Abstract
Location, thorough debridement and disinfection and three-dimensional obturation of all the canals in the root of a diseased tooth normally ensure success of the endodontic therapy. Presented is the case of nonsurgical endodontic therapy of mandibular second premolar with aberrant root canal morphology.
 Keywords: Mandibular second premolar, aberrant root canal morphology, endodontic success.
Highlights
Thorough knowledge of root canal system makes root canal treatment more predictable
Vertucci et al reported that the mandibular second premolar is having an incidence of one root canal at the apex in 97.5% and two canals in 2.5% of the teeth studied.[6]
Preoperative radiographs taken at different angulations help in determination of the presence of additional canals
Summary
Thorough knowledge of root canal system makes root canal treatment more predictable. Understanding the presence of atypical root canal morphology contributes to success and overall prognosis of the endodontically treated tooth. Tzanetakis et al reported the incidence of two or more canals in the mandibular second premolar that ranged from 1.2 to 34%.7. Mandibular second premolar has two pulp horns, buccal higher than lingual and one canal. The present article elaborates non-surgical root canal therapy for an unusual occurrence of three canals in second mandibular premolar. A careful clinical examination revealed carious mandibular right second premolar and first molar tooth. Both 45 and 46 were not mobile and periodontal probing was within physiological limits. Radiographic examination (Figure 1 a) revealed proximal radiolucencies approaching pulp with 45 and 46 Both had three roots, and periapical radiolucency.
Sign-in/Register to view highlights & summary Sign-in/Register to access full text options 
Free) 
Talk to us
Join us for a 30 min session where you can share your feedback and ask us any queries you have
Schedule a call
