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Article
February 1976

Allergic Contact Dermatitis Cinnamic Aldehyde-Flavored and Stomatitis Caused by a Toothpaste

Author Affiliations

From the Department of Dermatology, University of California School of Medicine, San Francisco.

Arch Dermatol. 1976;112(2):202-203. doi:10.1001/archderm.1976.01630260026007
Abstract

• A patient had acute stomatitis and dermatitis due to a popular toothpaste containing cinnamon oil flavor. Cinnamon cassia oil is known as a topical sensitizer and was demonstrated to be the offending allergen. Cinnamic aldehyde and related chemicals are used widely, so that patients having cinnamon allergy may be exposed to many sources. There is difficulty in diagnosing allergic contact stomatitis.

(Arch Dermatol 112:202-203, 1976)

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