ABSTRACT
Maxillary first premolar is a bi-rooted tooth with several variations in the root canal morphology. Usually it has 2 canals, however at times there could be an additional third canal present which could easily be missed by the clinician owing to lack of awareness and knowledge about the canal variations. Awareness of internal and external anatomy of tooth and also about its variations are essential for successful endodontic therapy. Prevalence of three canals in maxillary premolar is very low. This case report describes the endodontic management of permanent maxillary premolars with three root canals.
ABSTRACT
Taurodontism is a dental anomaly caused due to the failure of Hertwig's epithelial sheath to invaginate at the proper horizontal level. A huge pulp chamber, displacement of the pulpal floor apically, and no constriction at the level of the cementoenamel junction are the key features representing a taurodontic tooth. This condition is most commonly associated with permanent molars. This clinical entity occurs in the form of an isolated, singular trait in majority of the cases. However, seldom, it may be associated with syndromes or ectodermal anomalies. The large and deep pulp chamber makes instrumentation of canals difficult, thereby challenging an endodontist. This case report describes the endodontic challenge faced in cases of taurodontism as well as the clinical steps involved in its successful endodontic management. Furthermore, it shows the typical presence of bilateral hypertaurodontism with respect to the maxillary first molar.