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tliese materials, we feel that we are justified in considering the inlay
principle of filling cavities in bicuspids and molars.
It is essential that teeth with approximo-occlusal cavities be
wedged, in order that the gum in the inter-i)roximal space may he
protected; that the margins of the filling may be more easily cle.inscd;
that the tooth when filled may be given its natural conti^ur and that

Fig. 58. Fig. 59.

the matrix or impression may not be distorted upon removal from the
cavity. Too many dentists lose sight of the advantages of wedging
the bicuspids and molars before filling cavities in these teeth. It is
just as important to wedge these teeth before filling as it is to wedge
incisors and cuspids. If more attention were paid to this step of the
operation, there would be fewer cases of recurrence of decay at the
margins of fillings.
In case the patient has reached the period of
immunity, and there are no fissures extending from
Hpproximo-Occlusal
Cavities. the cavity, mesio-occlusal cavities in bicuspids and
first molars, without a step may be filled with porce-
lain. The axial margins should be extended far enough so that they will
not come in contact with the approximating tooth.

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