In Vitro Comparison of Cyclic Fatigue Resistance of ProTaper, WaveOne, and Twisted Files

被引：50

作者：

Castello-Escriva, Ricardo ^{[1
]}

Alegre-Domingo, Teresa ^{[1
]}

Faus-Matoses, Vicente ^{[1
]}

Roman-Richon, Sophie ^{[1
]}

Faus-Llacer, Vicente J. ^{[1
]}

机构：

[1] Univ Valencia, Sch Med & Dent, Dept Restorat Dent & Endodont, Valencia, Spain

来源：

JOURNAL OF ENDODONTICS | 2012年 / 38卷 / 11期

关键词：

Cyclic fatigue; endodontic instruments; nickel-titanium; reciprocating movement; WaveOne; TITANIUM ROTARY INSTRUMENTS;

D O I：

10.1016/j.joen.2012.07.010

中图分类号：

R78 [口腔科学];

学科分类号：

1003 ;

摘要：

Introduction: The aim of this study was to compare the cyclic fatigue resistance of 3 nickel-titanium (NiTi) endodontic instruments from ProTaper, WaveOne (WO), and Twisted Files (TF). Methods: Cyclic fatigue testing was conducted by operating instruments from ProTaper F2, WO 25.08, and TF 25.08. A total of 184 instruments were rotated in 4 curved artificial canals with different angles and radius of curvature. The time and cycles to failure were calculated. The data were compared for differences by using 2-way analysis of variance (P < .05). Results: In general, WO was the most resistant to fatigue failure of the tested instruments, and TF showed a higher number of cycles to failure than ProTaper. Conclusions: Reciprocating movement of WO showed a longer cyclic fatigue life than conventional rotary movement of TF and ProTaper. The new manufacturing twisting process of TF produced NiTi rotary instruments more resistant to fatigue than ProTaper instruments produced with the traditional NiTi grinding process. (J Endod 2012;38:1521-1524)

引用

页码：1521 / 1524

页数：4

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