Before and After pictures. Eight white bonded dental fillings. Six teeth crowns caps. Five root canals. Gum therapy. Teeth whitening. Total treatment time: Nine days. The words, crown and cap, mean the same thing; a dental crown and tooth crown also mean the same thing. A fixed dental bridge, prosthesis or bridgework, typically means more than one crown - and that they are connected together as one piece. The word fixed typically means permanently cemented and not removable by the patient. Some patients incorrectly refer to their removable denture as a bridge.