Evaluation of Dental Status and Its Association with Oral Health-Related Quality of Life in Preschool Children in Zahedan City, Iran: A Cross-Sectional Study


Background: Several factors can affect the oral health-related quality of life in children.

Objectives: The aim of this study was to evaluate the dental status and its relationship with the oral health-related quality of life in preschool children in Zahedan City, Iran.

Methods: In this descriptive-analytical cross-sectional study, 200 preschool children (5 - 6 years old) were randomly selected from different areas of Zahedan city. Dental health status of children was investigated using the decayed, missing and filled teeth (DMFT) questionnaire. Oral-health-related quality of life of the children and their parents was measured using the Farsi version of the early childhood oral health impact scale (F- ECOHIS index). Data were analyzed using SPSS version 20, statistical t-test and Pearson correlation coefficient at the significant level of 0.05.

Results: The mean scores of F- ECOHIS and DMFT for all studied children were 10.94 ± 7.67 and 5.05 ± 4.48, respectively. No significant relationship was found between the DMFT and F- ECOHIS indices in children (r = 0.26, P = 0.563) and their parents (r = 0.16, P = 0.217).

Conclusions: Under the limitations of the present study, there is no significant relationship between the DMFT index and the index of oral health-related quality of life. Further studies are recommended.