Clinical appearance: affects most or all the teeth with 1st molars and incisors being the most severely involved; inflammation IS present with heavy plaque and calculus
Etiology: neutrophil chemotactic disorder
Microbiology: P. gingivalis, Eikenella corrodens, A. a
Diagnosis: generally younger than 20
Treatment/Prognosis: improved OH, scaling and root planing, antibiotic therapy, periodontal surgery