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Flashcards in Overview of Primary teeth Deck (28):
1

how many primary teeth?

20

2

what three annotations can be used?

universal: A-T
palmer: quadrant with letter A-E
FDI International: 5-8 with 1-5

3

Central Incisors eruption age?

6-8 months

4

Lateral Incisors eruption age?

7-9 months

5

First molar eruption age?

12-14 months

6

canine eruption age?

16-18 months

7

second molar eruption age?

20-24 months

8

Exfoliation of:
Central:
Lateral:
Canine:
First molar:
Second molar:

Man, Max
C: 6-7, 7-8
L: 7-8, 8-9
Canine: 10-12, 10-18
First molar: 9-10, 11-12
Second molar: 11-12, 10-12

9

Where is there no cervical ridge located at?

all surfaces except lingual of molars

10

Root sizes

longer, narrower and root trunk is nearly absent

11

color of tooth

whiter because thinner than enamel

12

which molar is bigger?

the second> first

13

enamel, dentin, and pulp characteristics

enamel and dentin are thinner
pulp is relatively large and the pulp horns are more accentuated especially the mesial of decidious molars

14

3 functions of primary dentition

1. maintain space
2. flared roots to prevent mesial drift
3. guide for permanent dentition

15

type traits of primary maxillary central incisors

no mamelons; wide m-D

16

type traits of primary canines

contacts are at the same level

17

type traits of primary molars

2nd looks like a permanent 1st molar

18

# of roots, and cusps in maxillary 1st molar (primary dentition)

roots-3
cusps-3-4

19

# of roots, and cusps in mandibular 1st molar (primary dentition)

roots-2
cusps-4

20

4 functions of dental curvature

1. stabilize arch
2. prevent disease (self cleansing)
3. disperse occlusal forces
4. protect soft tissues (symbionic relationship)

21

with an improper curvature what 3 possibilities can arise

1. premature tooth loss
2. periodontal problems
3. occlusal discrepancies

22

what is proximal contact areas?

defined as adjacent tooth surfaces that touch

23

what 2 things does proximal contact areas increase to?

1. due to attrition
2. toward posterior (back of mouth)

24

where are contact locations in the anterior and posterior teeth?

anterior: incisally placed=centered Facial-Lingual
posterior: usually middle 1/3 but more buccal of the center

25

two importances of food

1. food-prevent impaction
2. stabilization of the arch-synergy of stabilization
^^ most important

26

what are 2 outcomes from improper contacts?

1. gingivitis
2. alignment changes which will lead to bone and muscular changes and may destroy tooth structure and the support system

27

what shape of embrasures form around proximal contact?

V-shaped spaces

28

5 functions of embrasures

1. spillway escape for food
2. self-cleansing
3. protects gingiva
4. reflects tooth form
5. reduces occlusal trauma