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J Dent Res 16(5): 443-452, 1937
© 1937 International and American Associations for Dental Research
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A HISTOPATHOLOGIC AND RADIOGRAPHIC STUDY OF THE TEETH OF DOGS FED A RACHITOGENIC DIET

S. N. BLACKBERG PH.D.1, J. D. BERKE D.D.S.1, and A. P. Stout 2

1 Department of Pharmacology, College of Physicians and Surgeons and Department of Oral Histology and Embryology, School of Dental and Oral Surgery, Columbia University
2 Department of Surgery

Variations in the calcium phosphorus metabolism have produced consistent changes in the teeth of experimental animals. The first noticeable lesion is in the odontoblastic layer accompanied by pulpal engorgement. These cells undergo a serous degeneration and subsequent autolysis. There is a proliferation of the underlying fibroblasts which replace the odontoblasts. The pulpal tissue undergoes fibrosis. Combined with these phenomena is a marked increase in the vascularity of the tissue. Prolongation of the time of experimental feeding produces an unquestionable radiolucency in the crowns of the teeth. In instances where the animals were kept alive for long periods, caries-like lesions developed in these areas.






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