| Summary: | BACKGROUND AND AIM: Dental health plays a key role in the overall health status and quality of life in children.
Consequences of dental diseases in children may result in impairments of daily life activities. The aim of this study was
to assess the relationships between dental health and educational performances in elementary students.
METHODS: A total of 300 elementary students from the second to fifth grades in ninth district of Tehran, Iran, were
included in this study according to inclusion criteria. Questionnaire gathering information about the students’
demographic background, medical and dental histories was sent to their parents. The students’ academic performances
were assessed based on the school absence in relation to dental problems, their school grades and doing homework.
Oral health status was assessed based on the World Health Organization (WHO) standards using caries and oral hygiene
indices. Data were analyzed by the Pearson’s correlation and linear regression analysis. All statistical levels were made
at 0.05 for the Pearson’s correlation and 0.1 for linear regression analysis.
RESULTS: School test grades and school absences due to dental problems were statistically associated with oral hygiene
index (OHI) of the students (P = 0.010 and P = 0.040, respectively). The indices of dental caries in primary or
permanent teeth were not significantly associated with school performances (P ≥ 0.140). The analysis revealed that the
factors i.e., housing status and living with the parents are statistically associated with the oral health indices (P = 0.050
and P =0.080; respectively) and on the other hand with school performances (P = 0.020 and P = 0.010; respectively).
CONCLUSION: Children with poorer oral health status were more likely to perform poorly in school. Socio-economic
status of the students affects negatively both school performances and oral health care. Also, oral health status and
dental problems may cause deterioration in educational conditions.
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