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Tim's Cards > Operative II E2 > Flashcards

Operative II E2 Flashcards

1
Q

T/F

Porcelain veneers are strong when bonded with enamel

A

True

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2
Q

T/F
Porcelain veneers can reshape peg laterals, close diastema, or lengthen teeth

(and alleviate severe tetrycycline staining)

A

True

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3
Q

3 Advantages to Porcelain veneers

3 Disadvantages

A

Very aesthetic, Greater longevity, Conservative

Cost, Time, Visits

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4
Q

3 Types of Veneers:

A

Direct Composite

In-Direct composite

Porcelain

*there are a further 3 types of Porcelain

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5
Q

What are the 3 types of Porcelain Veneers?

A

Stacked

Pressed

Milled CAD/CAM

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6
Q

What is the advantage to Direct Composite Veneers?

Disadvantage?

A

Simple, single appointment

Poor stain resistance, less durable

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7
Q

What is the Advantage to In-Direce Composite Veneers?

Disadvantage?

A

Repairable, good stain resist

Multiple appointments, limited durability

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8
Q

Advantage of Stacked Porcelain Veneers?

Disadvantage?

A

Best esthetics/stain resistance

costly, difficult to duplicate

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9
Q

Advantage of Pressed Porcelain Veneers?

Disadvantage?

A

Stregth/fit

Staines placed on surface

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10
Q

Advantage to Milled CAD/CAM Porcelain Veneers?

Disadvantage?

A

Strength/convenience

Stains placed on surface

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11
Q

4 Contraindications to Porcelain Veneers:

A

If lack enough enamel to bond

Small hypoplastic spots

If Diastema closure less than 1mm

Destructive Occlusions (bruxers, class II)

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12
Q

What are Diagnostic Casts/Wax-ups used for in Porcelain Veneers?

A

Stent for temp veneers

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13
Q

Facial Reduction for Porcelain Veneer is a ____mm gingival chamfer

____ mm for incisal and the body

____ mm for dark teeth

A
  1. 3mm
  2. 5 - 0.7 mm
  3. 75 - 1.0 mm
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14
Q

In a regular (standard, traditional) Veneer prep, where does the IP margin end?

A

Facial to the contact

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15
Q

What is in the Linguo-gingival-proximal area of a Veneer prep?

What does this prevent?

A

S curve

dark triangle shadow between teeth

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16
Q

Where is the Proximal finish line in Veneers designed for a Diastema Closure?

A

Lingual to Contact

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17
Q

If Veneers are in contact with one another, prep margins….

If Veneers meet natural teeth, prep margins…

A

Open

maintained

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18
Q

Why is an Incisal Hood no longer used on Veneer preps?

A

Will cause fractures at tip

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19
Q

Minimal incisal reduction when lengthening?

A

1.5 - 2.0 mm

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20
Q

When reducing incisal edge for a Veneer prep, what to do with facial angle?

Lingual angle?

A

round off

leave straight (otherwise will fracture)

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21
Q

What do you need to do before prepping a tooth for a Veneer?

After?

A

Take shade

Stump shade

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22
Q

3 choices for Temporary Veneers:

A

Bonded Acrylic (lots of heat)

Direct spot-bonded composite

Bonded composite-type temp matl

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23
Q

Advantages of Acrylic Veneer Temp:

Disadvantages:

A

Strength/wear

Heat, opaque, poor retention

24
Q

Advantages of Composite Veneer Temp:

Disadvantages:

A

Esthetic, easily repaired

Technique sensitive, brittle

25
Q

In clinical setting, for Temp Veneer, do not use lube on tooth, Optibond Solo plus, bis-acryl, remove excess, polish w/ diamond bur and use what for Polish/Glaze?

A

Optiguard

26
Q

With multiple veneers make sure they fit on a Solid model (no multiple dies) and start where?

A

Midline then out

27
Q

Before assessing a Veneer fin on a pt, what should be done?

A

Anesthetize and RDI

28
Q

If the Veneers do not fit well before cementing, what should be adjusted?

A

prep

*preferably not Veneer

29
Q

How might you adjust the proximal contacts of a Veneer?

A

rubber porcelain polishing abrasive wheel

30
Q

What Luting system do we use for Veneers?

A

Nexus 3

31
Q

When Luting a Veneer, why don’t we need a Primer?

A

No contact with Dentin

*so no primer, no 5th gen w/ primer included

32
Q

T/F

Optibond solo plus (or all in one) is Contraindicated with Veneers

A

True

33
Q

What are the 2 types of Luting Resins available for Luting a Veneer?

A

Light cured

Dual cured

34
Q

The try-in paste for Veneers is ____ soluble

What color should be used first?

A

water

clear

35
Q

6 Layers involved in Porcelain Veneer delivery (from inside out)

*3 layers for tooth, 3 for veneer

A

Pumiced/etched enamel

Bonding resin (NO primer)

Luting composite

Bonding resin

Silane

Etched Veneer

36
Q

Before Silane added, what to do to the etched Veneer ?

A

Dry completely (EtOH)

37
Q

How long should the Silane be added to the etched Veneer?

A

1 minute

38
Q

After a try-in, how do you clean a Veneer?

A

Ultrasound - 2 minutes, soapy water

Ivoclean 20 secs

39
Q

What kind of diamonds may be used to adjust occlusion and trim excess Luting resin?

A

Extra Fine

40
Q

Advantages to a Directly Placed Composite Veneer?

Disadvantages?

A

Immediate, moderate cost, flexibility

Longevity, stain, strength, maintenance, long appointments

41
Q

Custom bleaching before Directly Place Composite Veneers is ___% carbamide peroxide for ___ days

Followed by __% carbamide peroxide for ___ days

A

10%, 10

15%, 4

42
Q

What antimicrobial product was approved over 80 years ago in Japan?

A

Silver diamine fluoride (38%)

43
Q

Silver diamine fluoride is ____% silver and ___% fluoride

A

25% silver

5% fluoride

44
Q

5 indications for Silver Diamine Fluoride:

A

Caries arrest

High caries risk pts

Pts who can’t tolerate standard treatment

Geriatric and Pedo pts

Difficult area to isolate/restore

45
Q

Silver diamine fluoride allows silver/protein matrix to adhere to what?

fluoride forms a veneer of ______ and closes dentinal tubules

Silver is ______

***then tooth becomes harder and bacteria are neutralized and caries becomes inactive

A

Carious lesion

Fluoroapatite

Bacteriostatic

46
Q

What is better for caries arrest, Silver diamine fluoride, or fluoride varnish?

A

Silver Diamine Fluoride

47
Q

T/F

Silver Diamine Fluoride is equivalent or better than glass ionomer cement

A

True

48
Q

Annual application of silver diamine fluoride is better than fluoride varnish ___ times a year

*another study found roughly equivalent to 2x/yr varnish

A

4 times

49
Q

The recommended Silver Diamine Fluoride is __/yr applications to carious lesions

A

2x/yr

50
Q

3 contraindications to Silver Diamine Fluoride:

A

Pregnant women (1st 6 months) and Breastfeeding

Silver allergy

Esthetic areas (staining effect)

51
Q

How can we reduce staining effect of Silver Diamine Fluoride?

A

SSKI - saturated solution potassium iodide

GI or Composite over treated area

52
Q

T/F

Silver diamine fluoride affects composite bonding to noncarious dentin

A

False

53
Q

Silver diamine fluoride _____ the bond strength of GI to the tooth with one rinse

A

GI

54
Q

What bonding system is decreased by Silver Diamine Fluoride?

*by how much?

A

Resin Based Crown Cement

*1/3

55
Q

What should be done to silver diamine fluoride-treated superficial dentin before cementing crowns?

A

Excavate

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