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Objective <p>To assess the impact of parental psychosocial profile on the effectiveness of educational interventions aiming to improve oral hygiene among preschool children living in a rural area.</p> Methods <p>A controlled randomised trial (RBR-44nrnjz, March 5, 2023) was conducted with 78 preschool children and their caregivers residing in a rural area in southern Brazil. The participants were randomly assigned to two intervention groups: standard guidance (SG) and the teach-back technique (TB). The study comprised three phases: baseline (oral examination and data collection), Phase I (educational intervention), and Phase II (oral examination seven days post-intervention). Oral hygiene was assessed using the visible plaque index (VPI) and the Simplified Oral Hygiene Index (OHI-S). For OHI-S assessment, a mature dental biofilm (&gt; 24&#xa0;h) was identified with a disclosing agent. Psychosocial factors were assessed using the sense of coherence (SOC) and parental locus of control (PLOC) instruments. For statistical analysis, participants were categorised into two clusters: <i>Cluster 1</i> (lower SOC and higher internal PLOC) and <i>Cluster 2</i> (higher SOC and lower internal PLOC). Data were analysed using non-parametric tests.</p> Results <p>A reduction in the number of teeth with visible plaque was observed only among participants in <i>Cluster 1</i> subjected to the TB intervention. OHI-S scores decreased, regardless of the caregivers’ psychosocial profile or the type of intervention.</p> Conclusion <p>The psychosocial profile of caregivers did not affect the effectiveness of oral health educational interventions when a mature dental biofilm was considered.</p>

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Impact of parental psychosocial profile on the effectiveness of oral hygiene interventions in preschool children: a randomised controlled clinical trial in a rural population

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  • 发表日期：

    2026年5月27日

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  • Anny Caroline Schade,
  • Karina Duarte Vilella,
  • Erick Tassio Barbosa Neves,
  • Ana Flávia Granville-Garcia,
  • Fernanda de Moraes Ferreira,
  • Luciana Reichert da Silva Assunção

摘要

Objective

To assess the impact of parental psychosocial profile on the effectiveness of educational interventions aiming to improve oral hygiene among preschool children living in a rural area.

Methods

A controlled randomised trial (RBR-44nrnjz, March 5, 2023) was conducted with 78 preschool children and their caregivers residing in a rural area in southern Brazil. The participants were randomly assigned to two intervention groups: standard guidance (SG) and the teach-back technique (TB). The study comprised three phases: baseline (oral examination and data collection), Phase I (educational intervention), and Phase II (oral examination seven days post-intervention). Oral hygiene was assessed using the visible plaque index (VPI) and the Simplified Oral Hygiene Index (OHI-S). For OHI-S assessment, a mature dental biofilm (> 24 h) was identified with a disclosing agent. Psychosocial factors were assessed using the sense of coherence (SOC) and parental locus of control (PLOC) instruments. For statistical analysis, participants were categorised into two clusters: Cluster 1 (lower SOC and higher internal PLOC) and Cluster 2 (higher SOC and lower internal PLOC). Data were analysed using non-parametric tests.

Results

A reduction in the number of teeth with visible plaque was observed only among participants in Cluster 1 subjected to the TB intervention. OHI-S scores decreased, regardless of the caregivers’ psychosocial profile or the type of intervention.

Conclusion

The psychosocial profile of caregivers did not affect the effectiveness of oral health educational interventions when a mature dental biofilm was considered.