Shaping ability of ProTaper Universal, WaveOne and ProTaper Next in simulated L-shaped and S-shaped root canals

• DOI: 10.1186/s12903-015-0012-z
• Publication Date: 2015-02-28T11:34:26Z
• Authors: Hui Wu; Cheng Peng; Yulong Bai; Xin Hu; Lei Wang; Changyi Li
• Keywords: Apical constriction

The purpose of this study was to compare the shaping ability ProTaper Universal (PTU; Dentsply Maillefer, Ballaigues, Switzerland), WaveOne (WO; Maillefer) and Next (PTN; in simulated L-shaped S-shaped root canals respectively.30 30 resin blocks were employed randomly divided into 3 groups (n = 10), respectively. prepared a tip size 25 using PTU, WO or PTN: PTU F2 (taper 0.08 over first mm from apical tip), Primary PTN X2 0.06 tip). Photos taken pre- postinstrumentation. 2 layers superimposed after series image processing 10 points selected constriction with 1 interval. And then central axis transportation straightened curvature measured software analysis.In canals, caused less than at curved section (P < 0.05), least 0.05). Moreover, maintained canal best among But produced more straight compared In preserved coronal but there no significant difference since all files obviously.PTN showed better constriction. had tendency straighten multi-curved canals.