Caries Risk Assessment in Children Aged 6-12 years based on Parental Knowledge and Its Relationship with BMI and DMFT in Ahvaz
Keywords:Caries risk assessment (CRA), DMFT, BMI
Background: The prevalence of dental caries in childhood is one of the problems related to children’s oral
health. The aim of this study was to determine the risk of caries in children aged 6-12 years based on parental
information and its relationship with BMI and DMFT in Ahvaz.
Methods and materials: The necessary permits were obtained from the Ahvaz Education Department, and
then 300 samples of the city’s primary schools were selected. Students were examined with a disposable
dental mirror and the number of decayed, missed, and restored permanent and deciduous teeth was recorded
in the DMFT table. After that, the questionnaire was completed with the help of parents. The validity of this
questionnaire was confirmed by 5 pediatric dentists and the reliability of this questionnaire was confirmed
by conducting a pilot study on 10 children based on Cornbach coefficient of 0.85.
Results: Maternal occupation was associated with moderate caries risk (p = 0.007). Economic situation was
associated with low risk (p = 0.0001). The mean weight of the child in the high risk group was significantly
higher than the low risk groups (p <0.001) and medium risk (p <0.001). The mean DMFT in the low risk
group was significantly lower than the medium risk (p <0.001) and high risk groups (p <0.001). The mean
BMI in the high risk group was significantly higher than the medium risk groups (p <0.001) and low risk (p
Conclusion: Economic status, mother’s job and child’s weight are associated with caries risk. Also, DMFT
and BMI index have a direct and significant relationship with the risk of caries.
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