Page 137 - My FlipBook

V

FiQ. 54.

Fjfl. 55.

Fig. 54. A flat form which ran a very rapid course, complicated with erosion of the proximal sur-
faces. The small fig-ure on the right is a labio-lingual section, intended to give more definite informa-
tion as to the loss of substance. The incisors were destroyed within five years after the erosion was
first seen. From a man of wealth about sixty years of age.
Fig. 55. .\ flat fonn complicated by erosion of the proximal surfaces, which are also flat. No
erosion of the lower teeth or any of the bicuspids or molars. The upper incisors had overlapped the
lower nomially before the erosion shortened the teeth. This case presented extreme sensitiveness of the
eroded areas. \ man twenty-eight years of age, a bookkeeper.