| 释义 |
DictionarySeedirectdirect retainer
di·rect re·tain·era clasp or attachment applied to an abutment tooth for the purpose of maintaining a removable appliance in position.di·rect re·tain·er (di-rekt rĕ-tānĕr) Clasp or attachment applied to an abutment tooth to keep a removable appliance in position. LegalSeeDirect |