H. Wu

Shaping ability of progressive versus constant taper instruments in curved root canals of extracted teeth.

Y L Zheng, G B Yang, X D Zhou, 2007, International endodontic journal.

Three-dimensional morphological analysis of C-shaped canals in mandibular first premolars in a Chinese population.

B. Fan, J. Gutmann, W. Ye, 2012, International endodontic journal.

Shaping ability of progressive versus constant taper instruments in simulated root canals.

G B Yang, X D Zhou, H Zhang, 2006, International endodontic journal.