Abstract:
Background: The main objective of endodontic therapy is to adequately clean and seal the root
canal system. According to Grossman et al, idealistically root canal sealers must be dimensionally
stable, produce a tight seal after setting and exhibit an adequate setting time. They should also be
insoluble and provide adequate adhesion with the root canal walls.
Therefore, the present study was conducted to evaluate some physio-chemical characteristics of
novel poly-dimethyl-siloxane gutta-percha calcium-silicate containing sealer (GuttaFlow bioseal)
in contrast with a commercially available zinc oxide and eugenol sealer (ZnO/E).
Materials and Methods: Flow, setting time, working time, film thickness and dimensional
changes were evaluated for Guttaflow bioseal and contrasted to a commercially available zinc oxide
and eugenol sealer (ZnO/E) following the ADA specification number 57.
Results: In Flow, setting time and working time tests; ZnO/E sealer showed higher mean
values than that of GuttaFlow bioseal with an extremely significant difference, while film thickness
of GuttaFlow bioseal was significantly higher than that of ZnO/E sealer. Results of dimensional
changes test showed a significant difference between both sealers, where GuttaFlow bioseal
exhibited a positive mean value, while ZnO/E exhibited a negative mean value.
Conclusions: It can be concluded that; GuttaFlow bioseal might be an acceptable substitute to
zinc oxide and eugenol sealer. New researches in-vivo and in-vitro should be postulated for better
interpretation of the physical properties of endodontic sealers.