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Fig. 328. Tlic direct-stroke quadrangle pluggcr as shown in use by photography, including the
mailtt as used by an assistant. The instrument is shown in the act of condensing the gingival portion
of a filling that has been placed in the mesial surface vi a central incisor. The curves of the shank
enable one to obtain a direct stroke on the gingival portion of the filling while the separator is in
place. It is used only for after-condensation.
Fig. 329. Photographs of the points and shanks of the direct quadrangle pluggers, rights and
lefts, end view and side view.