text: An<unk>  is a condition of teeth where<unk>  is found on locations where<unk>  is not supposed to be, such as on a root surface.  They are found usually in the area between roots, which is called a furcation, of molars.<unk> s are not common in teeth with a single root.
option_0: Enamel pearl
option_1: Keratoconus
option_2: Onychophosis
option_3: Nevus of Ota
option_4: Acrochordon
option_5: Halo nevus
option_6: Linitis plastica
option_7: Formothion