Fixed denture is fixed on the teeth of the denture, permanent, can not be taken at will to wear, the advantages of small size, similar to natural teeth, no obvious foreign body sensation, easy to adapt to, stability, support are very strong, chewing efficiency is high, will not have an impact on the pronunciation, more aesthetic. Fixed denture will be is to grind their own teeth, like wearing a hat on the abutment teeth, and natural teeth have no big difference. All-ceramic restoration is more beautiful, can restore the normal form, maximize the recovery of chewing function.