A Rare Occurrence of Bilateral Single-Rooted Mandibular First Molar

Table 1

Case reports of mandibular first molars showing single canal.

Study	Tooth	Anatomical variation	Remarks
Metgud et al. [18]	36	Single conical root without any bifurcation	Taurodont with apical split
Ionnidis et al. [16]	36, 37, 47	Single root with a single root canal	Maxillary 16, 17, and 27 also showed the similar single root and root canal anatomy
Sooriaprakas et al. [17]	36	Single root with a single root canal	46 was extracted
Munnavali et al. [19]	46	Single root with a single root canal	47 also showed the similar single canal anatomy
Present study	36, 46	Single root with a single root canal	37 and 47 also showed the similar single canal anatomy