Abstract
Objectives: This in vivo study was carried out to assess the influence of the operator experience on the survival rate of proximal-ART restorations using a two-layer technique to insert the glass-ionomer cement (GIC). Study Design: Forty five proximal cavities in primary molars were restored in a school setting according to the ART technique. The cavities were restored by two operators with Ketac Molar Easymix, and received a flowable layer of GIC prior to a second GIC layer with a regular consistency. The operators had different clinical experiences with ART (no experience or two years of experience), but both completed a one-week training to perform the restorations and the GIC mixing in this study. Results: After a 12-month follow-up, 74% of the restorations survived; the main reason for failure was bulk fracture or total loss of the restoration.There was no operator influence (log-rank test p=0.2) Conclusion: The results encourage future well designed controlled clinical trials using the two-layer technique for insertion of GIC in proximal-ART restorations, after training the operators. Key words:Atraumatic Restorative Treatment (ART), Glass-ionomer, proximal restorations.
Highlights
Atraumatic Restorative Treatment (ART) is an alternative approach to manage dental caries
We proposed to use this new technique for insertion of glass-ionomer cements (GIC) in proximal cavities, and aimed to assess the influence of operator effect in the survival rate of proximal-ART restorations using the two-layer technique in primary molars
This study investigated whether the insertion of a fluid GIC layer within proximal cavities prior to insertion of a regular GIC layer would be applicable to a school setting, and if this new technique, in this specific setting, would have an operator effect
Summary
Atraumatic Restorative Treatment (ART) is an alternative approach to manage dental caries. An important factor that may contribute to the failure rate of proximal-ART restoration is the highly viscous consistency of the GIC, which makes it a cement with complex handling and insertion characteristics [7]. These characteristics can lead to an incorrect adaptae529. Inserting the GIC in two layers with two different consistencies may enhance the operator/assistant effect for proximal-ART restorations, and it is not known whether this two-layer technique would be applicable to a school setting without facilities like proper illumination, suction, and dental chair. The null hypothesis tested was that there is no difference in the survival rate of two-layered proximal-ART restorations made by two operators who had different clinical experience with ART (no experience or two years of experience), both of them having followed the same training
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