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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
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?
Optiguard
26
With multiple veneers make sure they fit on a Solid model (no multiple dies) and start where?
Midline then out
27
Before assessing a Veneer fin on a pt, what should be done?
Anesthetize and RDI
28
If the Veneers do not fit well before cementing, what should be adjusted?
prep *preferably not Veneer
29
How might you adjust the proximal contacts of a Veneer?
rubber porcelain polishing abrasive wheel
30
What Luting system do we use for Veneers?
Nexus 3
31
When Luting a Veneer, why don't we need a Primer?
No contact with Dentin *so no primer, no 5th gen w/ primer included
32
T/F | Optibond solo plus (or all in one) is Contraindicated with Veneers
True
33
What are the 2 types of Luting Resins available for Luting a Veneer?
Light cured Dual cured
34
The try-in paste for Veneers is ____ soluble What color should be used first?
water clear
35
6 Layers involved in Porcelain Veneer delivery (from inside out) *3 layers for tooth, 3 for veneer
Pumiced/etched enamel Bonding resin (NO primer) Luting composite Bonding resin Silane Etched Veneer
36
Before Silane added, what to do to the etched Veneer ?
Dry completely (EtOH)
37
How long should the Silane be added to the etched Veneer?
1 minute
38
After a try-in, how do you clean a Veneer?
Ultrasound - 2 minutes, soapy water Ivoclean 20 secs
39
What kind of diamonds may be used to adjust occlusion and trim excess Luting resin?
Extra Fine
40
Advantages to a Directly Placed Composite Veneer? Disadvantages?
Immediate, moderate cost, flexibility Longevity, stain, strength, maintenance, long appointments
41
Custom bleaching before Directly Place Composite Veneers is ___% carbamide peroxide for ___ days Followed by __% carbamide peroxide for ___ days
10%, 10 15%, 4
42
What antimicrobial product was approved over 80 years ago in Japan?
Silver diamine fluoride (38%)
43
Silver diamine fluoride is ____% silver and ___% fluoride
25% silver 5% fluoride
44
5 indications for Silver Diamine Fluoride:
Caries arrest High caries risk pts Pts who can't tolerate standard treatment Geriatric and Pedo pts Difficult area to isolate/restore
45
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
Carious lesion Fluoroapatite Bacteriostatic
46
What is better for caries arrest, Silver diamine fluoride, or fluoride varnish?
Silver Diamine Fluoride
47
T/F | Silver Diamine Fluoride is equivalent or better than glass ionomer cement
True
48
Annual application of silver diamine fluoride is better than fluoride varnish ___ times a year *another study found roughly equivalent to 2x/yr varnish
4 times
49
The recommended Silver Diamine Fluoride is __/yr applications to carious lesions
2x/yr
50
3 contraindications to Silver Diamine Fluoride:
Pregnant women (1st 6 months) and Breastfeeding Silver allergy Esthetic areas (staining effect)
51
How can we reduce staining effect of Silver Diamine Fluoride?
SSKI - saturated solution potassium iodide GI or Composite over treated area
52
T/F | Silver diamine fluoride affects composite bonding to noncarious dentin
False
53
Silver diamine fluoride _____ the bond strength of GI to the tooth with one rinse
GI
54
What bonding system is decreased by Silver Diamine Fluoride? *by how much?
Resin Based Crown Cement *1/3
55
What should be done to silver diamine fluoride-treated superficial dentin before cementing crowns?
Excavate

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