filling – term commonly used to describe a material such as metal, resin, or porcelain used to restore lost or damaged tooth structure fistula – a boil in the gums, infected with pus fixed denture/prosthesis – prosthetic which is attached to adjacent teeth or dental implants to be non-removable by the patient flap surgery – surgical lifting of the gum tissue in order to expose and clean tooth and bone structures beneath forceps – tool that may be used in the removal of teeth fracture – crack or break in bone or tooth structure frenectomy – surgical reshaping or removal of small amount of muscle tissue attaching lips to gums or tongue to mouth floor, generally done to improve function frenum – thin muscle tissue that attaches cheek, lip, and/or tongue within the mouth