Evaluation of Permanent Mandibular First Molars to Determine the Incidence of Three Roots and Four Canals in Iraqi Population

This study evaluates the incidence of three roots and four canals in the permanent mandibular first molars among the Iraqi population.A sample of 252 teeth was randomly selected and examined over two years.The results showed that 85.1% of teeth had two roots, while 14.9% had three roots.Additionally, 37.5% of the teeth had four canals, with a slightly higher prevalence among males than females.The study highlights the significance of understanding root canal morphology for successful endodontic treatments and suggests further studies to explore variations in different populations.