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Fia. 49.

Fig. 48. A case of erosion occurring in the teeth of a woman twenty-eight years of age. These
are dish-shaped areas, with projections toward the incisal edge, which are plainly seen in the lower
central incisors. Otherwise it is a case of typical dish-shaped areas. A picture by myself from the
same cast was published in the "American System of Dentistry."
Fig. 49. The dish-shaped areas complicated with recession of the gum. with projections extending
from the dish-shaped areas toward the incisal edges, in the upper teeth. These extensions have a very
characteristic squareness of their angles. Patient, a man forty years of age.