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December 6, 1941


Author Affiliations

Richmond. School of Dentistry Medical College of Virginia

JAMA. 1941;117(23):2001. doi:10.1001/jama.1941.02820490075031

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To the Editor:—  In the September 27 issue, page 1099, appears an editorial entitled "Dietary Healing of Dental Caries." The opinions clearly reveal that some one has disseminated misleading interpretations of a physiologic process previously described.A careful reading of Sognnaes' paper in Science reveals a tendency on the part of the author to wishful thinking when he applies the term reparative process to what is obviously the deposition of secondary dentin. The person who wrote the editorial certainly went Sognnaes one better with his statement that secondary dentin more or less filled the earlier cavity. Secondary dentin forms in all rats' teeth subject to wear and frequently in rats' teeth that are not subject to wear, regardless of the presence or absence of dental caries. Hoffman and Schour (Am. J. Orthodontics26:854 [Sept.] 1940) have described this process in mathematically exact terms. Their work, coupled with mine, explain

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