Abstract
T he ultimate objective of endodontic therapy has been stated to be the obliteration of the prepared root canal space with an inert material in order to restore the integrity and state of good health of the treated tooth in the dental arch.l According to Ingle,2 the most common cause of endodontic failure is apical percolation, with the largest percentage of eases failing due to incomplete canal obliteration. Other reasons for failure in this category include leaving a canal completely unfilled and inadvertently removing a silver point. Quite often a canal is left unfilled because the operator has failed to recognize its presence. Rankine-Wilson and Henry3 and others 4p 5 have described the not uncommon finding of a bifurcated canal in mandibular incisors, cuspids, and premolars. Green6 gave an exhaustive description of the presence of auxiliary and secondary canals among all the teeth in the dental arch. Therefore, it is the obligation of those interested in endodontics to be thoroughly familiar with root canal anatomy, in both normal and abnormal situations, in order to keep this cause of endodontic failure to a minimum.
Published Version
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