Answers are grounded in this paper and cite their sources.
The prevalence of multiple canals in mandibular first premolars was mainly of Type V, and mandibular second premolars had a low rate of canal variation in this western Chinese population. Root canal bifurcation occurred at the middle or apical third in most bicanal mandibular premolars. CBCT scanning can be used in the management of mandibular premolars with complex canal morphology.
No takes yet. Share an insight, caveat, or question.
Yu et al. (2012) studied this question.
Synapse has enriched 10 related papers. Consider them for comparative context: