[Periodontitis associated with systemic diseases with qualitative deficiency of phagocyte function. III. Papillon-Lefevre syndrome].

Numerous systemic syndromes with different aetiopathogenetic and clinical features are constantly accompanied by function changes in neutrophil polymorphoanucleates and, particularly, in their chemotactic properties. The function they perform, namely impeding the invasion of the organism on the part of aggressive external factors, cannot therefore be implemented. These patients are thus abnormally susceptible to infections and present severe periodontal disease with high frequency.