The use of dental implants to achieve function, comfort, esthetics, speech, and health has helped overcome many of the limitations encountered with conventional fixed and removable prostheses.Dental implants have come a long way since its introduction into the realm of dentistry. Several implant abutment designs are constantly evolving to meet esthetic and functional requirements. This book aims to discuss different categories of implant abutments, the various designs, types,the method of selection,commercially available abutments and the implant screw mechanics.