Principles and practice of operative dentistry . Fig. 23.—Inferior right lateral incisor, mesial surface.(Enlarged.) Fig. 24.—Inferior right lateral inciapr, distal surface.(Enlarged.) CLASSIFICATION AND DESCRIPTIVE ANATOMY OF THE TEETH. 9 margins are rounded off at the expense of the labial surface. The mesialangle is quite acute, and the distal angle slightly obtuse and rounded. The lingual surface (Fig. 18) is concave from the mesial edge to the cervix,but is nearly flat, or only slightly concave mesio-distally. The marginalridges are not strongly marked. The mesial and distal surfaces (Fig


Principles and practice of operative dentistry . Fig. 23.—Inferior right lateral incisor, mesial surface.(Enlarged.) Fig. 24.—Inferior right lateral inciapr, distal surface.(Enlarged.) CLASSIFICATION AND DESCRIPTIVE ANATOMY OF THE TEETH. 9 margins are rounded off at the expense of the labial surface. The mesialangle is quite acute, and the distal angle slightly obtuse and rounded. The lingual surface (Fig. 18) is concave from the mesial edge to the cervix,but is nearly flat, or only slightly concave mesio-distally. The marginalridges are not strongly marked. The mesial and distal surfaces (Figs. 19 and 20) are V-shaped in outline,with the apex directed towards the morsal edge of the crown. They areconvex near the edge, but become flattened and even slightly concave atthe cervix. The cervix is flattened mesio-distally, the greatest diameter being thelabio-lingual. Section at this point gives the form of a compressed oval. The root is flattened like the cervix, for its entire length. The apexsometimes has a distal curve. The groov


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Keywords: ., bookcentury1900, bookdecade1900, booksubjectdentist, bookyear1901