RESUMO
INTRODUCTION: 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. METHODS: 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. RESULTS: 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). CONCLUSION: 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.
