PC 12 Nickel-fitanium hand and engine-driven root canal preparations: a comparison study

Haller, Robert H.; Glosson, Charles R.; Dove, S. Brent; Rió, Carlos E. del

doi:10.1016/s0099-2399(06)80419-x

Cited by 4 publications

(1 citation statement)

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“…In this study it was evaluated mesial canals of lower molars, once these canals are representative of this kind of anatomy, are very difficult to prepare and became a huge challenge for mechanized instrumentation [8][9][10][11][12][13][14][15][16][17][18][19][20] .…”

Section: Discussionmentioning

confidence: 99%

Influence of the rotary and/or oscillatory reciprocating systems in the morphological changes of narrow and curved molar root canals anatomy

Rosa¹,

Dametto²,

Gadê-Neto³

et al. 2012

Rev. odontol. UNESP

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OBJECTIVE: This study evaluated four mechanized Endodontic systems, ProTaper Universal, K3 Endo, Twisted file (rotary) and the oscillatory reciprocating system Endo - Eze TiLOS, in order to verify and measure alterations in original anatomy with deviations at cervical, medium and apical root canal thirds. MATERIAL AND METHOD: It was used MB root canals of 60 extract human lower molars, to produce a line of severe angles, according to the classification of Schneider. Samples were included in Ester vinyl resin, mounted in the Teflon Furnace, transversally sectioned at the cervical, middle and apical thirds, which were subsequently photographed using a digital camera Cyber Shot DSC-TX10,attached to an operating microscope 3101XY DFVasconcelos with 40× magnification in order to measure the anatomical transversal area of the root canal, using the software AutoCAD 2008, comparing pre and post-instrumentation. All samples assembled in the Furnace also were submitted to x-ray in a standardized way to enable the comparison of the angle of Schneider pre-and post-instrumentation. Once collected the data, they were compared statistically using the program BioEstat 5.0. RESULT: The analysis of the results showed that in the cervical third, rotary systems were more effective than Endo-Eze TiLOS System with statistically significant differences (p ≤ 0,05). Apical and middle third changes in anatomy were similar, but apically, the ProTaper system caused more deviations when comparing the angle of Schneider,and areas before and after instrumentation(p ≤ 0,05). CONCLUSION: It was concluded that all the systems caused alteration in the original anatomy of the root canal when parameters as angle of Schneider and areas before and after preparation were used.

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Section: Discussionmentioning

confidence: 99%

Influence of the rotary and/or oscillatory reciprocating systems in the morphological changes of narrow and curved molar root canals anatomy

Rosa¹,

Dametto²,

Gadê-Neto³

et al. 2012

Rev. odontol. UNESP

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Morphometric video analysis of the engine-driven nickel-titanium lightspeed instrument system

Marsicovetere¹,

Clement²,

Rió³

1996

Journal of Endodontics

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Root canal instruments for manual use: a review

Schäfer

1997

Dental Traumatology

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Root canal instruments can be subdivided into instruments made of different alloys (stainless steel, nickel-titanium and nickel-aluminium) and instruments with different geometric forms (e.g., instruments with short cutting segments). Several types of stainless steel and titanium-based instruments are presented and assessed by a review of the current literature. In summary, flexible stainless steel instruments with noncutting tips seem to be a decisive improvement in the development of an ideal root canal instrument. They are superior to titanium-based instruments in both cutting efficiency and instrumentation of curved root canals.

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PC 12 Nickel-fitanium hand and engine-driven root canal preparations: a comparison study

Cited by 4 publications

References 0 publications

Influence of the rotary and/or oscillatory reciprocating systems in the morphological changes of narrow and curved molar root canals anatomy

Influence of the rotary and/or oscillatory reciprocating systems in the morphological changes of narrow and curved molar root canals anatomy

Morphometric video analysis of the engine-driven nickel-titanium lightspeed instrument system

Root canal instruments for manual use: a review

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