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CONDENSING INSTRUMENTS 71
M
Fig. 88.—Serrated nibs, parallelogram form, Black pluggers.
ing the surface of fillings, when they
are known as engine burnishers.
(c) Spatula.—An instrument with a
flat, unsharpened blade, made in vari-
ous sizes, for mixing cement and for
introducing and smoothing the surface
of cement fillings. A spatula is made
of steel, stellite, bone, tantalum or other
material (Fig. 95).
(d) Mallet.—Hand and Mechanical.
The hand mallet is made of wood, lead,
steel and other materials, in various sizes
and weights. It is utilized for mallet-
ing gold and amalgam fillings, driving
wedges in separating teeth and in de-
livering blows for other purposes, as in
chiselling enamel. The mechanical
mallet, designed for plugging gold, is
of four varieties, viz.
(i) The Automatic (the most popu-
lar), in which the blow is delivered to
the plugger by the releasing of an ac-
tuating spring concealed in its shaft
Fig. 89.—Foot pluggers.
(Fig. 96)
Black set.
CONDENSING INSTRUMENTS 71
M
Fig. 88.—Serrated nibs, parallelogram form, Black pluggers.
ing the surface of fillings, when they
are known as engine burnishers.
(c) Spatula.—An instrument with a
flat, unsharpened blade, made in vari-
ous sizes, for mixing cement and for
introducing and smoothing the surface
of cement fillings. A spatula is made
of steel, stellite, bone, tantalum or other
material (Fig. 95).
(d) Mallet.—Hand and Mechanical.
The hand mallet is made of wood, lead,
steel and other materials, in various sizes
and weights. It is utilized for mallet-
ing gold and amalgam fillings, driving
wedges in separating teeth and in de-
livering blows for other purposes, as in
chiselling enamel. The mechanical
mallet, designed for plugging gold, is
of four varieties, viz.
(i) The Automatic (the most popu-
lar), in which the blow is delivered to
the plugger by the releasing of an ac-
tuating spring concealed in its shaft
Fig. 89.—Foot pluggers.
(Fig. 96)
Black set.
