Home Print this page Email this page Users Online: 413
Home About us Editorial board Search Ahead of print Current issue Archives Submit article Instructions Subscribe Contacts Login 
Year : 2012  |  Volume : 2  |  Issue : 1  |  Page : 29-35

Assessment of three root canal preparation techniques on root canal geometry using micro-computed tomography: In vitro study

1 Department of Conservative Dentistry, College of Dentistry, Ajman, United Arab Emirates
2 Department of Conservative Dentistry, College of Dentistry, Ajman University of Sciences and Technology, Ajman, United Arab Emirates
3 Consultant Oral and Maxillofacial Surgeon, Dental Implant HOD (Dental), Al Baraha Hospital Dubai, United Arab Emirates

Correspondence Address:
Shaikha M Al-Ali
College of Dentistry, Ajman University of Sciences and Technology, Ajman
United Arab Emirates
Login to access the Email id

Source of Support: None, Conflict of Interest: None

DOI: 10.4103/1658-5984.104419

Rights and Permissions

Aim: To assess the effects of three root canal preparation techniques on canal volume and surface area using three-dimensionally reconstructed root canals in extracted human maxillary molars. Materials and Methods: Thirty extracted Human Maxillary Molars having three separate roots and similar root shape were randomly selected from a pool of extracted teeth for this study and stored in normal saline solution until used. A computed tomography scanner (Philips Brilliance CT 64-slice) was used to analyze root canals in extracted maxillary molars. Specimens were scanned before and after canals were prepared using stainless steel K-Files, Ni-Ti rotary ProTaper and rotary SafeSiders instruments. Differences in dentin volume removed, the surface area, the proportion of unchanged area and canal transportation were calculated using specially developed software. Results: Instrumentation of canals increased volume and surface area. Statistical analysis found a statistically significant difference among the 3 groups in total change in volume (P = 0.001) and total change in surface area (P = 0.13). Significant differences were found when testing both groups with group III (SafeSiders). Significant differences in change of volume were noted when grouping was made with respect to canal type (in MB and DB) (P < 0.05). Conclusion: The current study used computed tomography, an innovative and non destructive technique, to illustrate changes in canal geometry. Overall, there were few statistically significant differences between the three instrumentation techniques used. SafeSiders stainless steel 40/0.02 instruments exhibit a greater cutting efficiency on dentin than K-Files and ProTaper. CT is a new and valuable tool to study root canal geometry and changes after preparation in great details. Further studies with 3D-techniques are required to fully understand the biomechanical aspects of root canal preparation.

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 Downloaded445    
    Comments [Add]    

Recommend this journal