The effect of root canal preparation on the surface roughness of WaveOne and WaveOne Gold files: atomic force microscopy study

다국어 초록 (Multilingual Abstract)

Objectives To examine the surface topography of intact WaveOne (WO; Dentsply Sirona Endodontics) and WaveOne Gold (WOG; Dentsply Sirona Endodontics) nickel-titanium rotary files and to evaluate the presence of alterations to the surface topography after root canal preparations of severely curved root canals in molar teeth.




Materials and Methods Forty-eight severely curved canals of extracted molar teeth were divided into 2 groups (n = 24/each group). In group 1, the canals were prepared using WO and in group 2, the canals were prepared using WOG files. After the preparation of 3 root canals, instruments were subjected to atomic force microscopy analysis. Average roughness and root mean square values were chosen to investigate the surface features of endodontic files. The data was analyzed using one-way analysis of variance and post hoc Tamhane's tests at 5% significant level.




Results The surface roughness values of WO and WOG files significantly changed after use in root canals (p < 0.05). The used WOG files exhibited higher surface roughness change when compared with the used WO files (p < 0.05).




Conclusions Using WO and WOG Primary files in 3 root canals affected the surface topography of the files. After being used in root canals, the WOG files showed a higher level of surface porosity value than the WO files.

참고문헌 (Reference)

1 Pirani C, "Wear and metallographic analysis of WaveOne and reciproc NiTi instruments before and afer three uses in root canals" 36 : 517-525, 2014

2 Elsaka SE, "Torsional and bending resistance of WaveOne Gold, Reciproc and Twisted File Adaptive instruments" 50 : 1077-1083, 2017

3 Yamazaki-Arasaki A, "Topography of four diferent endodontic rotary systems, before and afer being used for the 12th time" 75 : 97-102, 2012

4 Turker SA, "The efect of glide path on the surface quality of new and used rotary and reciprocating single fles: OneShape versus WaveOne" 36 : 608-613, 2014

5 Topuz O, "Structural efects of sodium hypochlorite solution on RaCe rotary nickel-titanium instruments: an atomic force microscopy study" 105 : 661-665, 2008

6 Kum KY, "Shaping ability of three ProFile rotary instrumentation techniques in simulated resin root canals" 26 : 719-723, 2000

7 Yang GB, "Shaping ability of progressive versus constant taper instruments in simulated root canals" 39 : 791-799, 2006

8 Caballero H, "Scanning electron microscopy of superfcial defects in Twisted fles and Reciproc nickel-titanium fles afer use in extracted molars" 48 : 229-235, 2015

9 Alapati SB, "Scanning electron microscope observations of new and used nickel-titanium rotary fles" 29 : 667-669, 2003

10 Alapati SB, "SEM observations of nickel- titanium rotary endodontic instruments that fractured during clinical use" 31 : 40-43, 2005

11 Cazaux J, "Recent developments and new strategies in scanning electron microscopy" 217 : 16-35, 2005

12 Hieawy A, "Phase transformation behavior and resistance to bending and cyclic fatigue of ProTaper Gold and ProTaper Universal instruments" 41 : 1134-1138, 2015

13 Hulsmann M, "Mechanical preparation of root canals: shaping goals, techniques and means" 10 : 30-76, 2005

14 Topcuoglu HS, "Laboratory comparison of cyclic fatigue resistance of WaveOne Gold, Reciproc and WaveOne fles in canals with a double curvature" 50 : 713-717, 2017

15 Plotino G, "Infuence of temperature on cyclic fatigue resistance of ProTaper Gold and ProTaper Universal rotary fles" 43 : 200-202, 2017

16 Pedulla E, "Infuence of continuous or reciprocating motion on cyclic fatigue resistance of 4 diferent nickel-titanium rotary instruments" 39 : 258-261, 2013

17 Gambarini G, "Fatigue resistance of engine-driven rotary nickel-titanium instruments produced by new manufacturing methods" 34 : 1003-1005, 2008

18 De-Deus G, "Extended cyclic fatigue life of F2 ProTaper instruments used in reciprocating movement" 43 : 1063-1068, 2010

19 Inan U, "Evaluation of the surface characteristics of used and new ProTaper Instruments: an atomic force microscopy study" 33 : 1334-1337, 2007

20 Fatma Y, "Evaluation of surface topography changes in three NiTi fle systems using rotary and reciprocal motion: an atomic force microscopy study" 77 : 177-182, 2014

21 Wever DJ, "Electrochemical and surface characterization of a nickel-titanium alloy" 19 : 761-769, 1998

22 Kosti E, "Efect of root canal curvature on the failure incidence of ProFile rotary Ni-Ti endodontic instruments" 44 : 917-925, 2011

23 Karatas E, "Efect of movement kinematics on the cyclic fatigue resistance of nickel-titanium instruments" 49 : 361-364, 2016

24 Trepanier C, "Efect of modifcation of oxide layer on NiTi stent corrosion resistance" 43 : 433-440, 1998

25 Plotino G, "Deformation and fracture incidence of Reciproc instruments: a clinical evaluation" 48 : 199-205, 2015

26 Sattapan B, "Defects in rotary nickel-titanium fles afer clinical use" 26 : 161-165, 2000

27 Pruett JP, "Cyclic fatigue testing of nickel-titanium endodontic instruments" 23 : 77-85, 1997

28 Pedulla E, "Cyclic fatigue resistance of two reciprocating nickel-titanium instruments afer immersion in sodium hypochlorite" 46 : 155-159, 2013

29 Ozyurek T, "Cyclic fatigue resistance of Reciproc, WaveOne, and WaveOne Gold nickel-titanium instruments" 42 : 1536-1539, 2016

30 Yao JH, "Cyclic fatigue of three types of rotary nickel-titanium fles in a dynamic model" 32 : 55-57, 2006

31 Gambarini G, "Cyclic fatigue of ProFile rotary instruments afer prolonged clinical use" 34 : 386-389, 2001

32 Plotino G, "Current assessment of reciprocation in endodontic preparation: a comprehensive review--Part II: properties and efectiveness" 41 : 1939-1950, 2015

33 Plotino G, "Blue treatment enhances cyclic fatigue resistance of vortex nickel-titanium rotary fles" 40 : 1451-1453, 2014

34 De-Deus G, "Blue thermomechanical treatment optimizes fatigue resistance and fexibility of the Reciproc fles" 43 : 462-466, 2017

35 Valois CR, "Atomic force microscopy study of stainless-steel and nickel-titanium fles" 31 : 882-885, 2005

36 Fayyad DM, "Atomic force microscopic evaluation of nanostructure alterations of rotary NiTi instruments afer immersion in irrigating solutions" 47 : 567-573, 2014

37 Walia HM, "An initial investigation of the bending and torsional properties of Nitinol root canal fles" 14 : 346-351, 1988

38 Gutmann JL, "Alteration in the inherent metallic and surface properties of nickel-titanium root canal instruments to enhance performance, durability and safety: a focused review" 45 : 113-128, 2012

39 Plotino G, "A review of cyclic fatigue testing of nickel- titanium rotary instruments" 35 : 1469-1476, 2009

40 Ferreira F, "A new method for the assessment of the surface topography of NiTi rotary instruments" 50 : 902-909, 2017

41 Plotino G, "A comparison of cyclic fatigue between used and new Mtwo Ni-Ti rotary instruments" 39 : 716-723, 2006