Medical Definition of abutment
: a tooth or part of a dental implant to which a prosthetic appliance (such as a bridge or artificial crown) is attached for support <A dental bridge, like a highway bridge … is supported by abutments, sound teeth on either side of the empty gap.—Mount Sinai Medical Center Family Guide to Dental Health, 1991> <Once the healing period is over, the gum is cut open again and a little metal cylinder called an abutment is put in the implant. It takes another few days for the gum to heal before the crown is put on …—Harvard Health Letter, 2003>
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