MCQs of Oral Anatomy – Calcification and Eruption of Teeth

The last primary tooth to be replaced by a permanent tooth is usually the:

The most common sequence of eruption of the permanent maxillary teeth in children is:

Calcification of permanent first molar usually begins in the:

A radiograph of 4- years old child reveals no evidence of calcification of mandibular second pre molar. This indicates

The usual order of appearance of the primary teeth in the mouth is:

Generally in majority of children, the sequence of eruption of permanent teeth in mandible is:

The first permanent tooth to erupt in the oral cavity is the:

First evidence of initiation of primary dentition is usually around:

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:

Which of the following is dental formula of a 9 years old child:

Dentition of humans is:

Number of teeth seen on X- ray at birth:

A child has 12 permanent and 12 decidous teeth, what is his age:

Eruption date of decidous maxillary 2nd molar is :

At birth the following teeth are calcifying:

What is the amount of time required by erupting premolar to move through 1 mm of bone as measured on a bite – wing radigraph?

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?

Kalu, a 6- years – old child, received tetracycline. Noticeable discoloration will be seen in:

As compared to permanent tooth , root formation in primary tooth:

Calcification of third molar begins at:

A six- year molar begins to calcify at:

The time taken for primary tooth root completion after eruption:

Which of the following gives the best description of erupted permanent teeth typically seen in a 9- years old:

Calcification of all teeth except last molars are completed by:

Growth of all permanent teeth except last molars is completed by:

Once the enamel formation is complete, the tooth will erupt after approximately:

The root completion of permanent teeth is achieved after _______ years o eruption:

The correct dentition in a 9- years old child is:

Before eruption the position of permanent mandibular incisor buds relative to primary incisors is:

The decidous canine emerges:

Which of these teeth are highly sturdy and usually the last ones to be lost?

Calcification of roots of decidous teeth is completed by:

In the majority of situations, the first decidous tooth to erupt is the:

The eruption are of maxillary permanent lateral incisor is:

Primary canine erupts:

In anxious parent calls you that her 5- month -old child has still no teeth in his mouth then you should:

First evidence of calcification of maxillary permanent central incisors occurs at:

First permanent molars begin to calcify at :

Root completion of the mandibular first molar takes place by the age:

Maxillary primary cuspid enamel completion takes place at:

Beginning of eruption of permanent tooth starts:

The tooth bud for the third molar is initiated at about the age of:

In how many years, the central incisors erupt as permanent teeth?

The first macroscopic indication of morphologic development of primary incisors approximately at:

The teeth that are retained for the longest period of time are:

A new tooth is erupting in the mouth of a one and a half year old child. This tooth is most likely to be a decidous:

The process of exfolitation of primary teeth is between:

The first evidence of calcification of primary anterior teeth begins approximately between :

Which of the following is true about calcification of teeth ?