u/Electrical-Water6328

How common is it for a mandibular 2nd molar to have only one mesial and distal canal? Located these two yesterday, troughed around mesio bucally with ultrasonics but no luck with any canals where they should be. The two canals i found appear to fall in a straight line middlish of the tooth a clear developmental line between the two. It has two straight roots radiographically, pt doesnt want to pay privately for endo referral or cbct