The Quality of Root Canal Preparation in Canals Treated with Rotary versus Self-adjusting Files: A Three-Dimensional Micro-Computed Tomography Study

Diyar Kh. Baker, Basam K. Amin, Sazan Sh. Saleem

Abstract


Background and Objectives: The study was designed to quantitatively evaluate the quality of root canal preparation in canals
treated with either rotary (ProTaper Next) or self adjusting files (SAF), using high resolution three-dimensional micro–computed
tomographic (Micro-CT) analysis
Methods: twenty extracted single canal tooth were selected, the root canal divided in 2 groups. In the first group, the root canal
instrumented by using ProTaper Next rotary system and the root canal irrigated with 4ml of NaOCl after each instrument. The root
canals in the second group were prepared using SAF for 2min, with continuous irrigation (NaOCl), after rescanning, the area of the
canal wall unaffected by the preparation procedure was analyzed using before and after micro-CT images.
Result: A high percentage of unaffected root canal walls were found in canals treated with rotary files, with no significant difference
between two groups.
Conclusion: Within the limitations of the present study, the self-adjusting files allowed better cleaning and shaping of the root
canal filling than those allowed by rotary files.


Keywords


ProTaper Next; Self adjusting file; Micro-CT; Unaffected root canals

References


Peters O, Peters C. Cleaning and shaping of root canal system.

In: Cohen S, Hargreaves K, Keiser K. Pathways of the pulp,

th ed. St Louis, MO Elsevier, 2006.

Haapasalo M, Endal U, Zandi H, Coil JM. Eradication of

endodontic infection by instrumentation and irrigation

solution in root canals. Endod Topics 2005; 10:77-102.

Peters OA, Paque F. Current developments in rotary root

canal instrument technology and clinical use: a review.

Quintessence Int 2010; 41:479-88.

Paque F, Ganahl D, Peter OA. Effects of root canal

preparation on apical geometry assessed by microcomputed

tomography. J Endod 2009; 35:1056-9.

Peters OA, Schonenberger K, Laib A. Effects of four Ni Ti

preparation techniques on root canal geometry assessed by

micro-computed tomography. Int Endod J. 2001; 34:221-

Metzger Z, Teperovich E, Zary R, Cohen R, Hof R. The

self-adjusting file (SAF): part 1- respecting the root

canal anatomy: a new concept of endodontic files and its

implementation. J Endod 2010; 36:679-90.

Siqueira JF Jr, Alves FR, Almeida BM, de Oliveira JC, Rocas

IN. Ability of chemo-mechanical preparation with either

rotary instruments or self-adjusting file to disinfect oval

shaped root canals. J Endod 2010; 36; 1860-5.

Perez-Higueras JJ, Arias A, Macorra JC, Peters OA.

Difference in cyclic fatigue resistance between ProTaper

Next and ProTaper Universal instruments at different

levels. J Endod 2014; 40; 160-5.

Paque F, Boessler C, Zehnder M. Accumulated hard tissue

debris levels in mesial roots of mandibular molars after

sequential irrigation steps. Int Endod J 2011; 44:148-53.

Paque F, Rechenberg D, Zehnder M. Reduction of hard

tissue debris accumulation during rotary root canal

instrumentation by etidronic acid in a sodium hypochlorite

irrigant. J Endod 2012; 38:692-5.

De-Deus G, Souza EM, Barino B, Maia J, Zamolyi RQ,

Reis C. The self-adjusting file optimizes debridment quality

in oval-shaped root canals. J Endod 2011; 37:701-5.

Endal U, Shen Y, Knut A, Gao Y, Haapasalo M. A highresolution

computed tomographic study of changes in root

canal isthmus area by instrumentation and root filling. J

Endod 2011; 37: 223-7.




DOI: http://dx.doi.org/10.26477/idj.v36i3.29

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