Abstract
Congenital neutropenia is one condition that may predispose for destructive periodontal disease at a young age. In this report, we describe the microbiology of 3 adolescent patients with congenital neutropenia two of whom suffered from severe periodontitis. Microbiological testing of the parents was also performed in 1 case. DNA fingerprinting was used to study transmission of putative periodontal pathogens in this case. From 1 patient with periodontitis, Actinobacillus actinomycetemcomitans and Porphyromonas gingivalis were isolated; a 2nd periodontitis patient was infected with P. gingivalis. A 3rd patient had gingivitis only and no A. actinomycetemcomitans or P. gingivalis were found. Using the amplified fragment length polymorphism DNA fingerprinting technique, bacterial transmission between the father and a patient was shown for A. actinomycetemcomitans but not for P. gingivalis.
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