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138 MECFTANICAL DENTISTRY AND METALLURGY.
cuspid or incisor teeth were interlocked, was what is known
as the inchned plane. This is formed of metal, by first
Fig. 93.
Fk;. 94.
Inclini:u Plane.
striking up a saddle to cover two or more of the lower in-
cisors. To this, at the desired point, is soldered an inclined
Fig. 95.
piece of heavy metal so directed that when the appliance is
cemented in position, the inlocked tooth will strike upon it
