Author/Authors :
Trevisan, Letícia Department of Stomatology - Federal University of Santa Maria - Santa Maria - Rio Grande do Sul, Brazil , Huerta, Isadora Razzera Department of Stomatology - Federal University of Santa Maria - Santa Maria - Rio Grande do Sul, Brazil , Michelon, Carina Graduate Program in Dental Science - Federal University of Santa Maria - Santa Maria - Rio Grande do Sul, Brazil , Pillar, Rafael Graduate Program in Dental Science - Federal University of Santa Maria - Santa Maria - Rio Grande do Sul, Brazil , Bier, Carlos Alexandre Souza Department of Stomatology - Federal University of Santa Maria - Santa Maria - Rio Grande do Sul, Brazil , Bello, Mariana De Carlo Graduate Program in Dental Science - Federal University of Santa Maria - Santa Maria - Rio Grande do Sul, Brazil
Abstract :
Introduction: The aim of this in vitro study was to evaluate the dissolving efficacy of eucalyptol
and orange oil solvents associated with passive ultrasonic activation (PUA) in zinc oxideeugenol
(ZOE) based and epoxy resin-based root canal sealers. Methods and Materials: Seventy
samples of each sealer were prepared and then randomized according to the solvent and the
time of the ultrasonic activation (n=5). The mean amount of weight loss of sealers was calculated
in percentages and was analyzed by using the Kruskal-Wallis and Bonferroni post-hoc tests.
Results: The greatest values of weight loss were obtained with the ZOE sealer groups (P<0.05),
regardless of the solvent that was used. An application of PUA for 3 min, with a renewal of
orange oil solvent each min, showed the greatest percentage of weight loss in ZOE sealer
compared to the others templates (P<0.05). Neither the solvent nor the different times had any
influence on the weight loss of the resin sealer (P>0.05). Conclusion: The application of PUA
with essential oils can be an effective method in dissolving ZOE based sealers.
Keywords :
Eucalyptol , Orange Oil , Retreatment , Solvent , Ultrasound
