Glass Carbomer Class II Restorations in Deciduous Teeth: 2-year Follow-up

Objectives: This paper compared the survival rates of Class II atraumatic restorations (ART) in deciduous teeth using glass carbomer cement (GCP Glass Fill) and a high viscosity glass ionomer cement (Equia Fil).
Methods: The sample consisted of 33 children (8 + 2 anos) who received 59 restorations. All ART restorations were placed by a Pediatric Dentist. The clinical performance of the restorations (baseline, 6, 12 and 24 months follow-up) was accomplished by two trained and calibrated examiners, who were blinded regarding the restorative material used. The evaluation method consisted in 8 scores according to the ART criteria. Statistical analysis was done using Fisher’s test (CI=95%; α=0.05).
Results: The success rates at 6-month follow-up for GCP Glass Fill and Equia Fil were 69% (51 -83) and 83% (66–93), respectively, without difference between groups (p=0.20). However, at 12 and 24 months, differences were significant (p= 0.03; p=0.007). The success rates were 56% (37 -73) and 86% (69–94) at 12 months follow-up and 33% (18–54) and 75% (55–88) at 24 months follow-up, for GCP Glass Fill and Equia Fil, respectively.
Conclusions: The glass carbomer cement showed inferior clinical performance when compared to high viscosity glass ionomer cement in Class II restorations in deciduous teeth.