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Epidemiologic characteristics of dentai caries: reiation of DIVIFT and DMFS to proportion of children with DMF teeth
Author(s) -
S Jarvinen
Publication year - 1985
Publication title -
community dentistry and oral epidemiology
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 1.061
H-Index - 101
eISSN - 1600-0528
pISSN - 0301-5661
DOI - 10.1111/j.1600-0528.1985.tb01911.x
Subject(s) - medicine , dentistry , orthodontics , regression analysis , statistics , mathematics
— The relation of the age‐specific mean DMFT and mean DMFS to the age‐specific proportion of children with DMF teeth has been studied using the original data of KNUTSON and data of a recent Finnish material. When studying the relationship between the mean DMFT (x) and the proportion of children with DMF teeth (y), three models of regression were compared. For low caries popu‐lations, a specific correction exponential curve y=l‐ab 1 seemed to fit caries data somewhat better than the other models. The relationship between the mean DMFS (x) and the proportion of children with DMF teeth (y) could be expressed by a curvilinear model y=e [b(Inx)+] ; this applied to low caries populations (y≤0.7) as well, but the unexplained residual variation was about 6%