? Today, three or four netizens have been consulting this question one after another. In response to this question, Dr. Weng, an oral expert in Dongguan Stomatology, gave the following answer: First, explain this "adult tooth replacement". The netizens who raised this question have more than one tooth decay, and it is a serious tooth decay. The pain is unbearable, and they want to pull out the decayed tooth and make it into porcelain teeth. Tooth decay usually hurts to a certain extent and hurts the pulp. In this case, filling teeth can no longer solve the problem, but it is uncertain whether tooth extraction is needed. Then, under what circumstances should the tooth be extracted and under what circumstances should it not be extracted? No need for tooth extraction: the area of dental caries is relatively small enough to be prepared as abutment. In this case, the best restoration method is to make porcelain teeth. Just prepare the remaining teeth into abutment teeth and then install the designed porcelain teeth. Need to do tooth extraction treatment: the area of tooth decay is very large, and the residual roots can no longer be preserved. In this case, after the residual roots are removed, the adjacent teeth on both sides can be used as abutment teeth to connect the three porcelain teeth. This method needs to damage two adjacent teeth, which is not the best method. The best restoration method is dental implant, and only one dental implant is needed. Dental implants will not cause damage to other teeth, and their service life is longer than that of porcelain teeth, but the cost is more expensive than that of porcelain teeth.