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VOLUME 14 , ISSUE 2 ( March-April, 2013 ) > List of Articles


Removal Efficiency of Calcium Hydroxide Dressing from the Root Canal without Chemically Active Adjuvant

Lara Maalouf, Alfred Naaman

Citation Information : Maalouf L, Naaman A. Removal Efficiency of Calcium Hydroxide Dressing from the Root Canal without Chemically Active Adjuvant. J Contemp Dent Pract 2013; 14 (2):188-192.

DOI: 10.5005/jp-journals-10024-1298

Published Online: 01-08-2013

Copyright Statement:  Copyright © 2013; The Author(s).



Compare the efficiency in removing two calcium hydroxide [Ca(OH)2] preparations from root canal and apical third using single use syringe, ultrasonics and RinsEndo® with saline solution.

Materials and methods

One hundred and eighty human singlerooted teeth were instrumented using ProTaper® rotary system, divided into two groups according to Ca(OH)2 filling. A: Powder mixed with water, B: Pulpdent®. Each group was divided into three subgroups for the irrigation: A1, B1: Single use syringe; A2, B2: Ultrasonics; A3, B3: RinsEndo®.

Teeth were split longitudinally, photographed and imported into Adobe Photoshop. The percentage ratios of Ca(OH)2 remaining in the canal and in the apical third were calculated. Data were statistically analyzed using ‘ANOVA two-way’ and ‘univariate tests’.


(a) Remnants of medicament were found in all teeth, (b) no statistically significant difference in the elimination of both Ca(OH)2 from the entire canal (p = 0.436), however, mixed powder was better eliminated from the apical third (p = 0.005), (c) no statistically significant difference among the irrigation techniques in the whole canal (p = 0.608), though, RinsEndo® and ultrasonics were the most effective in cleaning the apical third (p = 0.032) when mixed powder was used.


None of the techniques removed completely Ca(OH)2 from the canal. In the apical third, RinsEndo® and ultrasonics were the most effective when mixed powder was used.

Clinical significance

Ca(OH)2, the most commonly used intracanal dressing, should be completely eliminated before the obturation to assure a good endodontic sealing. Based on the results of this study, RinsEndo® and ultrasonics were the most effective in removal of Ca(OH)2 especially the powder mixed with water presentation.

How to cite this article

Maalouf L, Zogheib C, Naaman A. Removal Efficiency of Calcium Hydroxide Dressing from the Root Canal without Chemically Active Adjuvant. J Contemp Dent Pract 2013;14(2):188-192.

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