A denture is a removable appliance to replace one more missing teeth. There are two broad categories of dentures: Partial denture and complete denture. As the name suggests, Complete dentures replace all the missing teeth whereas partial dentures replace one or more missing teeth with some teeth still remaining in the oral cavity.
For many years, partial dentures have been used to replace groups of teeth or a few teeth scattered across upper or lower jaw. There are a variety of partial dentures available depending upon requirements of individual patient. All partial dentures attach to remaining teeth and have a gum-colored portion meant to blend into the existing gum, with prosthetic teeth to replace missing teeth.
Complete dentures are similar to partial dentures in fabrication and appearance. The only difference is that complete dentures replace full set of teeth whereas partial dentures replace only a few teeth.
Types of crowns vary depending upon the material used in their fabrication.