The main objective of endodontic therapy is to eliminate infection from the root canal and the prevention of reinfection.2 The achievement of this goal depends on several factors:3
-elimination of surviving microorganisms in the root canal system through effective cleaning and shaping procedures -creation of a tight three-dimensional seal with an inert filling material
-blockage of any communication between the oral cavity and the periradicular tissue through a high quality coronal restoration
However,the variation of pulp cavity morphology, especially in multirooted …show more content…
studied 830 mandibular canines, and reported that 98.3% had only one root and of these 4.9% had two canals and one orifice, 1.2% had two canals and two orifices. Two canals and two roots were present in 1.7% of the cases.25 Hess (1921),26 Barrett(1925),27 Pucci and Rei (1944),28 Madeira et al. (1973),29 De Deuss (1982),30 all have described the case of one root and two canals. Bakianian Vaziri P et al. (2006) analyzed 100 canines and detected the presence of two radicular canals in 12% of the cases using stereomicroscope.31 His results are in accordance with those obtained by Kaffe I et al.(1985),32 who which showed a percentage of 13.75%, in a radiological study on 400 mandibular canines. Green D(1973) reported 13% in the analysis of 100 teeth.33 Pineda F and Kuttler Y (1972) found 18.5% of the mandibular canines having two canals through a study on 187 radiological images.34 Calişkan MK et al. (1995) studied 100 mandibular canines and reported the incidence being 19.5%.35 Holtzman L reported mandibular canine with three root canals.36
The objective of this case report was to describe the clinical management of three teeth with aberrant root canal morphology: a mandibular canine with two radicular canals, maxillary second premolar with three roots and root canals;and maxillary second molar with four roots and root canals,all of which are rare clinical occurrence in our