Is Traumatic Stress Per Se a Cause of Hypercementosis**From the Department of Oral Histology and Embryology, Columbia University and the Department of Oral Surgery, Midtown Hospital.*Read before the Section on Histology, Physiology, Pathology, Bacteriology and Chemistry (Research) at the Seventy-Fourth Annual Session of the American Dental Association, Buffalo, N. Y., Sept. 14, 1932.

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