Related Experiment Video
Updated: Jul 25, 2026

Mimicking and Measuring Occlusal Erosive Tooth Wear with the "Rub&Roll" and Non-contact Profilometry
Published on: February 2, 2018
Longitudinal evaluation of caries patterns form the primary to the mixed dentition
A L Greenwell1, D Johnsen, T A DiSantis
1Children and Youth Clinic, University of Louisville, Kentucky.
Abstract:
The purpose of this study was to develop a model describing the sites and patterns of dental caries in the mixed dentition for children with one of five caries experiences in the primary dentition. Dental records were used from 317 children followed an average of 7.8 years in private pediatric dental offices to assess specific caries experiences in children from early primary dentition to middle or late mixed dentition. Eighty-four per cent of the children who were caries-free in the primary dentition remained so in the mixed dentition. Children with the pit and fissure caries pattern in the primary dentition were more likely to develop smooth surface caries of primary teeth in the mixed dentition (32%) than caries-free children (14%, X2 = 5.6;P less than 0.05). For children with molar-approximal lesions in the primary dentition, 57% developed lesions on additional molar-approximal surfaces in the primary teeth in the mixed dentition. Children with the faciolingual pattern (baby bottle tooth decay) were at the highest risk of any group for developing additional carious lesions. The model could serve as a basis for a prospective study.
Related Concept Videos
Longitudinal Research
Teeth
In the bud stage, the tooth germ (an aggregation of cells) starts to form in the developing jawbone. During the cap stage, the tooth germ differentiates into enamel organ, dental papilla, and dental sac, which will later develop into the tooth's enamel, dentin and...
Tooth Anatomy
The Crown, Neck, and Root
The visible part of the tooth is referred to as the crown. It's covered by enamel, the hardest substance in the human body. The crown is uniquely shaped for each type of tooth, allowing for different functions such as cutting, tearing, or grinding food.
Assessment of the Mouth
Mouth Inspection
The inspection begins with visually examining the mouth for symmetry, color, and size.
Longitudinal Studies
Development of the Oral Microbiota

