Association of parental oral health literacy, early childhood oral health behaviors, and caries severity with oral health-related quality of life among preschool children.

Post-hoc pairwise comparisons revealed that across most dimensions (including total ECOHIS scores, child function, and family function), as the severity increased, the difference from the group without caries showed an increasing trend.

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Second, the association between parental OHL and children’s OHRQoL remains contentious: while some studies have confirmed a correlation between the two [ 33 , 34 ], other studies have shown a weak correlation or one that did not reach statistical significance [ 35 – 38 ].

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