Tang, M P <br/><br/>
The effect of hand, sonic and ultrasonic instrumentation on the shape of curved root canals.  [electronic resource] 

 -  International endodontic journal  Mar 1989 
 - 55-63 p.  digital 
<br/><br/> Publication Type: Comparative Study; Journal Article 
<br/><br/><label>ISSN: </label>0143-2885 
<br/><br/><label>Standard No.: </label>10.1111/j.1365-2591.1989.tb00507.x  doi 
<br/><br/><label>Subjects--Topical Terms: </label><br/>Dental Pulp Cavity--anatomy & histology<br/>Humans<br/>Root Canal Therapy--instrumentation<br/>Ultrasonic Therapy--instrumentation