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. 2018 Mar 3;43(2):e15.
doi: 10.5395/rde.2018.43.e15. eCollection 2018 May.

Comparison of the shaping ability of novel thermally treated reciprocating instruments

Cangül Keskin  1 , Murat Demiral  2 , Evren Sarıyılmaz  3
Affiliations

Comparison of the shaping ability of novel thermally treated reciprocating instruments

Cangül Keskin et al. Restor Dent Endod. .

Abstract

Objectives: The present study aimed to evaluate the shaping ability of 2 thermally treated nickel-titanium reciprocating systems in simulated curved canals.

Materials and methods: Forty simulated canals were prepared to apical size 25 using Reciproc Blue R25 (VDW) and WaveOne Gold Primary (Dentsply Sirona) instruments. Standard pre- and post-preparation images were taken and superimposed. The removal of resin material was measured at 5 standard points: the canal orifice, halfway between the canal orifice and the beginning of the curve, the beginning of the curve, the apex of the curve, and the end-point of the simulated canal. The data were analysed using the independent sample t-test with a 5% significance threshold.

Results: The canals in which Reciproc Blue R25 was used showed a significantly greater widening than those in which WaveOne Gold was used at 4 of the 5 measurement points (p < 0.05). The Reciproc Blue R25 instrument removed significantly more resin from the inner aspect of the curve at 2 of the 5 points and similar amounts at the remaining 3 points. At the 2 apical points, there was no significant difference between the Reciproc Blue R25 and WaveOne Gold Primary instruments.

Conclusion: Both instruments respected the original canal anatomy; however, WaveOne Gold resulted in a more conservative shape with less transportation.

Keywords: Nickel-titanium instruments; Reciproc Blue; Simulated root canals; WaveOne Gold.

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Conflict of interest statement

Conflict of Interest: No potential conflict of interest relevant to this article was reported.

Figures

Figure 1
Figure 1
Superimposition of pre- and post-operative images and measurement points. (A) Reciproc Blue R25; (B) WaveOne Gold Primary. The 5 measurement points are as follows: (a) the canal orifice; (b) halfway between the canal orifice and the beginning of the curve; (c) the beginning of the curve; (d) the apex of the curve; (e) the end-point of the simulated canal.
See this image and copyright information in PMC

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