Generally missing teeth can have a partial effect on the shape of the face, especially when there are more missing teeth, causing the face to collapse and the corners of the mouth to droop, resulting in a more aged appearance for the patient. When teeth are missing, the chewing function of the area is lost or the patient does not want to chew on this side of the missing tooth. Because its chewing efficiency is lower and the part with more complete teeth is chosen for long-term chewing on the lateral side, it will cause the mucosa and muscles of the cheek on the side that is often used to become more developed and fat, while the side with missing teeth is prone to facial atrophy, so missing teeth will affect the facial appearance. After tooth loss, patients should be treated in time to restore not only the chewing function of the part, but also the shape and beauty of the part. Especially when there are a lot of missing teeth, it can cause resorption of the alveolar ridge, which can lead to a very old face. When teeth are missing, they do not form a normal chewing function and can lead to leakage of speech, so it is important to have them restored in a timely manner.