Unit 1

Question 1

Dental Arch

Answer 1

teeth, gingiva, and associated bone

Question 2

Does the mandible or maxillary arch move?

Answer 2

MANDIBLE ONLY

Question 3

Which teeth are primary teeth missing?

Answer 3

Premolars

Question 4

What is the crown covered with

Answer 4

Enamel

Question 5

What is the root covered with

Answer 5

Cementum

Question 6

Enamel

Answer 6

Dense hydroxyapatite surface of the crown

Question 7

Dentin

Answer 7

Inner hard layer of crown and root

Question 8

Pulp

Answer 8

Vascular innervated portion of the tooth

Question 9

Cementum

Answer 9

outer layer of root surface

Question 10

DEJ (Dentoenamel junction)

Answer 10

junction of enamel and dentin layers

Question 11

CEJ (cementoenamel junction)

Answer 11

junction of enamel and cement layers

Question 12

Cervical line

Answer 12

Junction of anatomic crown and root

Question 13

Clinical Crown VS Anatomical Crown

Answer 13

Portion of tooth that is visible in the mouth = clinical
Crown above the CEJ = anatomical

Question 14

Cusp

Answer 14

Projection on a crown

Question 15

Fossa

Answer 15

Depression between cusps or ridges

Question 16

Cingulum

Answer 16

Lingual projection on anterior teeth

Question 17

Groove

Answer 17

Line between primary parts of a crown or root

Question 18

Pit

Answer 18

Pinpoint depression at junction or termination of a groove

Question 19

Lobe

Answer 19

Primary center of development within a tooth

Question 20

Mamelon

Answer 20

Round projections of enamel on newly erupted teeth
Incisal remnant of incisor development
Think super rough incisal edges

Question 21

Furcation

Answer 21

Where root divides

Question 22

Root apex

Answer 22

Opening in the root for entrance of the pulp

Question 23

Pulp

Answer 23

Vascular innervated portion of the tooth

Question 24

Pulp chamber

Answer 24

Chamber containing dental pulp

Question 25

Pulp horn

Answer 25

Highest projection of pulp chamber within the crown

Question 26

Pulp canal

Answer 26

Inner portion of root containing the dental pulp

Question 27

Periodontium

Answer 27

Tissues that surround teeth (includes gingiva, cementum, alveolar bone, and periodontal ligament)

Question 28

3 sections of gingiva

Answer 28

Free gingiva, attached gingiva, and interdental papilla

Question 29

Alveolar Mucosa

Answer 29

Loose attachment to the underlying bone; dark red

Question 30

Mucogingival junction

Answer 30

Junction of alveolar mucosa and gingiva

Question 31

Free gingival groove

Answer 31

Separates attached gingiva from free gingiva

Question 32

Interdental papilla

Answer 32

Triangular shaped gingiva that occupies gingival embrasure

Question 33

Gingival sulcus

Answer 33

Space between tooth surface and narrow cervical collar of free gingiva (evaluated with periodontal probe)

Question 34

periodontal ligament (PDL)

Answer 34

surrounds tooth root and attaches tooth to alveolar bone (periodontal fibers)

Question 35

Alveolar boen

Answer 35

forms and supports tooth sockets

Question 36

Vermilion boder

Answer 36

sharp junction of red zone and skin

Question 37

Nasolabial groove

Answer 37

Demarcates lip and cheek

Question 38

Philtrum of lip

Answer 38

Middle of upper lip

Question 39

Labiomental groove

Answer 39

Indent under bottom lip on chin

Question 40

Labial/buccal frena

Answer 40

attachments of lips and cheeks to alveolus (bony area surrounding teeth)

Question 41

Sublingual folds

Answer 41

raised worlds where submandibular salivary ducts open

Question 42

Retromolar pad

Answer 42

space behind back molars that is elevated

Question 43

First sign of development is

Answer 43

6-7 weeks in utero

Question 44

Deciduous teeth begin to calcify at

Answer 44

13-20 weeks in utero

Question 45

ALl deciduous teeth have begun to calcify by

Answer 45

18-20 weeks in utero

Question 46

Deciduous teeth erupt at

Answer 46

6-30 months

Question 47

Succedaneous teeth

Answer 47

Permanent teeth that replace deciduous teeth

Question 48

Non-succedaneous teeth

Answer 48

Permanent teeth that do not replace deciduous teeth (maxillary first molars are a good example of this)

Question 49

In permeant teeth, root development is completed ____ after eruption of teeth

Answer 49

2-3 years

Question 50

In permanet teeth, what is the first part of tooth to calcify?

Answer 50

The crown

Question 51

Calcification of crown of teeth is completed when? (formula)

Answer 51

1/2 time of eruption and add 1 year