. The Dental cosmos . of primary importance, viz, to approachthe walls from thick masses, to obtain acorrect line of force, and to step theplugger properly. The walls being approached from thickmasses of gold and the gold flowedagainst them and wedged by the lineof force and accurate stepping, the elasticdentin of the tooth is compressed andforever hugs the filling with a grip thatcannot be broken. When a cavity in 1212 THE DENTAL COSMOS. which a gold operation is to be madeis undercut, the cavity walls are weak-ened, and the manipulation of the gold Fig. is interfered with. Anyone who is
. The Dental cosmos . of primary importance, viz, to approachthe walls from thick masses, to obtain acorrect line of force, and to step theplugger properly. The walls being approached from thickmasses of gold and the gold flowedagainst them and wedged by the lineof force and accurate stepping, the elasticdentin of the tooth is compressed andforever hugs the filling with a grip thatcannot be broken. When a cavity in 1212 THE DENTAL COSMOS. which a gold operation is to be madeis undercut, the cavity walls are weak-ened, and the manipulation of the gold Fig. is interfered with. Anyone who is at allexpert with gold foil should be able tomake a foil operation in a cavity with Fig. 17.
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Keywords: ., bookcentury1900, bookdecade1910, booksubjectdentist, bookyear1912
