Brainscape's Knowledge GenomeTM

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


See full index

Operative > Test 2 > Flashcards

Test 2 Flashcards

1
Q

enamel rods are in what direction compared to dentin

A

perpendicular

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

how is the depth of a prep determined

A

thickness of enamel

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

what is the minimum depth of a prep

A

1.5 mm

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

how far must one drill into dentin to place an amalgam prep

A

0.5 mm

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

type of dentin that is reparative and is formed throughout ones lifetime

A

secondary dentin

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

laid down as a result to chemical or thermal trauma

A

tertiary dentin-called reparative dentin

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

how do pit and fissure caries spread

A

through enamel and dentin in a triangular base to base spread

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

where do caries spread

A

DEJ

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

which caries do you remove first? Second?

A

Peripheral caries first, caries above pulp last

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

what must always be removed near the DEJ

A

discoloration

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

slightly converging walls and dovetail locks are examples of what type of retention

A

primary

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

pins, slots, grooves and additional boxes are examples of what type of retention

A

secondary

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

dentin closest to pulp that doesnt usually have alot of bacteria and can remineralize is called

A

affected dentin

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

dentin that must be removed, high amount of bacteria, soft and scoops out easily is called

A

infected dentin

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

what is the amount of inorganic material in enamel

A

it has the most inorganic material

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

what is the amount of inorganic material in cementum

A

it has the least inorganic material

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
17
Q

what happens if you nick the enamel with at bur

A

you increase the chances of having a caries

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
18
Q

type of dentin laid down due to chemical or thermal trauma

A

tertiary dentin-reparative dentin

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
19
Q

what type of caries travel through enamel and dentin

A

pit and fissure caries

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
20
Q

this must be removed and dental tubules must be opened up for a composite or resin restoration

A

smear layer

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
21
Q

what increases pulp sensitivity

A

heat

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
22
Q

where are the most dentin tubules

A

near the pulp

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
23
Q

cementum near the cervical area and can regenerate

A

cellular cementum

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
24
Q

cementum near the apex area and cannot regenerate

A

acellular cementum

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
25
Q

list order of susceptability to caries?

A

enamel, dentin, pulp -most sensitive

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
26
Q

List principals of cavity prep (7)

A 
establish outline form, 
obtain resistance form, 
obtain retention form, 
Obtain Convenience Form
remove carious dentin, 
finish enamel walls and margins, 
prepare toilet of cavity prep
How well did you know this?
1
Not at all
2
3
4
5
Perfectly
27
Q

enamel rods must be supported by dentin. The initial outline form is determined by the depth and lateral extent of caries

A

first true second false

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
28
Q

Obtaining adequate observation, accessibility and ease of operation during preparation and restoration is called

A

Convinience form

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
29
Q

In a class 2 cavity prep an important retention form is

A

dovetail lock

30
Q

The line formed at the junction of the cut tooth structure and the uncut tooth structure on the outer most part of the tooth is which form

A

outline form

31
Q

The shape given to the preparation that enables the restoration and remaining tooth structure to withstand masticatory stress is which type of form

A

resistance form

32
Q

what area in the restoration Provides stable seating of restoration reducing fracture potential of remaining tooth structure

A

flat floor

33
Q

The shape or form of the cavity preparation that best permits the restoration to resist displacement through tipping or lifting forces during mastication and general use.


A

retention form

34
Q

the dovetail, retention grooves and additional boxes is an example of what form

A

retention form

35
Q

That shape of the cavity preparation that allows for adequate observation, accessibility and ease of operation in preparing and restoring the cavity

A

convinience form

36
Q

Peripheral caries removed first, Caries removal over pulp performed last is called what

A

removing remaining carious dentin

37
Q

Remove unsupported enamel, Location of the margin, Degree of smoothness required is what aspect of tooth prep

A

finishing enamel walls and margins

38
Q

Freeing all angles and surfaces of debris. May include placement of medications or materials to clean and/or dry the preparation, seal the dentinal tubules and provide pulpal protection. Also referred as preparation debridement.


A

Prepare toilet of cavity preparation

39
Q

what is Second number of enamel hatchet

A

with of blade in mm

40
Q

2 bur is what kind of bur

A

round

41
Q

Dental X rays are

A

electromagnetic radiations

42
Q

ID the type of radiograph used to ID interproximal caries at the highest image

A

bitewing

43
Q

Which type of restoration is the most radiopaque

A

amalgam

44
Q

A class IV caries requires restoration in which teeth

A

Incisal angle/edge requires restoration

45
Q

Minimum depth of an amalgam prep?

A

2.5 mm

46
Q

the density and diameter of dentin tubules increases where

A

toward the pulp

47
Q

what does a panoramic radiograph show

A

entire mouth

48
Q

what microorganisms are associated with the disease of caries

A

Lactobacillus

49
Q

appears as an ill defined wedge shaped radiolucency on the mesial or distal root surfaces near the CEJ of posterior teeth-these are not caries

A

cervical burn out

50
Q

X-rays show the whole tooth, from the crown to beyond the end of the root to where the tooth is anchored in the jaw.

A

periapical x ray

51
Q

what type of x ray shows details of the upper and lower teeth in one area of the mouth

A

bite wing x ray

52
Q

below what pH reduces mineralization

A

5.5

53
Q

cannot see thru the image, amalgams etc

A

radiopaque

54
Q

can see thru the image, cavity in enamel

A

radiolucent

55
Q

what is irregular shaped in an x ray on a tooth

A

fillings

56
Q

what is smooth shaped in an x ray on a tooth

A

crown

57
Q

non severe caries are

A

incipient caries

58
Q

dry mouth, or less saliva can cause what

A

caries

59
Q

thermal conductivity, heat during preparation, chemical toxicity and dehydration can cause harm to what tissue in tooth

A

pulp

60
Q

the material chosen for a prep dictates what

A

the type of the prep

61
Q

which class cavity will have the caries spread in a apex to base manner at the DEJ

A

Class V

62
Q

where would the caries be if an x ray exhibited a triangular configuration in the enamel

A

interproximal

63
Q

chances of caries increase interproximally with the recession of what two things

A

alveolar bone and gingival tissue

64
Q

what type of caries are imaged as a more definite,

saucer-shaped radiolucency, clinically appear brown and leathery

A

root caries

65
Q

Wearing away of tooth structure from the friction of a foreign object. can be observed on tooth as highly polished areas is called

A

attrition

66
Q

Superficial loss of tooth surface as a result of chemical process, usually from non-bacterial acids is called

A

erosion

67
Q

in what class of prep may there be extensions of the axial wall in a buccal lingual direction

A

class II

68
Q

rpm of hand piece should be no more than what speed

A

5000 rpm

69
Q

cutting a line angle so that it is not 90 degrees, smoothing of sharp angles may be required for composite but not amalgam restorations is called

A

beveling

70
Q

if there is a rounder shaped radiolucent area on a tooth as opposed to a triangular it is most likely what kind of caries

A

occlusal

71
Q

is that portion of the tooth that extends from the cementoenamel junction, or cervical line, to the incisal edge or occlusal surface.


A

anatomical crown

72
Q

is the portion of a tooth that is visible in the oral cavity. Relative to the tooth, it may include only part of the anatomic crown, or all of the anatomic crown and part of the root.


A

clinical crown

Operative (4 decks)

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