In dentistry, an<unk> is a connecting element. This is used in the context of a fixed bridge (the<unk> teeth" referring to the teeth supporting the bridge), partial removable dentures (the<unk> teeth" referring to the teeth supporting the partial) and in implants (used to attach a crown, bridge, or removable denture to the dental implant fixture). The implant fixture is the screw-like component that is osseointegrated.
Abutment 
Disarticulation
Degloving
Effacement 
Fixation 
Jactitation 
Fragmentation 
Seclusion