The Radix Entomolaris and Radix Paramolaris: An Endodontic Challenge

Abstract

Success of endodontic treatment depends on the proper identi-fication of all the canals, thorough chemomechanical preparation followed by three-dimensional obturation with hermetic seal. Failure of any of these steps may occur due to unusual tooth morphology. Usually mandibular molars have two roots with three canals but in few teeth, the number of roots and canals vary. The variation in the number of roots, if extra root located lingually called radix entomolaris (RE) or located bucally called radix paramolaris (RP). This article presents successful endo-dontic treatment of two mandibular frst molars with extra roots one is with radix entomolaris and other is with radix paramolaris, both of which are rare microstructures.

The Prevalence of Radix Paramolaris and Entomolaris in Mandibular Molar Teeth: A Retrospective Study

“…13,19 Its prevalence in the white (Caucasian) population has been reported to vary between 3.4% and 4.2%. 20 Few studies have reported the prevalence of RP. These studies reported that the incidence of radix paramolaris in mandibular molars is low and almost rare.…”

Radix entomolaris, an anatomical variation of mandibular molars: clinically relevant considerations

“…A greater prominence of the distolingual cusp, in combination with a cervical prominence or convexity, can indicate the presence of an extra root. 37 In relation to access, a quadrangular or trapezoidal opening can be chosen instead of the traditional triangular (Figures 2,3,4). According to the symmetry law, there is an equidistance between the orifice of the canal and the line traced from mesial to distal through the floor of the pulp chamber, so the use of another access would allow a greater field of view.…”

Endodontic management of radix entomolaris in second molar

“…[ 1 ] Lack of understanding of the root canal morphology and improper shaping and cleaning can lead to the flare-ups. [ 2 ]…”