XIX National Congress and VI International of the Spanish Society of Conservative Dentistry

17-19, May 2012

Santiago de Compostela, Spain

Meeting Abstract

Sponsors: Sociedad Española de Odontología Conservadora (SEOC)

- Oral Presentation 25

TITLE: Fracture resistance of two new nickel-titanium instruments used in reciprocation motion: Reciproc versus WaveOne..

AUTHORS

Conde Pais, Jose¹

Fernández Millán, David¹

Rivas Mundiña, Berta¹

Varela Patiño, Purificación¹

Martín Biedma, Benjamín¹

1.-Unidad de PTD II USC

SOURCE: Med Oral Patol Oral Cir Bucal. 2012 August 1;17(Supplement2):S25.

* doi:10.4317/medoral.17643809

http://dx.doi.org/10.4317/medoral.17643809

ABSTRACT

Introduction: Recently 2 new brands of NiTi files have been marketed for use in a Reciprocating movement mode. The use of reciprocating movement was claimed to increase the resistance of nickel-titanium (NiTi) file to fatigue in comparison with continuous rotation. The purpose of this study was to compare the fracture resistance of these 2 files, Reciproc and WaveOne. Material and methods: Instrumentation was performed on 120 molar root canals with an angle of curvature greater than 30° using alternating rotation with or without preflaring. Groups A and B (Alternating rotation without preflaring), Groups C and D (Alternating rotation with preflaring). Results: The results indicate that instruments used with alternating rotation after preflaring have a lower fracture index compared with the alternating rotation group without preflaring. This difference was statistically significant (p < 0.05). Conclusions: As conclusions we can say that both systems have the same behavior against fracture.

KEYWORDS

Wave One, Reciproc, Reciprocation Motion, Fracture.