primary_dentition_flashcards

Question 1

FDI numbering primary teeth: numbers 1-5 represent what?

Answer 1

1=Central incisor, 2=Lateral incisor, 3=Canine, 4=First molar, 5=Second molar

Question 2

What does the first digit in FDI primary tooth notation represent?

Answer 2

The quadrant of the dental arch

Question 3

FDI Quadrant 5 represents?

Answer 3

Maxillary Right (Primary)

Question 4

FDI Quadrant 6 represents?

Answer 4

Maxillary Left (Primary)

Question 5

FDI Quadrant 7 represents?

Answer 5

Mandibular Left (Primary)

Question 6

FDI Quadrant 8 represents?

Answer 6

Mandibular Right (Primary)

Question 7

Example: Maxillary right permanent central incisor number?

Answer 7

11

Question 8

Example: Maxillary left primary second molar number?

Answer 8

65

Question 9

Example: Maxillary left permanent lateral incisor number?

Answer 9

22

Question 10

Example: Mandibular right permanent second molar number?

Answer 10

47

Question 11

Example: Mandibular right primary canine number?

Answer 11

83

Question 12

When do primary max and mad incisors erupt?

Answer 12

6-9 months

Question 13

At what age does the first primary molar erupt?

Answer 13

Around 12 months help with grind

Question 14

When do primary canines erupt?

Answer 14

Around 16 months enable solid food eating

Question 15

When do second primary molars erupt?

Answer 15

Around 24 months enable solid food eating

Question 16

When does primary dentition exfoliation occur?

Answer 16

Between ages 6-13 years

Question 17

What do first and second primary molars get replaced by?

Answer 17

First and second premolars

Question 18

How many primary teeth are there?

Answer 18

20 (10 maxillary + 10 mandibular)

Question 19

Primary dentition formula?

Answer 19

DI 2/2 + DC 1/1 + DM 2/2 = 10 per arch

Question 20

Primary teeth function

Answer 20

chewing:- Enable grinding of food during early development

jaw growth:- Contribute to growth and development of jaws

speech:- Aid in speech articulation development

Question 21

Primary teeth maintain space for?

Answer 21

Eruption and alignment of permanent teeth

Question 22

Primary crowns compared to permanent?

Answer 22

Shorter inciso-cervically and wider mesio-distally

Question 23

Primary molars occlusal surface shape?

Answer 23

Narrow bucco-lingually

Question 24

Permanent molars occlusal surface shape?

Answer 24

Wider occlusal surface

Question 25

Cemento-enamel junction in primary teeth looks?

Answer 25

Bulging/cervical constriction

Question 26

Cervical bulge is most prominent where?

Answer 26

Mesiobuccal area of primary molars

Question 27

Primary tooth roots vs permanent?

Answer 27

More slender, longer relative to crown

Question 28

Primary molar roots divergence purpose?

Answer 28

Create space for developing permanent tooth germ

Question 29

Pulp of primary teeth compared to permanent?

Answer 29

Larger pulp chamber and longer pointed pulp horns

Question 30

Primary enamel thickness?

Answer 30

0.5 - 1.0 mm

Question 31

Permanent enamel thickness?

Answer 31

About 2.5 mm

Question 32

Primary enamel permeability?

Answer 32

More permeable and easily worn down

Question 33

Primary dentin thickness?

Answer 33

Thinner and less dense compared to permanent

Question 34

Primary tooth color?

Answer 34

Bluish white to ivory

Question 35

Permanent tooth color?

Answer 35

More yellowish white

Question 36

First primary incisors function?

Answer 36

Cutting food

Question 37

Primary canine function?

Answer 37

Tearing food

Question 38

Primary molars function?

Answer 38

Grinding food

Question 39

Mixed dentition age range?

Answer 39

Approximately 6 to 12 years

Question 40

Primary teeth life span relative to permanent

Answer 40

Shorter life span before exfoliation

Question 41

During early infancy, primary teeth remain where?

Answer 41

Within the jaws before eruption

Question 42

Diet during early primary dentition emergence?

Answer 42

Primarily liquids and semisolid foods

Question 43

What enables child to eat solid food?

Answer 43

Emergence of canines and second molars

Question 44

What happens during root resorption?

Answer 44

Primary enamel becomes less permeable

Question 45

Primary anterior crown shape from labial view?

Answer 45

Short, wide crowns

Question 46

Primary molar mesial aspect shows?

Answer 46

Bulging cervical constriction

Question 47

Dentinoenamel junction definition?

Answer 47

Boundary where dentin meets enamel

Question 48

Gingiva definition?

Answer 48

Soft tissue surrounding the teeth

Question 49

Why do primary roots taper?

Answer 49

To allow eruption of permanent successors

Question 50

Which teeth do not have primary predecessors?

Answer 50

Permanent molars

Question 51

Primary tooth appearance vs permanent?

Answer 51

Primary teeth appear whiter

Question 52

Bulk of pulp chamber in primary teeth?

Answer 52

Proportionally larger compared to crown

Question 53

Why careful cavity prep needed in primary teeth?

Answer 53

Thinner enamel and larger pulp horns increase risk of pulp exposure

Question 54

Occlusion begins with eruption of which primary teeth?

Answer 54

First primary molars

Question 55

How many incisors in primary dentition per quadrant?

Answer 55

Two: Central and Lateral

Question 56

How many molars in primary dentition per quadrant?

Answer 56

Two: First and Second molar

Question 57

How many canines in primary dentition per quadrant?

Answer 57

One