The authors estimate the prevalence of early-onset periodontitis, or E
OP, in U.S. adolescents and describe the clinical features that occur
at an early stage in those who have EOP. In 1986 and 1987, about 10.0
percent of African-American, 5.0 percent of Hispanic and 1.3 percent o
f white U.S. adolescents had ECP. Clinical features that may be useful
in the early detection of EOP include overt gingival inflammation, de
ntal calculus and a high rate of caries, restorations and tooth loss.