It is an artificial denture who desires to have replacement of one or more teeth for functional and aesthetic reasons who cannot have a bridge for any reason such as lack of required teeth to serve as support for a bridge or financial limitations.
FPD is a dental restoration used to replace missing natural tooth & that is permanently attached to adjacent teeth with the help of bridge.
A CD is a removable or fixed appliances used when all teeth with in a jaw have been lost & need to be prosthetically replaced (false teeth). It is done when there are no more teeth left in an arch.