Influence of Isolation Technique on the Survival of Resin-Modified Glass-Ionomer Restorations in Primary Molars: A 9-Months Randomized Controlled Trial


  • Sabrina Wilde
  • Caroline Simão Sarti
  • Julia Toniolo
  • Bethania Paludo Oliveira
  • Daiana Back Gouvea
  • Nicole Marchioro dos Santos
  • Maria Luiza Vieira Borges
  • Jonas Almeida Rodrigues


Dental Caries, Survival Analysis, Deciduous Tooth, Rubber Dams


Objective: To compare the survival of occlusal and occlusal-proximal restorations performed with resin-modified glass-ionomer cement (RMGIC) in deciduous molars using rubber dam and cotton rolls isolation. Material and Methods: Ninety-two patients were included and 200 deciduous molars with cavitated occlusal or occlusoproximal dentin caries lesions were randomized into two groups: cotton rolls (n = 100) and rubber dam (n = 100) and RMGIC restorations were placed. At baseline and in the follow-up visit, presence, severity and activity of caries lesions were registered. Two independent, blinded examiners evaluated the treated teeth clinically using the USPHS criteria and radiographically after 9 months. Descriptive analysis, survival curve (log-rank test) and Cox regression were performed to assess risk factors related to failure. Results: Out of the 179 teeth (92 cotton rolls group and 87 rubber dam group) evaluated at 9-month follow-up period. No lesion progression was observed radiographically. The overall treatment success rate was 85.47% (83.47% for cotton rolls and 87.35 rubber dam group). No significant difference between isolation methods was observed in the log-rank test (p = 0.16). Cox regression showed no risk factors related to failure. Conclusion: No difference was found in the survival of occlusal and occlusal-proximal restorations performed with RMGIC in deciduous molars using a rubber dam and cotton rolls isolation after a 9-month follow-up period.


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How to Cite

Wilde, S. ., Sarti, C. S. ., Toniolo, J. ., Oliveira, B. P., Gouvea, D. B. ., dos Santos, N. M. ., Borges, M. L. V. ., & Rodrigues, J. A. . (2021). Influence of Isolation Technique on the Survival of Resin-Modified Glass-Ionomer Restorations in Primary Molars: A 9-Months Randomized Controlled Trial. Pesquisa Brasileira Em Odontopediatria E Clínica Integrada, 21, e0195. Retrieved from



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