Root completion of the mandibular first molar takes place by the age_______________?
(A) 7-8 years
(B) 8-9 years
(C) 9-10 years
(D) 10 – 11 years
The last primary tooth to be replaced by a permanent tooth is usually the_____________?
(A) Maxillary second molar
(B) Mandibular second molar
(C) Maxillary canine
(D) Mandibular canine
Calcification of permanent first molar usually begins in the_____________?
(A) Third month of intrauterine life
(B) In the sixth month of intrauterine life
(C) At birth
(D) In the third month of extra uterine life
The usual order of appearance of the primary teeth in the mouth is____________?
(A) Central incisors, first molars, lateral incisors, second molars, canines
(B) Central incisors, lateral incisors, canines, second molars, first molars
(C) Central incisors, lateral incisors, first molars canines, second molars
(D) Central incisors, lateral incisors, first molars second molars, canines
The first permanent tooth to erupt in the oral cavity is the_____________?
(A) Mandibular central incisor
(B) Mandibular first molar
(C) Maxillary central incisor
(D) Maxillary first molar
While charting the dentition of a child, the pedodontist finds that the following teeth are present in all the four quadrants; permanent central incisor , permanent lateral incisor , decidous cuspid , decidous first molar, decidous 2nd molar and permanent 1st molar. The eruptive pattern may be considered most nearly normal for a child aged_____________?
(A) 3-6 years
(B) 7-10 years
(C) 11-14 years
(D) 15- 18 years
Dentition of humans is_______________?
(A) Herbivorous
(B) Omnivorous
(C) Carnivorous
(D) None of the above
A child has 12 permanent and 12 decidous teeth, what is his age____________?
(A) 8½ years
(B) 11½ years
(C) 4½ years
(D) 13½ years
At birth the following teeth are calcifying____________?
(A) Primary incisors & first molar
(B) Primary canines & second molars
(C) Permanent canines
(D) Permanent 3rd molar
There are two normal children of the same age and sex. In one, all the permanent teeth except the third molars have erupted.In the other,no permanent canines or premolars have erupted. How old are these children ?
(A) 7 years
(B) 9 years
(C) 11 years
(D) 13 years