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Review
. 2018 Sep-Oct;8(5):386-390.
doi: 10.4103/jispcd.JISPCD_225_18. Epub 2018 Aug 6.

Nickel-Titanium Rotary Instruments: Development of the Single-File Systems

Maryam Kuzekanani  1   2
Affiliations
Review

Nickel-Titanium Rotary Instruments: Development of the Single-File Systems

Maryam Kuzekanani. J Int Soc Prev Community Dent. 2018 Sep-Oct.

Abstract

Over the past two decades, the nickel-titanium (NiTi) rotary instruments have highly improved the quality of the cleaning and shaping of the root canals. The superelasticity and shape memory of these instruments reduce the possibility of the canal transportation along with saving the time for both the patients and the clinicians. Several commercial types of these instruments, produced by different manufacturers, have currently become available by modifying the characteristics of the wonder NiTi alloy and also the cross-sectional shapes, cutting edges, tapering and numbers and distances of the flutes of the instruments. Up to this date, five generations for NiTi rotary instruments have been described according to the time of introduction, properties, and method of application. The aim of this article is to review the evolution of these five generations of NiTi rotary instruments since their inception.

Keywords: Nickel-titanium; rotary; single file.

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Conflict of interest statement

There are no conflicts of interest.

Figures

Figure 1
Figure 1
Revo S nickel–titanium rotary system
Figure 2
Figure 2
HyFlex EDM / CM nickel–titanium rotary system
Figure 3
Figure 3
A NSK. Endo It motor used along with most single-file rotary systems
Figure 4
Figure 4
XP-endo shaper–FKG Dentaire
Figure 5
Figure 5
Self-adjusting file-ReDent Nova
Figure 6
Figure 6
One Curve-Micro-Mega
See this image and copyright information in PMC

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