Home Print this page Email this page Users Online: 224
Home About us Editorial board Search Ahead of print Current issue Archives Submit article Instructions Subscribe Contacts Login 
Year : 2015  |  Volume : 5  |  Issue : 1  |  Page : 26-32

Evaluation of the effect of duration of application of Smear Clear in removing intracanal smear layer: SEM study

1 Department of Restorative Dentistry and Endodontics, IBN Sina National College for Medical Studies, Jeddah, Saudi Arabia
2 Department of Restorative Dentistry and Endodontics, 1Karnataka Lingayat Education Viswanath Katti Institute of Dental Sciences, Belgaum, Karnataka, India

Correspondence Address:
Ankur Dua
Department of Restorative Dentistry and Endodontics, IBN Sina National College for Medical Studies, P.O. Box 31906, Jeddah 21418
Saudi Arabia
Login to access the Email id

Source of Support: None, Conflict of Interest: None

DOI: 10.4103/1658-5984.149083

Rights and Permissions

Aim: To evaluate the effect of duration of application of 17% ethylene diamine tetraacetic acid (EDTA) and SmearClear on the removal of intracanal smear layer by SEM. Materials and Methods: Seventy-two extracted maxillary incisors were root canal instrumented and randomly distributed into three groups of 24 teeth each according to different final irrigation regimens, Group A-17% EDTA + 1% sodium hypochlorite (NaOCl), Group B-SmearClear + 1% NaOCl, Group C (Control group)-Distilled water + 1% NaOCl. Further each group was subdivided into 3 subgroups according to the duration of application of the irrigating solutions for 1, 3 and 5 minutes. Following de-coronation and splitting of roots, one-half of each root was examined under scanning electron microscope (SEM) at 1000Χ magnification for smear layer at 6 mm and 2 mm levels. Data were subjected to statistical analysis using Kruskal-Wallis and Mann-Whitney U test (P < 0.05) Results: At 6 mm level, the mean smear scores were similar with both 17% EDTA solution and Smear Clear, however, at 2 mm level, they were significantly lower with Smear Clear (P < 0.05). The smear scores decreased as the duration of application of either 17% EDTA or Smear Clear increased from 1 to 5 minutes. Conclusion: Final irrigation with either 17% EDTA solution or Smear Clear followed by 1% NaOCl was effective in removing the smear layer for all three durations of applications. But, in the apical third, Smear Clear was more effective when compared with 17% EDTA solution.

Print this article     Email this article
 Next article
 Previous article
 Table of Contents

 Similar in PUBMED
   Search Pubmed for
   Search in Google Scholar for
 Related articles
 Citation Manager
 Access Statistics
 Reader Comments
 Email Alert *
 Add to My List *
 * Requires registration (Free)

 Article Access Statistics
    PDF Downloaded657    
    Comments [Add]    
    Cited by others 1    

Recommend this journal