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PROSTHO > 13. Dls > Flashcards

13. Dls Flashcards

1
Q

done right after tooth preparation to accurately copy the tooth preparation

A

TISSUE MANAGEMENT

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2
Q

upon taking the impression, rubber impression materials are used as they require low contamination of saliva or any other oral fluids

A

TISSUE MANAGEMENT

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3
Q

after the teeth are prepared and an interim restoration has been made, the health of the surrounding soft tissues is re-evaluated

A

TISSUE HEALTH

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4
Q

to avoid periodontal disease, formation of plaque and tartar, we cannot place the final restoration when there is ongoing tissue inflammation because tissue will progress to gingival recession and eventually there will be tooth mobility if periodontal disease is not treated

A

TISSUE HEALTH

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5
Q

prior to prosthodontic final restoration, we should be able to restore good health in the surrounding tissues so that it will not affect your final restoration

A

TISSUE HEALTH

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6
Q

periodontal disease must be treated and resolved before fixed prosthodontics treatment is initiated

A

TISSUE HEALTH

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7
Q

most effective method of moisture control

A

Rubber Dam

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8
Q

isolate a tooth in order to show the preparation

A

Rubber Dam

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9
Q

indicated when all margins are
supragingival

A

Rubber Dam

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10
Q

isolates teeth and prevent saliva/oral fluids from contaminating the operating field

A

Absorbent Cotton Rolls

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11
Q

→ also used together with the rubber dam
→ placed on areas where salivary ducts are located to absorb the saliva
produced

A

Absorbent Cotton Rolls

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12
Q

helps saliva control during impression making

A

Local Anesthesia

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13
Q

indicated when saliva control is especially difficult to achieve

A

Antisialagogue

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14
Q

What are the displacement of tissues?

A

MECHANICAL METHOD

CHEMICAL METHOD

CHEMICAL DISPLACEMENT

DISPLACEMENT CORD

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15
Q

→ widely used
→ most effectively achieved by placement of a cord (generally
impregnated with a chemical agent)

A

MECHANICAL METHOD

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16
Q

the cord is pushed into the sulcus and mechanically stretches the circumferential periodontal fibers

A

MECHANICAL METHOD

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17
Q

alternatively, foam or paste systems can be used, alongside with directed pressure

A

MECHANICAL METHOD

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18
Q

involves treatment of the string with one or more number of chemical compounds that will induce temporary shrinkage of the tissues and control the bleeding and fluid seepage

A

CHEMICAL METHOD

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19
Q

CHEMICAL METHOD

chemicals used along with retraction cords are classified as:

A

Vasoconstrictors

Astringents

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20
Q

Astringents

A

ferrous sulfate & ferric chloride

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21
Q

Vasoconstrictors

A

epinephrine

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22
Q

sulci can be enlarged better with a chemically impregnated cord or a cord dipped in an astringent (ex.: Hemodent)

A

CHEMICAL DISPLACEMENT

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23
Q

these materials contain aluminum or iron salts and cause transient ischemia and shrinking of the gingival tissue

A

CHEMICAL DISPLACEMENT

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24
Q

Advantages

Good tissue displacement Minimal tissue loss
Good hemostasis

A

Epinephrine

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25
Q

Disadvantages

Systemic reactions of patients with cardiovascular issues (uncontrolled blood pressure may cause excessive bleeding) Epinephrine syndrome

A

Epinephrine

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26
Q

Advantages

Minimal tissue loss
Extended working time

A

Alum

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27
Q

Disadvantages

Less hemostasis & tissue displacement

A

Alum Disadvantages

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28
Q

Advantages

Minimal tissue loss
Good hemostasis

A

Aluminum chloride

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29
Q

Disadvantages

Local tissue destruction

A

Aluminum chloride

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30
Q

Advantages

Compatible with aluminum chloride
Good displacement

A

Ferric sulfate

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31
Q

Disadvantages

Non-compatible with epinephrine
Tissue discoloration

A

Ferric sulfate

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32
Q

Advantages

Good tissue response

A

Tannic acid

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33
Q

Disadvantages

Less displacement
Minimal hemostasis

A

Tannic acid

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34
Q

even so, on cord removal, the sulcus closes quickly (less than 30 seconds)

A

DISPLACEMENT CORD

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35
Q

work fast and take advantage of the exposure of the shoulder

A

DISPLACEMENT CORD

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36
Q

some astringent solution can expand the sulcus

A

DISPLACEMENT CORD

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37
Q

therefore, the impression must be made immediately

A

DISPLACEMENT CORD

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38
Q

SURGICAL METHODS are?

A

ELECTROSURGERY

SOFT TISSUE LASER

ROTARY GINGIVAL CURETTAGE

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39
Q

electric cutting machine (also used in dermatological field)

A

ELECTROSURGERY

40
Q

denotes surgical reduction of sulcular epithelium using an
electrode to produce gingival retraction

A

ELECTROSURGERY

41
Q

CONTRAINDICATIONS
→ patients with cardiac pacemaker
→ patients with delayed wound healing
o refer patient to hematologist → patients on steroid therapy
o need to have medical clearance prior to performing dental procedures
→ in the recently irradiated area

A

ELECTROSURGERY

42
Q

Advantages

→ clear operating areas without or no bleeding
→ healing by primary intention
→ less tissue loss after healing

A

ELECTROSURGERY

43
Q

Disadvantages

→ unpleasant odor
→ slight loss of crestal bone
→ burn mark on the root
surface
→ not suitable for thin gingiva

A

ELECTROSURGERY

44
Q

also useful for tissue contouring procedures

A

SOFT TISSUE LASER

45
Q

enable predictable removal of tissue by creating a trough
around the prepared tooth

A

SOFT TISSUE LASER

46
Q

→ quite expensive
→ advanced technology

A

SOFT TISSUE LASER

47
Q

Advantages

→ minimum pain or discomfort
→ minimum or no anesthesia
→ lesser chair time
→ reduced postoperative
complications

A

SOFT TISSUE LASER

48
Q

Disadvantages

→ overuse causes shrinkage of tissue and results in exposure of crown margin
→ quite expensive

A

SOFT TISSUE LASER

49
Q

technique of using rotary diamond instruments to enlarge the sulcus

A

ROTARY GINGIVAL CURETTAGE

50
Q

it involves preparation of the tooth subgingivally while simultaneously curetting the inner lining of the gingival sulcus

A

ROTARY GINGIVAL CURETTAGE

51
Q

be careful in manipulating because you might cut the crest since
the crest is where you hide the junction of your prosthesis and
tooth surface

A

ROTARY GINGIVAL CURETTAGE

52
Q

the goal is to eliminate the trauma from pressure packing and
the need for electrosurgical procedures

A

ROTARY GINGIVAL CURETTAGE

53
Q

chemomechanical:
o using retraction cord and epinephrine or different astringent solutions

A

ROTARY GINGIVAL CURETTAGE

54
Q

indicated in patients with a gummy smile whose gingival architecture and biotype could result in recession with more aggressive retraction methods

A

SINGLE CORD

55
Q

“gummy smile”: patients whose gums are seen when smiling

A

SINGLE CORD

56
Q

indicated in patients with shallow sulcus due to reduced biologic width

A

SINGLE CORD

57
Q

the resultant recession could have significant aesthetic consequences

→ be careful when manipulating the gingiva

A

SINGLE CORD

58
Q

0

A

big

59
Q

00

A

smaller

60
Q

000

A

smallest

61
Q

used in cases wherein multiple tooth preparations is done

A

DOUBLE CORD

62
Q

indications:
o impression of multiple prepared teeth
o when tissue health is compromised
o excess gingival fluid exudates

A

DOUBLE CORD

63
Q

CLASSIFICATION OF RETRACTION CORDS

A

Configuration

Surface Finish

Chemical Treatment

Number of Strands

Surface Texture

Thickness

64
Q

→ knitted
→ braided
→ twisted

A

Configuration

65
Q

→ waxed
→ unwaxed

A

Surface Finish

66
Q

→ impregnated
→ plain

A

Chemical Treatment

67
Q

→ single
→ double-string

A

Number of Strands

68
Q

→ wet
→ dry

A

Surface Texture

69
Q

→ 000,00,0,1,2,3

A

Thickness

70
Q

interlocking loops

A

KNITTED

71
Q

longitudinally

A

KNITTED

72
Q

→ elastic
→ transversely resilient

A

KNITTED

73
Q

→ one of the best retraction cords used now

A

KNITTED

74
Q

→ flexible
→ multistrand

A

BRAIDED

75
Q

→ does not separate when inserted into the sulcus
→ easy to use
→ also good to use

A

BRAIDED

76
Q

allows the dentist to customize the cord as individual strands can be removed

A

TWISTED

77
Q

→ common in cheaper brands
→ easily dislodge in the sulcus
→ does not stay

A

TWISTED

78
Q

→ use of epinephrine or stringent solution

A. Impregnated
B. Plain

A

A

79
Q

no chemical incorporated in retraction cord

A. Impregnated
B. Plain

A

B

80
Q

000

Color?

A

Black

81
Q

Color?

00

A

Yellow

82
Q

Color?

O

A

Purple

83
Q

Color?

1

A

Blue

84
Q

Color?

2

A

Green

85
Q

Color?

Red

A

3

86
Q

Advantages

→ asset during tooth preparation as it exposes the finish line
→ excellent impressions are obtained due to fluid control

A

RUBBER DAM

87
Q

Disadvantages

→ useful only when limited number of teeth in one quadrant are being restored
→ used in simple preparations with minimal subgingival preparations

A

RUBBER DAM

88
Q

without the technology of retraction cords, this was mainly used in the 1900s

A

COPPER BRAND IMPRESSION

89
Q

→ utilized to retract or expose margins
→ for placement of the impression material

A

COPPER BRAND IMPRESSION

90
Q

Advantages

→ good method to confirm gingival margins (ex.: in multiple abutments)
→ easy to cut and manipulate
→ easy to bend

A

COPPER BRAND IMPRESSION

91
Q

Disadvantages

→ incisional injuries to the gingival tissues
→ excess pressure tends to stipple the tissues from the tooth

A

COPPER BRAND IMPRESSION

92
Q

In SINGLE CORD TECHNIQUE

Placement of the cord begins by
pushing it in the sulcus on the
_____ surface of the tooth

A

mesial

93
Q

In SINGLE CORD TECHNIQUE

It should be tucked into the
______ to hold the cord
in place. Be sure to surround
the specific tooth without
contamination of saliva

A

distal crevice

94
Q

In DOUBLE CORD TECHNIQUE

An initial (____) cord is trimmed and placed so that it’s ends
do not overlap.

A

thin

95
Q

In DOUBLE CORD TECHNIQUE

A second (___) cord is then saturated with astringent,
placed in the normal manner, and removed after several
minutes.

A

thicker

PROSTHO (17 decks)

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