Unusual Maxillary First Molars with C-Shaped Morphology on the Same Patient: Variation in Root Canal Anatomy

<div>(a) Visualization of the oval orifice of the MB canal (arrow). (b) Distal circular orifice and ribbon palatal orifice separated by a deep isthmus (arrow). (c) Isthmus shaped using sonofile.</div>

Case Reports in Dentistry

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Figure 5

Figure 5: Unusual Maxillary First Molars with C-Shaped Morphology on the Same Patient: Variation in Root Canal Anatomy 