Brainscape's Knowledge GenomeTM

Browse over 1 million classes created by top students, professors, publishers, and experts.


See full index

Oral Biology Mod 3 > Enamel > Flashcards

Enamel Flashcards

You may prefer our related Brainscape-certified flashcards:
AP® Biology flashcards Biology 101 flashcards
1
Q

Mineral content of enamel by weight

A

96%

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
2
Q

Matrix content fro enamel by weight

A

1-2%

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
3
Q

Water content in enamel by weight

A

2%

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
4
Q

Mineral content in dentine by weight

A

70%

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
5
Q

Matrix content in dentine by weight

A

20%

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
6
Q

Water content in dentine by weight

A

10%

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
7
Q

Mineral content in cementum by weight

A

65%

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
8
Q

Matrix content in cementum by weight

A

23%

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
9
Q

Water content in cementum by weight

A

12%

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
10
Q

Mineral content in bone by weight

A

60%

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
11
Q

Matrix content in bone by weight

A

25%

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
12
Q

Water content in bone by weight

A

15%

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
13
Q

Mineral content in enamel by volume

A

85%

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
14
Q

Matrix content in enamel by volume

A

3%

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
15
Q

Water content in enamel by volume

A

12%

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
16
Q

What is enamel a product of

A

epithelial

17
Q

Enamel is 96% organic or inorganic?

A

inorganic

18
Q

Enamel thickness max

A

2mm

19
Q

Is enamel translucent

A

yes

20
Q

Is enamel vital or non-vital

A

non-vital

21
Q

Hardness of enamel

A

KHN 360-390

22
Q

Structure of hydroxyapatite

A

Ca10PO46OH2

23
Q

What is the structure of enamel?

A

tightly packed hydroxyapatite crystals

24
Q

Basic unit of enamel structure

A

enamel prism

25
Q

Where are enamel prisms visible?

A

ground sections and scanning electron micrographs of acid etched enamel

26
Q

Two parts of enamel prism (rod)

A

prism core and prism sheath

27
Q

What is in the enamel prism core

A

tightly packed hydroxyapatite crystals

28
Q

In the prism sheath are the crystals more or less tightly packed than the prism core

A

less tightly packed

29
Q

Enamel prism diameter

A

3-6 micrometer

30
Q

Enamel prisms path

A

follow path of ameloblasts 90 degrees to the ADJ

31
Q

What is gnarled enamel

A

at the cusps the prisms appear twisted around each other

32
Q

Name of incremental growth lines in enamel

A

Striae of Retzius

33
Q

Where is the Perikymata

A

shallow furrow where the striae reach the surface

34
Q

What are the Imbrication Lines of Pickerill

A

ridges between the perikymata

35
Q

What are enamel spindle

A

dentinal spindles in enamel

36
Q

Are enamel tufts hypomineralised or demineralised?

A

hypomineralised

37
Q

Clinical appearance of enamel caries

A

white spot lesion

38
Q

4 enamel lesion zones

A

Translucent zone, body of lesion, dark zone and surface zone

39
Q

Arrested caries changes in environment

A

plaque control and altered diet

Oral Biology Mod 3 (3 decks)

Brainscape helps you reach your goals faster, through stronger study habits.
© 2024 Bold Learning Solutions. Terms and Conditions