Root Canal Transportation after Root Canal Preparation with ProTaper Next, WaveOne Gold, and Twisted Files

Abstract

Background: Root canal preparation during endodontic treatment may be associated with various complications, including a change in the original pathway of the root canal lumen. The aim of our study was to determine whether files of similar sizes that use various movement kinematics (rotary, reciprocal, adaptive motion) cause root canal transportation, and whether the differences between such systems are statistically significant. Methods: The degree of root canal transportation (DT) was calculated with the use of computed tomography scans for 3 groups of teeth (for each group: n = 20) in which the root canals were prepared using either rotary (ProTaper Next—PTN), reciprocal (WaveOne Gold—WOG), or adaptive movement (Twisted Files—TF) instruments. Results: For rotary ProTaper Next instruments, the mean value of the DT index was 0.0795 (SD = 0.0179) for 3 mm from the apex, 0.09 (SD = 0.0262) for 6 mm from the apex, and 0.106 (SD = 0.0221) for 9 mm from the apex. For reciprocal WaveOne Gold Primary instruments, the mean value of the DT index was 0.0355 (SD = 0.015) for 3 mm from the apex, 0.061 (SD = 0.02) for 6 mm from the apex, and 0.08 (SD = 0.25) for 9 mm from the apex. For Twisted Files, the mean value of the DT index was 0.05 (SD = 0.03) for 3 mm from the apex, 0.092 (SD = 0.17) for 6 mm from the apex, and 0.08 (SD = 0.02) for 9 mm from the apex. Conclusions: The use of PTN, WOG, and TF files resulted in root canal transportation to a different degree. The use of rotary PTN files produced the most transported preparation, whereas the use of WOG files produced the conservative root canal preparation that allowed the retention of the original shape of the root canal.

Apical Extrusion of Debris during Root Canal Preparation with ProTaper Next, WaveOne Gold and Twisted Files

“…Root canal treatment procedures constitute a significant part of dental treatment provided worldwide, and allow patients to retain their natural dentition with a success rate similar to implant placement procedures [ 1 , 2 ]. However, various complications may occur during its all stages, including perforation, change in the original path of the root canal, instrument fracture, all of which may make it impossible for the clinician to achieve the primary aim of treatment, i.e., infection control and disinfection of the root canal space [ 3 , 4 ]. Apical extrusion of debris is another example of such complication, and it has been proven to be an unavoidable occurrence during endodontic treatment by numerous authors since the methodology for measuring the amount of extruded material was introduced by Myers and Montgomery in 1991 [ 5 ].…”

Shaping Ability of Three Different Rotary Nickel Titanium Systems An In Vitro Study

“…This result agrees with Gajoum et al (2021) 3 who found that PTN was statistically significantly greater than WOG system in terms of canal transportation. Also, Eliasz et al (2020) 30 who found that PTN produced more transported canal preparation when compared with WOG and twisted file. This increase in transportation could be due to the metallurgical features of the file; M-wire does have more file memory compared to WOG thus straightening the canal more.…”

Fracture resistance of endodontically treated teeth bleached with extract of Spirulina Algae

“…After preparation, irrigation with 5 ml of ethylenediaminetetraacetic acid (EDTA) in concentration of 17% for 60 seconds was performed for debris removal. (17) Afterwards, obturation with gutta-percha and root canal sealer (MetaBiomed resin sealer) was done using lateral condensation technique. A heated plugger was then used to remove two millimetres of the filling at the area below the cementoenamel junction and then covered with 1 mm thick resinmodified glass-ionomer cement (GC-FUGI, Tukyo, Japan) for cervical seal.…”