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1 Department of Oral Pathology, College of Dentistry, State University of Iowa, Iowa City, Iowa
1. The mean total nitrogen (Kjeldahl) of human dental pulp was observed to be 0.1050 mg. per milligram of dried tissue and that of bovine pulp 0.1258 mg. It is suggested that this difference is a species peculiarity.
2. Age of the individual does not appear to influence the nitrogen content of human dental pulp.
3. Preservation of dental pulp in 10 per cent aqueous formalin solution does not significantly alter its suitability for nitrogen analysis by the Kjeldahl method.
Submitted on August 3, 1953
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