In lateral mandibular incisors, what percentage is known to have two canals with only one ending in two foramina?

In lateral mandibular incisors, the occurrence of two canals with only one ending in two foramina is observed in a significant number of cases. Research studies in dental anatomy and endodontics have shown that approximately 40% of lateral mandibular incisors exhibit this anatomical variation. This is important for dental practitioners to recognize, as it can greatly influence endodontic treatment planning and execution. Understanding the typical canal morphology allows for more effective access and cleaning of root canals, ultimately leading to better treatment outcomes for patients.

The other percentages do not accurately reflect the prevalence found in the literature; thus, they do not align with observed data in studies of canal anatomy in lateral mandibular incisors.