1. Effect of Working Length Measurement by Electronic Apex Locator or Digital Radiography on Postoperative Pain: A Randomized Clinical Trial 
Aysun Kara Tuncer, DDS, PhD, Müzeyyen Gerek, PhD 
Journal of Endodontics 
Volume 40, Issue 1, Pages (January 2014)
DOI: /j.joen
Copyright © 2014 American Association of Endodontists Terms and Conditions

2. Figure 1 Postoperative pain intensity distribution.
Journal of Endodontics  , 38-41DOI: ( /j.joen )
Copyright © 2014 American Association of Endodontists Terms and Conditions

3. Figure 2
Postoperative pain prevalence. EALG, electronic apex locator group; RG, radiographic group.
Journal of Endodontics  , 38-41DOI: ( /j.joen )
Copyright © 2014 American Association of Endodontists Terms and Conditions