Randomized Clinical Trial of ART Class II Restorations Using Two Glass Ionomer Cements: Six-month Follow-Up

Abstract

Objective: The purpose of this study was to compare success rates of ART (atraumatic restorative treatment) Class II restorations in primary teeth, performed with high-viscosity glass ionomer cement (HVGIC) and a Silver Diamine Fluoride (SDF)-incorporated with HVGIC (SDF-HVGIC) after 6 months.

Materials and Methods: A controlled clinical trial using a parallel group design was carried out on 150 children aged 4-8 years old, from 5 public kindergartens in Samut Sakhon province, Thailand, with at least one class II cavities. They were randomly allocated to two treatment groups: ART restoration using either HVGIC (GC Fuji IX GP^â ) or SDF-HVGIC (GC Fuji IX GP^â + Saforide^â). A total of 150 restorations were placed in vital primary molars by a pediatric dentist (HVGIC= 75, SDF-HVGIC= 75) and were evaluated­­ by one calibrated examiner, blinded to the type of material and not involved in the placement after 6 months.

Results: After 6 months, 138 children (92 percent) remained in the study. The overall success rate (95 percent confidence interval) at the six-month follow-up for the HVGIC and SDF-HVGIC were 73.3 percent (61.9-82.9) and 62.7 percent (50.7-73.6), respectively. No significant difference was detected between the study groups (Chi’s square test, P=0.16).

Conclusion: Class II ART restorations with HVGIC (high-viscosity glass ionomer cement) showed similar success rates after 6 months compared to those with SDF-HVGIC (SDF-incorporated high-viscosity glass ionomer cement).