[Root anatomy and root canal morphology of mandibular canines in Israeli population]

Furcated root and root canal separation are anatomic variations of mandibular canines. Other studies found that up to 20% of mandibular canines have root canal separation and up to 6.8% are bifurcated teeth. The purpose of this study was to investigate the prevalence of two-rooted mandibular canines and the root canal morphology of mandibular canines.

A total of 1,020 Israeli patients' cone-beam computed tomography (CBCT) scans were screened and evaluated. A total of 1,981 mandibular canines were examined and the prevalence of furcated mandibular canines and root canal separation was recorded and analyzed.

The overall prevalence of furcated mandibular canines and root canal separation in mandibular canines were 1.9% and 10.3% respectively. The bilateral prevalence of furcated mandibular canines was 22.5%. Statistically significant difference was detected by the side of occurrence (left vs right side, p < 0.05) and by gender in right mandibular canine (p < 0.05).

the prevalence of furcated roots and root canal separation in mandibular canines was not frequent. Clinicians should be aware of the special characteristic of those anatomic variations.