Shaping Ability of ProTaper Next, WaveOne, and Reciproc in Simulated Root Canals

The study aimed to compare the shaping and preservation of the original curvature of simulated curved root canals using the following instruments: Reciproc (Rcp), WaveOne (Wo), and the ProTaper Next system (Ptn). A total of 45 resin blocks with simulated curved root canals were divided into three gr...

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Bibliographic Details
Published in:	The journal of contemporary dental practice Vol. 17; no. 11; pp. 902 - 906
Main Authors:	Maia Filho, E M, Dos Reis Santos, R M, Lima, Darlon M, da Silva Pereira, S M, Soares, Janir A, de Jesus Tavarez, R R, Ferreira, Meire C, Carvalho, Ceci N, Bandeca, Matheus C, Tonetto, Mateus R, Borges, Alvaro H, de Castro Rizzi, C
Format:	Journal Article
Language:	English
Published:	India 01-11-2016
Subjects:	Computer Simulation Dental Alloys - chemistry Dental Instruments Dental Pulp Cavity - anatomy & histology Dentistry Equipment Design Humans Materials Testing Models, Anatomic Nickel Photography Resin Cements Root Canal Preparation - instrumentation Root Canal Preparation - methods Root Canal Therapy - instrumentation Rotation Titanium - chemistry Tooth Apex - anatomy & histology Root canal preparation Rotary system Endodontics
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Summary:	The study aimed to compare the shaping and preservation of the original curvature of simulated curved root canals using the following instruments: Reciproc (Rcp), WaveOne (Wo), and the ProTaper Next system (Ptn). A total of 45 resin blocks with simulated curved root canals were divided into three groups (n = 15), prepared using the Rcp (R25), Wo (25/0.8), and Ptn (X2) instruments. Standardized photographs were taken before and after canal instrumentation. After the superimposition of the images, the amount of resin removed from the curvature's inner and outer walls was measured at six apical levels, at intervals of 1 mm. The canals' angles of curvature before and after instrumentation were subtracted. There were no significant differences between the instruments in terms of the total amount of resin removed of the inner or outer walls of the apical curvature (p > 0.05). The Rcp instruments provided the best resin removed ratios between the walls. The means of the change in angle were as follows: Wo = 2.15°, Ptn = 0.92°, and Rcp = 0.21°. WaveOne caused significantly higher deviations than Rcp. All of the instruments demonstrated a tendency to straighten the simulated root canal. Instruments that use rotary movement achieved an effect similar to that of the reciprocating instruments in relation to change in angle. Deviations from the original shape of the root canal could have a negative impact on the quality of a filling and consequently on the success of the endodontic treatment.
Bibliography:	ObjectType-Article-1 SourceType-Scholarly Journals-1 ObjectType-Feature-2 content type line 23
ISSN:	1526-3711 1526-3711
DOI:	10.5005/jp-journals-10024-1951