Dentition

Question 1

label the skull bones - see canvas pp diagram:

Question 2

What are the bones of the jaw?

Answer 2

Mandible = Lower jaw
-Maxilla = upper jaw

Question 3

Label the tooth - see canvas pp diagrams:

Question 4

How is the tooth divided?

Answer 4

-crown: outermost layer of enamel; hardest layer of tooth. enamel = surface. dentine = mineralised structure inside enamel.
-neck: cementum = continuity of the enamel. cementum is hard, outermost layer protects the overall structure. dental pulp is B for dental health - contains vessels and nerves.
-root: root canal = where blood & innervation are going to inside of tooth. to supply nutrients + nerve support. alveolar bone = part of alveoli, region on maxilla and mandible where tooth = attached.

Question 5

Where is the gingiva + what does it contain?

Answer 5

between each of the teeth; full of nerves and blood vessels

Question 6

What is the crown?

Answer 6

outermost layer of tooth

Question 7

What is the enamel?

Answer 7

outermost layer of crown

Question 8

Label the upper and lower teeth + skull - see canvas pp diagram:

Question 9

How many teeth do we have?

Answer 9

Total 32 teeth

Question 10

How many of each category of tooth do we have?

Answer 10

Incisors: 8
Canines: 4
Premolars: 8
Molars: 12

Question 11

Label the upper and lower permanent teeth - see canvas pp diagram:

Question 12

label the individual teeth - see canvas pp digram:

Question 13

Label the dental arch - see canvas pp diagram:

Question 14

Label the upper (maxillary) dental arch and lower (mandibular) dental arch - see canvas pp diagram:

Question 15

What is the upper dental arc also known as?

Answer 15

upper (maxillary) dental arch

Question 16

What is the lower dental arc also known as?

Answer 16

lower (mandibular) dental arch

Question 17

What is the labial part of the dental arch?

Answer 17

facing towards the inner
lips (incisors and canines)

Question 18

What is the buccal part of the dental arch?

Answer 18

facing towards the cheek
(premolars and molars)

Question 19

What is the lingual part of the dental arch?

Answer 19

facing towards the tongue

Question 20

What are the surfaces for mastication within the dental arch?

Answer 20

incisal surfaces (incisors)
occlusal surfaces (molars)

Question 21

What is the mesial part of the dental arch?

Answer 21

surface on the tooth that
lies closest to the midline.

Question 22

What is the distal part of the dental arch?

Answer 22

surface of the tooth that
lies further from the midline

Question 23

What is the main function of the incisors?

Answer 23

cutting food

Question 24

What do the canines do?

Answer 24

work with premolars to tear the food apart (second step after food is cut)

Question 25

What do the molars do?

Answer 25

Grind food

Question 26

Label the dental charting - see canvas pp diagram:

Question 27

What is the distal surface?

Answer 27

furthest away point from midline (of teeth).

Question 28

What is the medial surface?

Answer 28

Closest point to midline (of teeth).

Question 29

Label the dental charting outlined by Palme's tooth numbering system - see canvas pp diagram:

Question 30

Label the dental development - see canvas pp diagram:

Question 31

What is deciduous dental development?

Answer 31

Primary dental development in childhood - usual age of eruption

Question 32

What are the first teeth to emerge?

Answer 32

Lower central incisors are the first to emerge. These emerge 6-10 months

Question 33

Which are the next teeth to develop?

Answer 33

-1st molars and canines (15-21 months) -2nd molars (<24 months).

Question 34

By <24 months, how many teeth do we have?

Answer 34

Total: 20 (10 teeth in each arch)

Question 35

Which teeth are NOT present by By <24 months?

Answer 35

*no premolar or 3rd molars*

Question 36

Label the upper right and left quadrants of the dental charting deciduous - see canvas pp diagram:

Answer 36

-UPPER RIGHT QUADRANT: 8 7 6 5 4 3 2 1 E D C B A -UPPER LEFT QUADRANT 1 2 3 4 5 6 7 8 A B C D E

Question 37

Label the lower right and left quadrants of the dental charting deciduous - see canvas pp diagram:

Answer 37

-LOWER RIGHT QUADRANT 8 7 6 5 4 3 2 1 E D C B A - LOWER LEFT QUADRANT 1 2 3 4 5 6 7 8 A B C D E

Question 38

How many teeth are we born with?

Answer 38

None

Question 39

When do teeth start to develop?

Answer 39

6 months onwards

Question 40

Label the dental charting deciduous using the planer notation system (primary teeth): Maxillary arch and Mandibular arch, all 4 quadrants - see canvas pp diagram:

Question 41

Label the upper and lower teeth - see canvas pp diagram:

Question 42

Label the anterior few of the teeth - see canvas pp diagram:

Question 43

What are the first adult teeth emerging?

Answer 43

molars, 6-7 years old

Question 44

Which teeth emerge later in life (adult dentition)- even after 18 years old?

Answer 44

Wisdom teeth

Question 45

What is normal dental occlusion?

Answer 45

upper teeth are slightly in front of lower teeth

Question 46

What is class II malocclusion?

Answer 46

upper teeth are too far in front of lower teeth

Question 47

What is class III malocclusion?

Answer 47

upper teeth are behind lower teeth

Question 48

What is occlusion and malocclusion?

Answer 48

Alignment between upper and lower jaw => malocclusion = misalignment - difference in alignment is too pronounced.

Question 49

Label the innervation of teeth - see canvas pp diagrams:

Question 50

What nerve innervates teeth?

Answer 50

Trigeminal nerve - nerve number 5 (NB be familiar with this nerve - NB for face)

Question 51

What are the main branches innervating the tooth?

Answer 51

-maxillary branch = innervating upper dentition -mandibular branch= innervating the mandibular - lower dentition

Question 52

Label the innervation of teeth with nerves + smelling thing divided into upper and lower - see canvas pp diagrams:

Question 53

What are supernumerary teeth?

Answer 53

You have another line of teeth emerging in your dentition - only happens at level of upper jaw. dental condition - related to developmental disorder.

Question 54

What is microdontia?

Answer 54

Dental condition - related to neurodevelopmental disorder - Down syndrome: teeth too small.

Question 55

What is periodontitis?

Answer 55

dental name for gum disease. due to poor hygiene, bacteria eating away at gums. leads to bleeding + eating away at alveoli part of gums