The best time for fixed denture restoration is usually after 3 months in clinical practice. Many patients do not understand why they have to wait for three months, because they are psychologically anxious to come to the veneer after the tooth extraction when they cannot eat. As the saying goes, it takes a hundred days to break the bone. The extraction surgery is performed by pulling out the tooth root from the alveolar bone, and the alveolar bone will form a relatively large extraction wound, which will take some time to heal. The bone healing time is usually around three months, so the time for fixed denture restoration should not be less than three months. If the healing time is prolonged due to certain conditions, such as diabetes or other diseases, and the wound healing time is prolonged, it is not necessary to be strictly stuck for three months, but it can be slightly longer. However, it is important to wait until the extraction wound in the alveolar bone is completely healed before the fixed denture can be restored. Some patients think that the longer they wait, the better the restoration will be, but this is not true either. If the tooth is missing for more than six months or even a year, the adjacent teeth on both sides of the extraction wound will be tilted toward the extraction area, i.e., the extraction area will form a small mouth and large bottom, once this form is formed, it is easy to have food embedding after the denture repair, so the time should not be too long. In addition, too long a period of time will also cause the opposite jaw teeth to elongate towards the missing tooth area, forming occlusal interference, which will easily cause temporomandibular joint disease and occlusal disorder to the patient. Therefore, patients should usually go to the hospital for an examination to determine the timing of the veneers in about three months.