Oral Anatomy Quiz 4
1 / 50
A radiograph of 4- years old child reveals no evidence of calcification of mandibular second pre molar. This indicates______________?
2 / 50
The process of exfolitation of primary teeth is between_____________?
3 / 50
The primary centre of formation of each lobe is present in_____________?
4 / 50
Fourth canal is present in_____________?
5 / 50
Which four mandibular teeth are so aligned that when viewed from the occlusal, a straight line may be drawn bisecting the contact areas_____________?
6 / 50
Corner stones of dental arches are:
7 / 50
Dentin islands are frequently found in the root canals of which of the following permanent teeth ?
8 / 50
Maximum contact between occlusal surfaces, of maxillary and mandibular teeth occur during________________?
9 / 50
Over jet is defined as______________?
10 / 50
The contact area on the distal surface of a maxillary first premolar should be placed in________________?
11 / 50
What is the amount of time required by erupting premolar to move through 1 mm of bone as measured on a bite ? wing radigraph ?
12 / 50
On opening the mouth , if the jaw deviates to the right side, it indicates the paralysis of__________?
13 / 50
Contact areas of anterior teeth which are placed in centre of middle third ____________?
14 / 50
The most common sequence of eruption of the permanent maxillary teeth in children is_______________?
15 / 50
Which of the following muscles moves the condyle and articular disc anterior and downwards on glenoid fossa______________?
16 / 50
Which of the following is the largest root_____________?
17 / 50
The key to occlusion is_______________?
18 / 50
Depression of mandible is achieved by_______________?
19 / 50
Which of the following features of a permanent maxillary lateral incisor aids in distinguishing it from a mandibular lateral incisor ?
20 / 50
How many cusps does the crown of the maxillary first primary molar have ?
21 / 50
Root completion of the mandibular first molar takes place by the age_______________?
22 / 50
The maxillary molar crown of an early fossil primate featured a trigone made of three main cusps, these cusps were_____________?
23 / 50
The eruption are of maxillary permanent lateral incisor is_____________?
24 / 50
Eruption date of decidous maxillary 2nd molar is ______________?
25 / 50
The curvature of the cervical line of most teeth will be approximately____________?
26 / 50
Maxillary first molar has how many roots ?
27 / 50
Which of the following gives the best description of erupted permanent teeth typically seen in a 9- years old______________?
28 / 50
The sharpest cusp of primary first molar tooth is____________?
29 / 50
The largest permanent tooth in the mouth usually is_____________?
30 / 50
Temporo ? mandibular ligament is attached to _____________?
31 / 50
Distal contact of upper first premolar is________________?
32 / 50
The faciolingual angulation of the upper central incisor is approximately___________________?
33 / 50
Number of teeth seen on X- ray at birth_______________?
34 / 50
Once the enamel formation is complete, the tooth will erupt after approximately______________?
35 / 50
Mesial slope of buccal cusp is longer than distal slope in_________________?
36 / 50
In the intercuspal position, the lingual cusp of maxillary 2nd premolar contacts the______________?
37 / 50
The first macroscopic indication of morphologic development of primary incisors approximately at____________?
38 / 50
Lateral movement of condyle is caused by_____________?
39 / 50
Which of the following do not contribute to arch stability ?
40 / 50
The maxillary teeth which have single antagonist are__________?
41 / 50
The decidous canine emerges______________?
42 / 50
As compared to permanent tooth , root formation in primary tooth______________?
43 / 50
Which of the following teeth have more than one occlusal form____________?
44 / 50
Crown formation of all permanent teeth except third molars is completed between_____________?
45 / 50
Generally , contact areas between posterior teeth are located in which directions from the centr of the proximal surface ____________?
46 / 50
An imaginary occlusal curve that contacts the buccal and lingual cusp tips of mandibular buccal teeth is called the _____________?
47 / 50
If the pulp of a single rooted tooth canal were triangular in cross section with the base of the triangle located facially and the apex lingually with a longer mesial side than distal side; the tooth most likely is_____________?
48 / 50
Which of the following is true about calcification of teeth ?
49 / 50
Before eruption the position of permanent mandibular incisor buds relative to primary incisors is_____________?
50 / 50
In anxious parent calls you that her 5- month -old child has still no teeth in his mouth then you should_____________?
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