title: Fractal structure of caries.
abstract: Between 1991 and 1993, the data of 479 clinical records were compiled about caries in the permanent teeth of subjects of both sexes, whose dental examinations were carried out in a private dental clinic in the city of Salamanca and who were distributed by age into groups of 16-65, 26-55 and 36-45 years. Using the method known as system of expansion-contraction, we showed that caries has a non-linear dynamic, whose evolution in time is difficult to predict and which has a fractal geometry. This study shows the fractal geometry of caries and to achieve this uses a little-known method which will be of great use in future research.
authors.forename: J M
authors.initials: JM
authors.lastname: Gonzalez-Gonzalez
mesh_terms: D000293:Adolescent; D000328:Adult; D000367:Age Factors; D003731:Dental Caries / Q000503:physiopathology*; D018450:Disease Progression; D005260:Female; D005544:Forecasting; D017709:Fractals; D006801:Humans; D008297:Male; D008875:Middle Aged; D017711:Nonlinear Dynamics; D013030:Spain