Principles and practice of operative dentistry . Round. Inverted cone. advantage is taken of the natural lines of cleavage of the enamel, as shownin Fig. 370, «, h. The overhanging edges of the enamel are thus rapidly Fig. Diagram illustrating cleavage of the enamel and lines upon which the margin should be cut prepara-tory to filling, a, chip thrown off by the chisel; h, position of the chisel in splitting off overhangingmargins ; c, c, correct lines upon which to cut the margins preparatory to filling; d, d, incorrect lines forthe preparation of the margins for filling ; /, cavity in t
Principles and practice of operative dentistry . Round. Inverted cone. advantage is taken of the natural lines of cleavage of the enamel, as shownin Fig. 370, «, h. The overhanging edges of the enamel are thus rapidly Fig. Diagram illustrating cleavage of the enamel and lines upon which the margin should be cut prepara-tory to filling, a, chip thrown off by the chisel; h, position of the chisel in splitting off overhangingmargins ; c, c, correct lines upon which to cut the margins preparatory to filling; d, d, incorrect lines forthe preparation of the margins for filling ; /, cavity in the dentin. (After Black.) and effectually cut away. The selection of the form and size of the chiselshould depend upon the size, location, and the accessibility of the cavity. Fig. 371.
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Keywords: ., bookcentury1900, bookdecade1920, booksubjectdentist, bookyear1920
