Micro-computed tomographic assessment of the shaping ability of the One Curve, One Shape, and ProTaper Next nickel-titanium rotary systems
- Author:
Pelin TUFENKCI
1
;
Kaan ORHAN
;
Berkan CELIKTEN
;
Burak BILECENOGLU
;
Gurkan GUR
;
Semra SEVIMAY
Author Information
- Publication Type:Research Article
- From:Restorative Dentistry & Endodontics 2020;45(3):e30-
- CountryRepublic of Korea
- Language:English
-
Abstract:
Objectives:This micro-computed tomographic (CT) study aimed to compare the shaping abilities of ProTaper Next (PTN), One Shape (OS), and One Curve (OC) files in 3-dimensionally (3D)-printed mandibular molars.
Materials and Methods:In order to ensure standardization, 3D-printed mandibular molars with a consistent mesiobuccal canal curvature (45°) were used in the present study (n = 18).Specimens were instrumented with the OC, OS, or PTN files. The teeth were scanned preand post-instrumentation using micro-CT to detect changes of the canal volume and surface area, as well as to quantify transportation of the canals after instrumentation. Two-way analysis of variance was used for statistical comparisons.
Results:No statistically significant differences were found between the OC and OS groups in the changes of the canal volume and surface area before and after instrumentation (p > 0.05). The OC files showed significantly less transportation than the OS or PTN systems for the apical section (p < 0.05). In a comparison of the systems, similar values were found at the coronal and middle levels, without any significant differences (p > 0.05).
Conclusions:These 3 instrumentation systems showed similar shaping abilities, although the OC file achieved a lesser extent of transportation in the apical zone than the OS and PTN files. All 3 file systems were confirmed to be safe for use in mandibular mesial canals.
