engleski

Heat treated GIC fissure sealants: retention after 1 year follow up

Aim. It has been suggested that application of heat during setting of glass ionomer cements (GIC) can improve mechanical properties of material and retain the same or even higher level of fluoride release. This also might improve retention rate of GIC sealant. The aim of this study was to asses retention rate of GIC fissure sealants heated during setting time. Methods. Hundred and twelve teeth with well-delineated fissure morphology divided in three groups were sealed with composite resin and GIC.In control group A that comprised 56 teeth composite resin was used (Helioseal F, Vivadent). GIC (Fuji 7, GC) was applied using split mouth design with conditioning (group B: 26 teeth) and without surface conditioning (group c: 30 teeth). GIC was heated with external heat source (Elipar Highlight, Espe) during setting time according to manufacturers instructiones. Fissure sealants were evaluated one year after clinical service. Results. Retention rate in group A was 80, 36% after one year of clinical service. Group B showed retention rate of 30, 77%, and group C of 26, 67%. After one year two new caries lesions were detected in group B and C (GIC groups). Significant differences in retention of sealant between two GIC groups, neither differences in incidence of new caries lesions. Conclusion. It could be concluded that retention rate of GIC sealing treated with heat during setting time was significantly lower than retention of conventional composite resin. The heating procedure during setting of GIc sealants could not be recommended as routine clinical practice.

GIC; fissure sealants

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