问答题Master apical file The largest file that perform apical enlargement.

问答题DMF(S) indexDMF(S) to denote decayed, missing, and filled surfaces in permanent teeth.

问答题Rubber damThe rubber dam is a thin sheet of rubber which, when placed over a single tooth or a group of teeth, excludes saliva from the field of operation.

问答题Resistance formResistance form is the cavity form to prevent the remaining tooth and filling substasnce form fractured during mastication.

问答题Dentine hypersensitivityA form of hypersensitivity caused by the effects of thermal, electric and stimuli on the exposed dentine.