Lecture 1- Intro

Question 1

dental arch

Answer 1

teeth, gingiva, and associated bone

Question 2

maxillary arch

Answer 2

the upper arch including the associated teeth

Question 3

mandibular arch

Answer 3

the lower arch and associated teeth

Question 4

which arch is the one that moves?

Answer 4

mandible

Question 5

how many permanent teeth?

Answer 5

32

Question 6

permanent dental formula

Answer 6

notation system that describes the number and order of permanent teeth

I 2/2 C 1/1 P 2/2 M 3/3

Question 7

anterior teeth include:

Answer 7

incisors (8)
canines (4)

Question 8

posterior teeth include:

Answer 8

premolars (8)
molars (12)

Question 9

how many deciduous teeth?

Answer 9

20

10 per arch: 4 incisors, 2 canines, 4 molars

Question 10

deciduous dental formula

Answer 10

the notation system which describes the number and order of primary teeth

I 2/2 C 1/1 M 2/2

Question 11

crown

Answer 11

covered with enamel
*hardest substance in the mouth

Question 12

root

Answer 12

covered with cementum
*one or more roots

Question 13

enamel

Answer 13

the dense hydroxyapatite surface of the crown

Question 14

dentin

Answer 14

the inner hard layer of the crown and root

Question 15

pulp

Answer 15

the vascular innervated portion of the tooth

Question 16

cementum

Answer 16

the outer layer of the root surface

Question 17

dentoenamel junction (DEJ)

Answer 17

junction of enamel and dentin layers

Question 18

cementoenamel junction (CEJ)

Answer 18

junction of enamel and cementum layers

Question 19

cervical line

Answer 19

synonymous w/ CEJ

junction of the anatomical crown and root

Question 20

clinical crown

Answer 20

the portion of the tooth that is visible in the mouth
*can differ due to health of gingiva

Question 21

anatomical crown

Answer 21

the crown above the CEJ

Question 22

facial (buccal/labial) surface

Answer 22

outermost surface towards cheek or lips

Question 23

lingual (palatal) surface

Answer 23

innermost surface toward the tongue or palate

Question 24

mesial surface

Answer 24

towards the median line

Question 25

distal surface

Answer 25

away from the median line

Question 26

incisal surface

Answer 26

the biting or incising edge of anterior teeth

Question 27

occlusal surface

Answer 27

the biting or chewing surface of posterior surface

Question 28

cusp

Answer 28

projection on a crown

Question 29

fossa

Answer 29

depression or concavity b/w cusps or ridges

Question 30

ridge

Answer 30

linear elevation on the surface of a tooth and is named according to its location

Question 31

cingulum

Answer 31

lingual crown projection on anterior teeth

Question 32

groove

Answer 32

line b/w the primary parts of a crown or root

Question 33

pit

Answer 33

pinpoint depression at the junction or termination of a groove

Question 34

lobe

Answer 34

primary center of development within a tooth

Question 35

mamelon

Answer 35

round projections of enamel on newly erupted teeth *incisal remnant of incisor development

Question 36

furcation

Answer 36

where root divides

Question 37

root apex

Answer 37

the opening in the root for entrance of the pulp

Question 38

pulp chamber

Answer 38

chamber containing dental pulp

Question 39

pulp horn

Answer 39

highest projection of pulp chamber within the crown

Question 40

pulp canal

Answer 40

inner portion of the root containing the dental pulp

Question 41

periodontium

Answer 41

the tissues that surround the teeth

Question 42

periodontium includes:

Answer 42

gingiva cementum alveolar bone periodontal ligament

Question 43

gingiva

Answer 43

covers the bone and surrounds the cervical portions of teeth

Question 44

gingiva can be divided into:

Answer 44

free gingiva attached gingiva interdental papilla

Question 45

alveolar mucosa

Answer 45

dark red; loose attachment to the underlying bone

Question 46

mucogingival junction

Answer 46

junction of the alveolar mucosa and gingiva

Question 47

free gingiva

Answer 47

closer to the tooth crown, not attached to the bone

Question 48

free gingival groove

Answer 48

separates attached gingiva from free gingiva

Question 49

interdental papilla

Answer 49

the triangular shaped gingiva that occupied the gingival embrasure

Question 50

gingival sulcus

Answer 50

space b/w tooth surface and narrow cervical collar of free gingiva *not seen visually, but can be evaluated with a periodontal probe

Question 51

periodontal ligament

Answer 51

surrounds tooth root and attaches tooth to alveolar bone

Question 52

alveolar bone

Answer 52

forms and supports tooth sockets *AKA alveolar process