Only after 3 months after tooth extraction can set teeth, because the alveolar bone alteration is very active within 3 months after tooth extraction, when the alveolar bone is in an unstable situation, it has been made to model set teeth, teeth in the future use of the process and the condition of the mouth does not match, resulting in the teeth do not fit. If the elderly tooth root is relatively short, in the extraction process has no obvious tissue damage, you can shorten the time after the extraction of dental veneers, can be 1-2 months after the extraction of teeth set movable denture repair. If you want to carry out fixed denture or implant denture restoration, because these two restorations on the teeth of the precision requirements are very high, must wait until 3 months after the extraction of teeth, alveolar bone and alveolar mucosa has been very stable time before veneering, if premature veneering will lead to the denture and alveolar ridge gap between the teeth, appearing unattractive, but also prone to the existence of food deposits.