| ORIGINAL ARTICLE |
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| Year : 2017 | Volume
: 9
| Issue : 1 | Page : 26-29 |
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An in vitro study: Evaluation of intracanal calcium hydroxide removal with different file systems
Atul Jain, Nakul Patidar, Neeraj Nigam, Kanchan Bhadoria, Bharat Choudhary
Department of Conservative Dentistry and Endodontics, RKDF Dental College and Research Centre, Bhopal, Madhya Pradesh, India
Correspondence Address:
Nakul Patidar
Department of Conservative and Endodontics, RKDF Dental College and Research Centre, N.H. -12, Hoshangabad Road, Misrod, Bhopal - 462 026, Madhya Pradesh
India
 Source of Support: None, Conflict of Interest: None  | Check |
DOI: 10.4103/0976-4003.201633
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Background: Calcium hydroxide (Ca(OH)2) is the most commonly used intracanal material; it needs to be removed in entirety before obturation. Several techniques have been used for the same including use of various hand and rotary files. Aim: This study was carried out to compare the efficacy of Hand K files and single and multiple rotary file system in removal of Ca(OH)2. Methodology: Distobuccal root of 45 maxillary molars were selected on the basis of specified inclusion and exclusion criteria. They were divided into three groups - Group 1 (H and K file), Group 2 (HERO Shaper), and Group 3 (One Shape). Biomechanical preparation (BMP) was carried out as per the manufacturer's instructions; 2.5% sodium hypochlorite was used as the irrigant and 17% ethylenediaminetetraacetic acid as the penultimate irrigant. Ca(OH)2powder was mixed with normal saline to obtain a paste; canals were filled with this paste using a Lentulo spiral and were sealed. After 7 days, Ca(OH)2was removed, using the same file system as that used for BMP. Samples were sectioned longitudinally and evaluated under a stereomicroscope. Statistical Analysis: Statistical analysis of the obtained data was carried out using one-way analysis of variance test. Results: HERO Shaper displayed better removal of Ca(OH)2than One Shape and Hand K file. Moreover, removal was better in the middle third of canal than apical third. Conclusion: Multiple rotary file system (HERO Shaper) is more effective in removal of Ca(OH)2than the single file system (One Shape) |
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