Occurrence of Enamel Hypoplasia in Children with Congenital Allergies

¹ Sequoia Hospital, Redwood City, and Mt. Zion Hospital, San Francisco, and Department of Oral Biology, University of California School of Dentistry, San Francisco, California

Forty-five children with congenital allergies were examined clinically and roentgenographically for enamel defects. A total of 28 males and 17 females ranging in age from three to nine gave 26 positive findings. The enamel lesions were localized in the occlusal one-third of the deciduous cuspids and first molars. This timed the onset to the last trimester of gestation. Chi-square gave a probability of occurring by chance of less than one in a thousand.