2nd Class

Question 1

The \_\_\_\_\_ tooth Numbering System also 
called the ”British System" is a 
dental notation system for 
associating information to a specific 
tooth, commonly used in the United 
Kingdom.

Answer 1

Palmer

Question 2

Up to ____ months of acceleration or delay is within the normal range.

Answer 2

6 months

Question 3

What is the sequence of primary eruption?

Answer 3

A (mand), A (max), B, D, C, E

Question 4

The primary dentition is usually completed at ___ to _____ months.

Answer 4

24 to 30 months

Question 5

Arc dimensions can be explained as what 3 things?

Answer 5

• Circumference.
• Length.
• Width.

Question 6

When do the primary mand central incisors erupt?

Answer 6

8 months

Question 7

When do the primary mandibular Lateral central incisors erupt?

Answer 7

13 months

Question 8

When do the primary mand canines erupt?

Answer 8

20 months

Question 9

When do the primary mand 1st molars erupt?

Answer 9

16 months

Question 10

When do the primary mand 2nd molars erupt?

Answer 10

27 months

Question 11

When do the primary max central incisors erupt?

Answer 11

10 months

Question 12

When do the primary max lateral incisors erupt?

Answer 12

11 months

Question 13

When do the primary max canines erupt?

Answer 13

19 months

Question 14

When do the primary max 1st molar erupt?

Answer 14

16 months

Question 15

When do the primary max 2nd molars erupt?

Answer 15

29 months

Question 16

•The distance from the distal of the 2nd primary molar
on one side of the arch to that same surface on the
opposite side of the arch.

Answer 16

Arch Circumference (Perimeter)

Question 17

•The perpendicular distance from a point between the central incisors
to a line connecting the mesial contacts of the 1st permanent molars.

Answer 17

Arch Length(depth)

Question 18

•Transverse measurement from any tooth from one side to the other side is
considered as the arch width.
•Most of the time Inter-Canine Width is measured to evaluate any changes in
arch width.

Answer 18

Arch Width

Question 19

The \_\_\_\_\_\_\_\_ (which teeth) determine the location for eruption of 
the permanent teeth in the future.

Answer 19

second primary molars

Question 20

Are deviations in occlusion in the primary dent carried to perm dent? To a greater or lesser degree?

Answer 20

Yes; greater degree in perm teeth

Question 21

_____ is a common condition in the primary dentition and
constitutes a very important feature of the dentition as it is an
indicator of favorable development of permanent occlusion.

Answer 21

Spacing

Question 22

Perhaps lack of spacing suggests severe risk for ______ in the
permanent dentition.

Answer 22

crowding

Question 23

Spacing is more common in the max or mand ? and

spaces are observed more among boys or girls?

Answer 23

Max; boys

Question 24

The Permanent incisors are
considerably ____ than the
primary incisors.

Answer 24

larger

Question 25

This difference between the
amount of space needed and
the amount of space available
is called _______

Answer 25

Incisal Liability

Question 26

Incisal liability is about ___ mm in

the maxilla

Answer 26

7

Question 27

Incisal liability is about ___ mm in

the mandible

Answer 27

5 mm

Question 28

Spaces located between the lateral incisors and canines in the
upper arch and between the first molars and canines in the
lower arch are called _________

Answer 28

Primate Space.

Question 29

Where is the Primate Space in the maxilla?

Answer 29

Btwn primary lateral incisors and canines

Question 30

Where is the Primate Space in the mandible?

Answer 30

Between primary canine and 1st molar

Question 31

The relation between the _____ surfaces of the maxillary and mandibular
second primary molars is, one of the most important factors that
influence the future occlusion of the permanent dentition.

Answer 31

distal

Question 32

•When the distal surfaces of the upper and lower second primary
molars were in the same vertical plane in centric occlusion.

Answer 32

Flush terminal plane

Question 33

•When the distal surface of the lower second primary molar is more
distal to that of the upper in centric occlusion;

Answer 33

Distal step:

Question 34

•When the distal surface of the lower second primary molar is
more mesial to that of the upper in centric occlusion.

Answer 34

Mesial step: