Restor Dent Endod.  2018 Feb;43(1):e10. 10.5395/rde.2018.43.e10.

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

• Özyürek
• Yılmaz K
• Uslu G
• Plotino G

• KMID: 2406095
• DOI: http://doi.org/10.5395/rde.2018.43.e10

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.

Keyword

Atomic force microscopy; Nickel-titanium; Usage; WaveOne; WaveOne Gold

MeSH Terms

Dental Pulp Cavity*
Microscopy, Atomic Force*
Molar
Porosity
Root Canal Preparation*
Tooth

Figure

• 

  Figure 1. Three-dimensional atomic force microscopy (AFM) image of WaveOne and WaveOne Gold instruments. (A) Intact WaveOne; (B) intact WaveOne Gold; (C) used WaveOne; (D) used WaveOne Gold.

Reference

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