Periodontal disease and oral hygiene among children, United States : estimates of the periodontal index (PI) and the simplified oral hygiene index (OHI-S) for noninstitutionalized children aged 6-11 years in the United States, by age, sex, race, family income, education of the head of household, and geographic region, and a correlation analysis of the interrelation of the PI, OHI-S, and selected demographic characteristics /

Bibliographic Details
Corporate Author: National Center for Health Statistics (U.S.)
Format: Book
Language:English
Published: Rockville, USA : For sale by the Supt. of Docs., U. S. Govt. Print. Off., 1972
Series:Vital and health statistics-Series 11
Subjects: