.Prosthodontics: This department is mainly for repairing, veneering or implanting the defective teeth. The dental department mainly includes the Department of Oral Medicine and the Department of Prosthodontics, which is collectively known as the Department of Oral Medicine in some higher level hospitals, and includes the Department of Oral Prevention, the Department of Geriatric Dentistry, the Department of Pediatric Dentistry, the Department of Orthodontics, the Department of Prosthodontics, the Department of Oral Medicine, and the Department of Oral and Maxillofacial Surgery. It is recommended to choose according to the hospital of choice. Usually some small hospitals do not have dentistry, and those with relatively high hospital level are usually divided into oral medicine. In short, dentistry can treat toothache, clean teeth, and repair the broken teeth, etc.