Journal of AdvancedMedical and Dental Sciences Research

Background: Calcium hydroxide (Ca(OH)2) is mainly used for intracanal material; it needs to be removed in entirety before obturation.  However, complete removal of Ca(OH)2 is very difficult from canal walls resulting in its residues on canal wall which interfere with bonding of sealers and reduce success of root canal treatment. Materials and Methods: The present study included forty freshly extracted human mandibular canine teeth with intact mature apices. All teeth were prepared and Lentulo spiral was used to carry the Ca(OH)2 and placed into the canal until the medicament is seen at the apex of the working length. A cotton pellet is kept inside the access cavity and covered with temporary filling material. The teeth were categorized into two groups (20 each) as per the Ca(OH)2 dressing removing protocol used: Group A: EndoVac system, Group B: Rotary Files. After the preparation, all the sample teeth were sectioned buccolingually. Sectioning of the teeth was followed by observation of individual teeth under a stereo microscope (40X magnification). Results: EndoVac system (3.10± 0.14) showed the maximum removal of the medicament followed by Rotary Files (2.18 ± 0.62). A significant difference was found between the apical and coronal third of the root was noticed in EndoVac system with a P value of 0.001 statistically. There was no significant difference was observed with Rotary Files. Conclusion: On conclusion, Ca(OH)2 could not be completely removed in both the techniques. EndoVac system showed better calcium hydroxide removal efficacy from root canal.
Key words: Calcium hydroxide, EndoVac system, Root canal preparation, Rotary Files.

Received: 4 February, 2019                               Revised: 25 February, 2019                     Accepted: 26 February, 2019
Corresponding Author: Dr. Anupama Ahirwar, Senior Resident, Gandhi Medical College, Bhopal, Madhya Pradesh, India,

This article may be cited as: Ahirwar A, Shrivastava N, M Shilpa, Kumari D. Assessment of calcium hydroxide removal efficacy from root canal using two different techniques-An Invitro study. J Adv Med Dent Scie Res 2019;7(3): 109-111.