James Prichard will be speaking on this subject on Saturday 28 April at the 2012 British Dental Conference and Exhibition, held at the Manchester Central Convention Complex.
Abstract
Successful root canal therapy relies on many factors, not least of all mechanical shaping. Traditionally stainless steel files were used, but the introduction of nickel titanium (NiTi) alloys significantly broadened the instrument design options available to the practitioner. NiTi has allowed manufacturers to produce larger more flexible instruments that can be used mechanically which speeds up canal preparation and reduces fatigue. However, they are relatively expensive and are susceptible to fracture. Recently the use of NiTi instruments in a reciprocating motion have been introduced which claim to reduce the fracture incidence, and negate the need for a glide path.
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References
Schilder H. Filling root canals in three dimensions. J Endod 1967; 32: 281–290.
Byström A, Sundqvist G . Bacteriological evaluation of the efficacy of mechanical root canal instrumentation in endodontic therapy. Scand J Dent Res 1981; 89: 321–328.
Byström A, Sundqvist G . Bacteriologic evaluation of the effect of 0.5 percent sodium hypochlorite in endodontic therapy. Oral Surg Oral Med Oral Pathol 1983; 55: 307–312.
Peters O A. Current challenges and concepts in the preparation of root canal systems: a review. J Endod 2004; 30: 559–567.
Davis R D, Marshall J G, Baumgartner J C . Effect of early coronal flaring on working length change in curved canals using rotary nickel titanium versus stainless steel instruments. J Endod 2002; 28: 438–442.
Stabholz A, Rotstein I, Torebinejad M . Effect of preflaring on tactile detection of the apical constriction. J Endod 1995; 21: 513–518.
Bauman M A. Nickel-titanium: options and challenges. Dent Clin N Am 2004; 48: 55–67.
Roane J B, Sabala C L, Duncanson M G . The “balanced force” concept for instrumentation of curved canals. J Endod 1985; 11: 203–211.
Southard D W, Oswald R J, Natkin R . Instrumentation of curved molar root canals with the Roane technique. J Endod 1987; 13: 479–489.
Weine F S, Kelly R F, Bray K E . Effect of preparation with endodontic handpieces on original canal shape. J Endod 1976; 2: 298–303.
Gared Y. Canal preparation using only one NiTi rotary instrument: preliminary observations. Int Endod J 2008; 41: 339–344.
De-Deus G, Barino B, Zamolyi R Q et al. Suboptimal debridement quality produced by the single-file F2 ProTaper technique in oval-shaped canals. J Endod 2010; 36: 1897–1900.
De-Deus G, Brandao M C, Barino B et al. Assessment of apically extruded debris produced by the single-file ProTaper F2 technique under reciprocating movement. J Endod 2010; 110: 390–394.
Gavini G, Caldeira C L, Akisue E, de Miranda Candeiro G T, Kawakami D A S . Resistance to flexural fatigue of reciproc R25 files under continuous rotation and reciprocating movement. J Endod 2012; online article available at http://dx.doi.org/10.1016/j.joen.2011.12.033 (accessed 26 March 2012).
Kim H C, Kwak S W, Cheung G S P et al. Cyclic fatigue and torsional resistance of two new nickel-titanium instruments used in reciprocation motion: Reciproc versus WaveOne. J Endod 2011; 38: 541–544.
Plotino G, Grande N M, Testorelli L, Gambarinin G . Cyclic fatigue of Reciproc and WaveOne reciprocating instruments. Int Endod J 2012; online article available at http://dx.doi.org/10.1111/j.1365-2591.2012.02015.x (accessed 26 March 2012).
De-Deus G, Souza E M, Barino B et al. The self-adjusting file optimizes debridement quality in oval-shaped root canals. J Endod 2011; 37: 701–705.
Peters O A, Paqué F . Root canal preparation of maxillary molars with the self-adjusting file: a micro-computed tomography study. J Endod 2011; 37: 53–57.
Paqué F, Al-Jadaa A, Kfir A . Hard-tissue debris accumulation created by conventional rotary versus self-adjusting file instrumentation in mesial root canal systems of mandibular molars. Int Endod J 2011; online article available at http://dx.doi.org/10.1111/j.1365-2591.2011.01991.x (accessed 26 March 2012).
de Gregorio C, Paranjpe A, Garcia A et al. Efficacy of irrigation systems on penetration of sodium hypochlorite to working length and to simulated uninstrumented areas in oval shaped root canals. Int Endod J 2012; online article available at http://dx.doi.org/10.1111/j.1365-2591.2011.01999.x (accessed 26 March 2012).
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Prichard, J. Rotation or reciprocation: a contemporary look at NiTi instruments?. Br Dent J 212, 345–346 (2012). https://doi.org/10.1038/sj.bdj.2012.268
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DOI: https://doi.org/10.1038/sj.bdj.2012.268
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