Research Article

Prevalence of Dental Caries in 5- and 6-Year-Old Myanmar Children

Figure 2

Item response curve of the sensitivity for dental caries of deciduous teeth. Horizontal axis indicates the total score of dental caries which is standardized as the def; 99% of def were transformed into −4 to 4. Vertical axis indicates the percent of subjects with dental caries for each tooth. When the ability (total score of dental caries) is fixed, prevalence of dental caries can be estimated. The curve located left side indicated that the teeth are highly susceptible to dental caries. The curve located right side indicated that the teeth are highly tolerant to dental caries.