Stewart G G
University of Pennsylvania, Philadelphia, USA.
Oral Surg Oral Med Oral Pathol Oral Radiol Endod. 1995 Jun;79(6):764-8. doi: 10.1016/s1079-2104(05)80314-2.
Gaining entrance to calcified canals can be very difficult and at times impossible. With the aid of the EDTA-Urea preparation (RC-Prep, Premier Dental Products, Norristown, Pa.) and the surgical length contra-angle burs, the task can be facilitated. The use of the multipurpose probe reduces the problem of perforation. We may now be able to gain access and treat a greater number of calcified canals.