Rubber dam isolation increases the costs and does not impact on composite resin restorations’ survival in primary teeth. 2-year results from a non-inferiority clinical trial

Autor: Isabel C. Olegário, Bruna L. P. Moro, Tamara K. Tedesco, Raiza D. Freitas, Ana Laura Pássaro, Jonathan Rafael Garbim, Rodolfo Oliveira, Fausto M. Mendes, Daniela Raggio, Cardec Collaborative Group
Rok vydání: 2022
Popis: Background This non-inferiority randomised trial aimed to evaluate the survival rate, costs and discomfort/behaviour of two operative field isolation methods. Methods A total of 93 4–8 years old children (174 molars) with at least one dentine caries lesion were randomly allocated to groups: rubber dam isolation (RDI) and cotton roll isolation (CRI), restored with bulk fill composite resin. Two blinded examiners assessed the restorations up to 24 months. Wong-baker faces, and Frankl’s behaviour rating scales were used for accessing child’s discomfort and behaviour, respectively. For the statistical analysis, the primary outcome (restoration survival) used two-sample non-inferiority test for survival data using Cox Regression, Bootstrap Linear regression analysis for cost analysis and logistic regression for discomfort and behaviour. Results 157 restorations were evaluated (drop-out = 9.7%). Survival was RDI = 60.4% and CRI = 54.3. The non-inferiority hypothesis was accepted by the Cox Regression analysis (HR = 1.33; 90% CI 0.88–1.99; p = 0.036). RDI was 53% more expensive when compared to the CRI group. No differences were found between the groups in terms of discomfort and behaviour. Conclusion Cotton roll isolation proved to be non-inferior when compared to rubber dam for composite restorations longevity in primary molars. Furthermore, the latest presented the disadvantage of higher cost and longer procedure time. Clinical Significance: Rubber dam isolation has no impact on the survival of composite restoration in primary molars. Clinical trial registration: registered NCT03733522 on 07/11/2018. The present trial was nested within another clinical trial, the CARies DEtection in Children (CARDEC-03 - NCT03520309).
Databáze: OpenAIRE