Restor Dent Endod.  2018 May;43(2):e15. 10.5395/rde.2018.43.e15.

Comparison of the shaping ability of novel thermally treated reciprocating instruments

• Keskin C
• Demiral M
• Sarıyılmaz E

• KMID: 2416516
• DOI: http://doi.org/10.5395/rde.2018.43.e15

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.

Keyword

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

MeSH Terms

Transportation