Lecture 1 - Intro to dental morph

Question 1

what is included in the dental arch

Answer 1

teeth gingiva and associated bone

Question 2

what is the maxillary arch

Answer 2

the upper arch including the associated teeth

Question 3

what is the mandibular arch

Answer 3

the lower arch including the associated teeth

Question 4

which arch of the jaw moves

Answer 4

only the mandible

Question 5

how many permanent teeth are there

Answer 5

32

Question 6

what is the permanent dental formula

Answer 6

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

Question 7

what does the permanent dental formula describe

Answer 7

the number and order or permanent teeth

Question 8

what are the anterior teeth and how many of each

Answer 8

incisors (8) and canines (4)

Question 9

what are the posterior teeth and how many of each

Answer 9

premolars (8) and molars (12)

Question 10

how may deciduous teeth are there

Answer 10

20
- 8 incisors
- 4 canines
- 8 molars

Question 11

what is the decidous dental formula and what does it describe

Answer 11

describes the number and order of primary teeth
I 2/2 C1/1 M 2/2

Question 12

what covers the crown of the tooth

Answer 12

enamel

Question 13

what covers the root of the tooth

Answer 13

cementum

Question 14

what is enamel

Answer 14

the dense hydroxyapatite surface of the crown

Question 15

what is dentin

Answer 15

the inner hard layer of the crown and root

Question 16

what is pulp

Answer 16

the vascular innervated portion of the tooth

Question 17

what is cementum

Answer 17

the outer layer of the root surface

Question 18

what is the DEJ

Answer 18

dentoenamel junction
-junction of enamel and dentin layers

Question 19

what is the CEJ

Answer 19

cementoenamel junction
- junction of enamel and cementum layers

Question 20

what is the cervical line

Answer 20

junction of the anatomical crown and root

Question 21

what is the clinical crown

Answer 21

the portion of the tooth that is visible in the mouth

Question 22

what is the anatomical crown

Answer 22

the crown above the CEJ

Question 23

what is a cusp

Answer 23

projection on a crown

Question 24

what is a fossa

Answer 24

depression or concavity between cusps or ridges

Question 25

what is a ridge

Answer 25

linear elevation on the surface of a tooth, named according to location

Question 26

what is a cingulum

Answer 26

lingual crown projection on anterior teeth

Question 27

what is a groove

Answer 27

line between the primary parts of a crown or root

Question 28

what is a pit

Answer 28

pinpoint depression at the junction or termination of a groove

Question 29

what is a lobe

Answer 29

primary center of development within a tooth

Question 30

what are mamelons

Answer 30

round projections of enamel on newly erupted teeth that develop from lobes

Question 31

what is the root apex

Answer 31

the opening in the root for entrance of the pulp

Question 32

what is the pulp chamber

Answer 32

chamber containing dental pulp

Question 33

what is the pulp horn

Answer 33

highest projection of pulp chamber within the crown

Question 34

what is the pulp canal

Answer 34

inner portion of the root containing the dental pulp

Question 35

what does the periodontium include

Answer 35

-gingiva - cementum - alveolar bone - periodontal ligament

Question 36

what are the parts of the gingivia

Answer 36

-free gingiva - attached gingiva - interdental pulp

Question 37

what is alveolar mucosa

Answer 37

dark red, loose attachment to the underlying bone

Question 38

what is the mucogingival junction

Answer 38

junction of the alveolar mucosa and gingiva

Question 39

where is the free gingiva located

Answer 39

closer to the tooth crown, not attached to the bone

Question 40

where is the free gingival groove

Answer 40

separates attached gingiva from free gingiva

Question 41

what is the interdental papilla

Answer 41

the triangular shaped gingiva that occupies the gingival embrasure

Question 42

what is the gingival sulcus

Answer 42

space between tooth surface and narrow cervical collar of free gingiva

Question 43

what is the periodontal ligament

Answer 43

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

Question 44

what does the alveolar bone do

Answer 44

(alveolar proccess), forms and supports tooth sockets