ASSOCIATION BETWEEN ORAL HYGIENE PRACTICES AND RESTORATION LONGEVITY IN CHILDREN: A CROSS-SECTIONAL STUDY

Background: The longevity of dental restorations in paediatric patients is influenced by various factors, among which oral hygiene practices play a pivotal role. Understanding the relationship between hygiene behaviours and restoration durability can aid in improving clinical outcomes and parental education. Aim: To assess the association between oral hygiene practices and the clinical status of existing restorations in children aged 6–12 years. Methods: A cross-sectional study was conducted among 250 children attending a Paediatric/ Operative department. Data were collected using a structured questionnaire to evaluate oral hygiene practices, including brushing frequency, technique, fluoride use, and parental supervision. Clinical examination was performed to assess the integrity of restorations (GIC and composite), presence of secondary caries, marginal adaptation, and wear. Statistical analysis was done using chi-square and logistic regression tests to identify significant associations. Results: Children who brushed twice daily under parental supervision had a restoration failure rate of 12.5%, significantly lower than the 36.8% observed in children who brushed once daily without supervision (p = 0.004). The use of fluoridated toothpaste was associated with a 21.3% failure rate, compared to 38.6% in non-fluoride users (p = 0.011). Composite restorations had a higher failure rate (32.9%) compared to GIC restorations (18.4%) in children with poor oral hygiene (p = 0.03). Overall, proper hygiene practices showed a strong correlation with increased restoration longevity. Conclusion: Oral hygiene practices have a significant impact on the longevity of restorations in children. Parental involvement and consistent use of fluoridated toothpaste are key factors in enhancing the durability of restorations. These findings highlight the need for reinforcing oral hygiene education as part of paediatric dental care.