Fixed dentures are a method of fixed restoration after tooth loss or chipping, fixed dentures are bonded to the tooth surface by means of an adhesive, and there are two ways to remove them, both of which require a visit to the hospital’s dental department by a professional doctor. The first method is to apply a crown remover to remove the crown intact, this method is for teeth that are not particularly strong adhesion, can be removed without difficulty. But there are some porcelain teeth after wearing, the adhesive bonding is particularly strong, the application of the crown remover can not be removed, we should consider taking the second method. The second method is destructive, need to apply dental high-speed handpiece will porcelain teeth surface grinding, will porcelain teeth destructive take down, after taking down, the original porcelain teeth can no longer be applied.