The permanent teeth  I. are of four types- incisors, canines, permolars and
Channel: Doubtnut
Date: 2020-05-03

The permanent teeth  I. are of four types- incisors, canines, permolars and molars.  II. Began to replace the milk teeth in the 6th year of age.  III. Are 32 and usually completed by 18-25 years.  IV. Are 20 in children  Choose the option with correct statement(s).