Bilayer technique and nano-filled coating increase success of approximal ART restorations: a randomized clinical trial.

Autor: Hesse D; Orthodontics and Pediatric Dentistry Department, Dental School, University of São Paulo - USP, São Paulo, Brazil., Bonifácio CC; Department of Cariology, Endodontics and Pedodontology, Academic Centre for Dentistry Amsterdam (ACTA), Amsterdam, The Netherlands., Guglielmi Cde A; Orthodontics and Pediatric Dentistry Department, Dental School, University of São Paulo - USP, São Paulo, Brazil., Bönecker M; Orthodontics and Pediatric Dentistry Department, Dental School, University of São Paulo - USP, São Paulo, Brazil., van Amerongen WE; Department of Cariology, Endodontics and Pedodontology, Academic Centre for Dentistry Amsterdam (ACTA), Amsterdam, The Netherlands., Raggio DP; Orthodontics and Pediatric Dentistry Department, Dental School, University of São Paulo - USP, São Paulo, Brazil.
Jazyk: angličtina
Zdroj: International journal of paediatric dentistry [Int J Paediatr Dent] 2016 May; Vol. 26 (3), pp. 231-9. Date of Electronic Publication: 2015 Sep 15.
DOI: 10.1111/ipd.12194
Abstrakt: Background: The high-viscosity consistency of glass ionomer cement (GIC) may lead to its incorrect adaptation into the cavity and therefore to restoration failure.
Aim: To compare two different insertion techniques for GIC in approximal atraumatic restorative treatment (ART) restorations and two different surface protection materials.
Design: Approximal caries lesion in primary molars from 208 schoolchildren was randomly assigned into four groups: G1, conventional GIC insertion protected with petroleum jelly (PJ); G2, bilayer technique protected with PJ; G3 conventional GIC insertion protected with nano-filled particles coating for GIC (NPC); G4, bilayer technique protected with NPC. Restorations were evaluated after 1, 6, 12, 18, 24, and 36 months. Kaplan-Meier survival analysis and log-rank test were performed. Cox regression analysis (α = 5%) was used to verify the influence of clinical factors.
Results: Restoration survival was 52.8%. Log-rank test indicated a better survival of the bilayer technique restorations, compared to conventional restorations (P = 0.005), whereas the coated conventional restorations presented higher survival than the uncoated ones (P = 0.035). Cox regression analysis showed no influence of any clinical tested variables.
Conclusion: The survival rate of the approximal ART restorations is positively influenced by the bilayer technique, and the application of nano-filled coating increases the longevity of the conventional approximal ART restorations.
(© 2015 BSPD, IAPD and John Wiley & Sons A/S. Published by John Wiley & Sons Ltd.)
Databáze: MEDLINE
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