the metal framework that is placed beneath the soft tissues in contact with, or embedded into, bone for the purpose of supporting an implant denture superstructure.
im·plant den·ture sub·struc·ture
(implant denchŭr sŭbstrŭk-shŭr) Metal framework that is placed beneath the soft tissues in contact with, or embedded into, bone for the purpose of supporting an implant denture superstructure.