Brainscape's Knowledge GenomeTM

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


See full index

indirect Restoration > 9/27 Recorded Lecture: Tissue Management & Recording Impressions > Flashcards

9/27 Recorded Lecture: Tissue Management & Recording Impressions Flashcards

1
Q

TF? Elastomeric material that has set remains elastic.

A

T

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

What to include in crown impression

A

Adjacent teeth and tissue surrounding those teeth

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

All elastomeric material are hydrophobic except:

A

polyethers

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

Means to increase sulcus size to take impressions:

A

mech, chem, or surgical

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

These can lead to permanent soft tissue damage, ie recession:

A

improper manipulation of impression material, poor tissue displacement technique

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

3 prerequisites to successful impression taking:

A

healthy tissue, saliva control, …

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

Ways to maintain tissue health:

A

control pd, careful prep, interim resto

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

Methods of saliva control:

A

cotton rolls placed by ducts, moisture absorbing cards, flange-type evacuator, e.g., Svedopter (speejector), retractors), la, anti-sialagogic meds

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

Antisialogogic meds:

A

ABCH: atropine, bromide, clonidine, hypochloride

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

How does la effect saliva control?

A

blockage of impulses from the pdl, considerable reduction

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

Sulcus will remain open this long after cord removal/ mechanical retraction:

A

30s

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

how to surgically remove small amts of tissue:

A

scalpel, electrosurgery or laser

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

What is being stretched cord placement?

A

periodontal circumferential fibers

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

Means of tissue displacement w impregnated cord:

A

mechanico-chemical retraction

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

Cord placement is easier using:

A

braided or knitted cord

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

How long to leave cord in and when to take out:

A

5 min, directly before taking the impression

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

3 types of cords

A

BTK: braided twisted, and kneaded

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

Cord types for mech displacement:

A

twisted, knitted

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

Cord is impregnated with:

A

epi or aluminum potassium sulfate

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

Alternative to cord packing:

A

paste system, contains aluminum chloride

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

2 names for cord without chemical:

A

plain, non-impregnated

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

One cord remains in sulcus when using this technique:

A

double cord technique

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

List the 5 cord thicknesses:

A

000, 00, 0, 1, 2

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

What determine the size cord to use?

A

sulcus depth, tooth location

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

Benefit of twisted cord:

A

can customize cord, ind strands can be removed

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

Issue w using braided cord:

A

can double up and bc too thick & cause gingival trauma

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
27
Q

compressible cord type:

A

knitted

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

Cord types we use in clinic:

A

braided and knitted

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

Classifications of chemicals used to displace gingiva:

A

astringents, vasoconstrictors

30
Q

Ex’s of astringents;

A

aluminum chloride (AlCl3), ferric sulfate (Fe2(SO4)3

31
Q

vasoconstrictors:

A

sympathomimetic (effects similar to sym system) amine-containing eye wash/ epi

32
Q

2 ways vasocs restrict blood flow:

A

decreases cap size, tissue fluid seepage

33
Q

Issue epi cord can cause:

A

tachycardia

34
Q

Don’t use epi cord for these pts:

A

high BP, diabetes, cv disease, and hyperthyroidism

35
Q

Moa of astringent:

A

transient ischemia shrinking gingiva, tissue fluid leakage

36
Q

Are astringents acidic or basic?

A

acidic

37
Q

What to be aware of when using astringent:

A

if adhesive cement is used for restoration, minimize contact with tooth, affect smear layer

38
Q

Hemodent pH:

A

1.2

39
Q

Astrigident pH

A

0.7

40
Q

Least acidic astringent we use at SDM

A

Viscostat:

41
Q

packing cord:

A

cord should not overlap

42
Q

Which cord is impregnated w astringent in the double cord tech?

A

2nd, larger

43
Q

1st cord is called __, 2nd cord is called __:

A

preparation cord, impression cord

44
Q

Where to start cord placement:

A

interproximal area, deeper sulcus

45
Q

Ex of paste for tissue displacement:

A

expasyl, made of aluminum chloride and kaolin

46
Q

Is expasyl mech, chem, or both?

A

both

47
Q

Function of aluminum chloride:

A

hemostasis

48
Q

Function of kaolin:

A

tissue retraction, very viscous

49
Q

What is removed with electrosurgery?

A

inner epi lining of gingival sulcus (sulcular lining)

50
Q

What might be an issue if the tissues are inflamed?

A

more bleeding

51
Q

Potential harm of electrosurgery:

A

gingival recession

52
Q

Disadvantages of electrosurgery:

A

Can’t use on pts w electronic mx devices or thin attached gingiva, or w metal instruments bc it could shock, deep soft tissue anesthesia req

53
Q

Pts w these mx devices can not get electrosurgery:

A

pacemaker, transcutaneous electrical nerve stimulation (TENS) unit, insulin pump

54
Q

Attached gingiva, where you can not do electrosurgery:

A

labial tissue of max canines

55
Q

Biologic width:

A

CT + je, formed next to tooth, sup to crestal bone

56
Q

There is a proportional relationship bw:

A

alveolar crest, ct attchament AND epi attachment and sulcus depth

57
Q

biological width is about:

A

2.04mm

58
Q

Invasion of the biological width may cause:

A

gingival irritation, enlargement, gingival and bone recession

59
Q

If the margin of a restoration is very close to alveolar bone, this can happen:

A

inflammation, recession

60
Q

How to prevent invasion of biologic width with lesions that approach the alveolar bone:

A

crown lengthening, also inc’s ferrel

61
Q

Retention of impression material to prefabricated tray is provided by:

A

perforations, rim locks, adhesives

62
Q

What influences the type of tray you will use for a impression?

A

material type

63
Q

Property that prefabricated trays must have to red distortions of impression:

A

rigidity, design that will control material thickness

64
Q

What type of impression material do we use to take impressions for crown fabrication?

A

elastomeric

65
Q

Effect of moisture contamination while taking impression:

A

voids

66
Q

improper fitting interim can lead to:

A

gingival enlargment

67
Q

Cord packing technique we use at SDM:

A

double

68
Q

Why isn’t electrosurgery used more often?

A

potential for gingival recession

69
Q

If the margin of a resto is w/in __mm of the alveolar bone it may lead to issues:

A

2mm

70
Q

When to use prefabricated trays:

A

uncomplicated fixed prosth

indirect Restoration (54 decks)

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