As China’s population is aging, elderly patients with missing teeth are gradually becoming the main service targets of the Department of Prosthodontics. Missing teeth not only reduce the chewing function of the elderly, affecting the digestion and absorption of food, but also have a negative impact on the remaining teeth, easily causing the adjacent teeth to shift down and cause food embedding, and also seriously affect the aesthetic appearance of the face. Often older people have this misconception: wait for their teeth are lost and then to set full dentures. In fact, full dentures are not only uncomfortable, but also poor in restoring chewing function. Therefore, elderly patients should pay more attention to oral health, missing teeth as soon as possible to restore oral function in a timely manner. For senior citizens, it is more important to consider the “present” and to improve chewing ability and quality of life as the basic goal. There are many different methods of dental implants, which can be broadly classified into removable, fixed and implant dentures. The choice of which type of restoration to use should be determined by your own situation and after examination by your doctor. For many elderly patients with severe tooth loss, a removable denture is also an option for restoring missing teeth. A removable denture, also known as a movable denture or removable denture, can be removed and worn by the patient. Choose the movable denture restoration, has the advantages of short treatment, simple production, relatively inexpensive, etc., can allow you to restore chewing function and restore the appearance and pronunciation within a few weeks, the amount of tooth removal, less damage to avoid tooth displacement, but also as a transitional denture as a temporary restoration after the extraction of teeth. They can also be used as a transitional denture as a temporary restoration after an extraction. Active dentures better share the occlusal forces to protect the remaining teeth and train the patient to “handle” the denture to help the elderly adapt to the eventual full denture. Of course, removable dentures also have some shortcomings: they are larger, have a stronger sense of foreign body, and take longer to adapt; they are less aesthetically pleasing and less efficient than fixed dentures; they are less stable and may be easily swallowed by mistake when eating something sticky, causing injury. However, these problems can be avoided if the dentist’s instructions are followed, oral hygiene is well controlled, and regular denture maintenance is performed. After choosing a removable denture to repair missing teeth, daily oral health care and denture maintenance is very important to extend the service life of the denture and protect the health of the remaining teeth, specific notes include: 1, take off the removable teeth after meals to clean their own teeth and dentures, dentures are recommended to use a fine soft brush or gauze dipped in a cleaning solution without particles to rinse, do not boil water disinfection; 2, take off the dentures when sleeping, so that their teeth, dental bed and After taking off the dentures, put them in a cup of cold water to avoid deformation; 3. Use denture cleaning tablets regularly to disinfect the dentures and prolong their service life; 4. 1~2 times a year for oral examination and timely treatment when problems are found. Timely restoration of missing teeth in the elderly oral cavity is not only to help the elderly restore chewing function and improve the quality of life, but also to provide a basic guarantee for the elderly to spend their old age peacefully and prolong their lives.