An evaluation of Knutson's formula for estimating age-specific DMF teeth

The present study evaluated a formula suggested by Knutson for obtaining an age-specific estimate of mean DMFT in a population on the basis of the age-specific percentage of individuals with 1 or more DMFT. A total of 149 previously collected age-specific data sets from low-flouride areas in the U.S...

Full description

Saved in:
Bibliographic Details
Published inCommunity dentistry and oral epidemiology Vol. 6; no. 4; p. 191
Main Authors Korts, D C, Poulsen, S, Kingman, A
Format Journal Article
LanguageEnglish
Published Denmark 01.08.1978
Subjects
Adolescent
Age Factors
Child
Child, Preschool
DMF Index
Humans
Methods
Online AccessGet more information

Cover

More Information
Summary:The present study evaluated a formula suggested by Knutson for obtaining an age-specific estimate of mean DMFT in a population on the basis of the age-specific percentage of individuals with 1 or more DMFT. A total of 149 previously collected age-specific data sets from low-flouride areas in the U.S.A. were used, and the two parameters K and B were estimated using the method of weighted least squares. The analysis showed that the formula could be used with good accuracy for certain restrictions of age (5--11 years) and percentage of individuals with 1 or more DMFT (less than or equal to 70%).
ISSN:0301-5661
DOI:10.1111/j.1600-0528.1978.tb01148.x