Brazilian Journal of Oral Sciences
Piracicaba Dental School - UNICAMP
Vol. 11, No. 1, 2012, pp. 52-55
Bioline Code: os12010
Full paper language: English
Document type: Research Article
Document available free of charge
Brazilian Journal of Oral Sciences, Vol. 11, No. 1, 2012, pp. 52-55
© Copyright 2012 Braz J Oral Sci.
Effect of irrigants using ultrasonics on intracanal calcium hydroxide removal – an in vitro comparative evaluation|
Rao, S. Anitha & Manasa, N.
Aim: To evaluate the efficacy of various irrigating solutions on calcium hydroxide (Apex cal and RC cal) removal with the use of ultrasonics.
Methods: The root canals of 120 single-rooted maxillary central incisors were prepared using the stepback technique. The teeth were decoronated
and split longitudinally. After filling, the two halves of roots were reassembled with sticky wax and
each group was further divided into four subgroups according to the irrigating solution: Smear
Clear, 10% citric acid, 5% EDTA and 3% NaOCl. Evaluation for cleanliness was done under a
microscope with ×12.5 magnification. Statistical analysis was done with Kruskal Wallis and Mann
Whitney tests at 5% level of significance.
Results: There was no statistically significant difference (p>0.05) for calcium hydroxide (Apex Cal and RC Cal) removal by different irrigants. There were more residues in the apical groove than in the coronal groove (p<0.05).
Conclusions: When the different irrigants were compared at coronal and apical levels, Smear Clear and citric acid were more effective in calcium hydroxide removal than EDTA and NaOCl
smear clear, calcium hydroxide, root canal irrigants
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