Pre-prosthetic surgery is the process of preparing your mouth for the implantation of a prosthesis. To achieve the highest level of comfort, some patients need minor oral surgical operations prior to receiving a partial or complete denture. It is crucial that the bone is the right size and shape since a denture rests on the bone ridge. The underlying bone may be pointed and irregular if a tooth needs to be pulled. The bone may need to be smoothed or sculpted for a denture to fit comfortably. Before inserting a denture, extra bone may occasionally need to be removed.