The Sealing Ability of Bio Ceramic Sealer using Different Irrigation Solutions (A Comparative Study)
Aims: To evaluate the effect of different root canal irrigants (17%EDTA, 5.25%NaOCl, 17%EDTA+5.25%NaOCl and distilled water) on the sealing ability of bio ceramic endodontic sealer. Materials and method: The root canals of 28 human teeth with single root were decoronated, prepared and divided into 4 groups as related to the type of final irrigant used (n=7): In group A (control group): distilled water was used, in group B: (17%EDTA) was used, in group C: (5.25%NaOCl) irrigant was used, and in group D: (both 17%EDTA and 5.25%NaOCl) were used alternatively. All the canals were obturatred with bio ceramic sealer and X2 protaper next gutta-percha points. After incubation period for 3 days, all the root was immersed in an Indian ink dye and kept in an incubator for another 3 days. Then the teeth were washed and cleaned, sectioned and the apical microleakage was evaluated by using stereomicroscope. Results and discussion: Statistical analysis revealed a significant difference between groups (p≤0.05). The lowest mean of microleakage was found in group D in which both 17% EDTA and 5.25%NaOCl irrigants were used, followed by group B in which 17% EDTA irrigants was used, then group C in which 5.25%NaOCl irrigants was used while group A that used distilled water as final irrigant revealed the highest mean of microleakage. Conclusion: Alternative irrigation of the root canals with 17%EDTA and 5.25%NaOCl enhanced the apical seal of the bio ceramic root canal sealer and decreased the apical microleakage.