Ocena szczelności brzeżnej wypełnień zakładanych po aplikacji środków hamujących krwawienie dziąsłowe

Dorota Przybyłowska¹, Marta Pawłowska¹, *Agnieszka Mielczarek²

Summary
Aim of the study: The purpose of this in vitro study was estimation of the effect of application of selected gingival retraction agents on marginal micro leakage of composite fillings. Alustin, Viscostat and Racestyptine solutions were selected for the study.
Material and methods: 40 extracted human permanent premolars and molars were used in the study. Artificial class V (acc. Black classification) cavities, covered enamel and dentine were prepared with calibrated, 4 mm length, round diamond bur. Teeth were randomized for 4 groups: 3 tested and one control. Each group consist of 10 samples. Before fillings insertion the refraction agent was applied for 60s. In group A – Alustin, in group V – Viscostat, in group R – Racestyptine, in Group K – saline solution as control. As a filling material Charisma composite was used. The marginal micro leakage of the fillings was evaluated by the 4-degree Mayer scale of dye penetration as well as by SEM images quantitative analysis.
Results: In most of the analysed tested groups the dye penetration was not observed. There were no statistically significant differences in mean size of marginal gaps between dental tissue and composite in all evaluated groups (group A – 11,5μm, in group V – 10,3μm, in group R – 9,8 μm, and in group K – 10,6 μm).
Conclusion: The results revealed that application of gingival retraction agents before composite filling insertion has no impact on marginal gap size and micro leakage. The problem of gingival bleeding during cavity preparation could be resolved by using retraction solutions and not require the postponement of final restorative treatment.

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