Home About us Editorial board Ahead of print Current issue Search Archives Submit article Instructions Subscribe Contacts Login 
  • Users Online: 474
  • Home
  • Print this page
  • Email this page
Year : 2021  |  Volume : 18  |  Issue : 1  |  Page : 52

Effect of various single file systems on microcrack formation in root canals: Scanning electron microscope study

1 Department of Dentistry, AIIMS, Nagpur, Maharashtra, India
2 Department of Dentistry and Endodontics, Chhattisgarh Dental College and Research Institute, Rajnandgaon, Chhattisgarh, India
3 Department of Dentistry and Endodontics, Rungta College of Dental Sciences and Research, Bhilai, Chhattisgarh, India
4 Orthodontist, Private Practitioner, Chhattisgarh, India

Correspondence Address:
Dr. Ganesh R Jadhav
Department of Dentistry, AIIMS, Nagpur, Maharashtra
Login to access the Email id

Source of Support: None, Conflict of Interest: None

DOI: 10.4103/1735-3327.321863

Rights and Permissions

Background: The aim of this study was to compare dentinal crack formation in root canal walls following 3 single file systems with continuous rotation under a scanning electron microscope (SEM). Materials and Methods: In this SEM study, seventy mandibular premolars were randomly divided into 5 groups. 3 experimental groups (n = 20) and 2 control groups (n = 5) as follows: Group I: Neolix NiTi file system, Group II: OneShape systems, Group III: OneCurve file system, positive control: conventional Hand File system, negative control: unprepared. After root canal preparations, the roots were sectioned at 3, 6, and 9 mm from the apex with water irrigation. The sections were inspected in all directions under SEM at × 100 magnification to determine the presence of cracks. The Chi-square test was used to analyze the data. There is a statistically significant difference in the crack formation between the apical third (P = 0.012) and coronal third (P = 0.002) when comparing all the 5 groups. No significant difference is found in the middle third (P = 0.46). P < 0.05 is considered statistically significant. Results: Maximum cracks in the apical third were seen with One Shape file 11 (55%) and in the coronal third with Neolix NiTi 14 (70%). There is a statistically significant difference in the crack formation only in OneCurve when comparing the apical, middle, and coronal third for the individual group (P = 0.042). Conclusion: There was a significant difference in crack formation in apical and coronal third. OneCurve caused the least incidence of cracks when compared to other file systems. OneCurve file system can be a choice for canal preparation over Neolix Niti and OneShape.

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 Downloaded273    
    Comments [Add]    

Recommend this journal