Page 31 - My FlipBook

All frail enamel should be removed and the walls should run at
right angles to the curves of the segments of the circles formed on the
surfaces (Fig. 9, A and B). This permits the walls to converge slightly

Fig. 8.

Fig. 9.

toward the pulpal wall (Figs. 10 and 11). This method of preparation
gives a short bevel to the porcelain, which adds strength and causes
it to be afifected less by change of color along the margins after the inlay
has been cemented into the cavity. These cavities should be as deep

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