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Fig. 185. The deciduous teeth and the permanent first molar of the right side of the upper jaw.
Fig. 186. The same as Figure 185 after treatment of caries by cutting a V-shaped opening to
the lingual for the removal, in part, of proximal decay and treatment with silver nitrate. This illus-
tration includes the treatment of the distal surface of the second deciduous molar. Incidentally this
frees the broad mesial surface of the permanent first molar from a broad area of near approach to the
second deciduous molar.