How many roots does an incisor have (upper or lower)? – One.
How many roots does a canine have (upper or lower)? – One.
How many roots does an upper premolar have? – One or two.
How many roots does a lower premolar have? – One.
How many roots does an upper molar have? – Three.
How many roots does a lower molar have? – Two.
Dr. Banić