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Flashcards in Fixed Q5 Deck (28)
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1
Q

What are the 3 considerations for Pontic Design?

A

Biologic

Esthetic

Mechanical

2
Q

What Pontic Design is concave?

A

Saddle Ridge Lap

3
Q

What are the 5 types of Pontic Designs?

A

Sanitary/hygienic

Saddle Ridge Lap

Modified Ridge lap

Ovate

4
Q

T/F

The tissue surface of pontics should be convex to allow for hygiene

A

True

5
Q

Pontic must be at lease ___ mm to bone

A

2 mm

6
Q

The receptor site for a Pontic must be ___mm to ___mm deep in Esthetic Areas

A

1mm

1.5mm

7
Q

How far should an Ovate Pontic extend into the extraction site on the day of extraction?

What should it be shortened to at 4 weeks?

A
  1. 5mm

1. 5mm

8
Q

Where can a Sanitary/Hygeinic pontic be used?

What material is it?

A

Posterior Mandible

Metal

9
Q

A Conical Pontic is good in what teeth?

What materials (3) can be used?

A

Non-esthetic

All metal, metal-ceramic, all resin

10
Q

Advantage to Modified Ridge Lap?

What materials (3) can be used?

A

Good esthetics

Metal-ceramic, All-resin, All ceramic

11
Q

Advantage to Ovate Pontic?

What materials (3) can be used?

A

Good esthetics

Metal-ceramic, All-resin, All-ceramic

12
Q

Siebert Classification:

describes space between teeth in terms of BONE (actions of space after tooth removed)

A

Class I: Horizontal Loss

Class II: Vertical Loss

Clas III: Horizontal and Vertical loss

13
Q

In the case of Class I, II, or III bone loss, what can augment soft tissue deficiency?

A

Connective tissue graft

14
Q

What Pontic design combines the best features of hygienic and saddle designs, resulting in esthetics with easy cleaning?

A

Modified Ridge Lap

15
Q

The Modified Ridge Lap has a ___shaped area where the pontic touches the gingiva on the ___ side

A

T-shaped

Buccal

16
Q

T/F

The greater the convexity in a Pontic, the easier it is to clean

A

True

17
Q

What can be done to decrease shadow on the facial cervical of a Pontic?

A

re-countour

18
Q

What Pontic should be shaped as convex as possible all around?

A

Conical

19
Q

Where is the only point of contact in a Conical Pontic?

A

Center of residual ridge

20
Q

A conical design may be unsuitable for what kinds of residual ridges?

*food catcher

A

Broad

21
Q

What are the minimum Connector dimensions?

A

2mm height

3mm width

22
Q

Load carrying capacity of a Connector is proportional to what?

A

Height squared x width

23
Q

What rule do Zirconia FPD connectors have to follow?

A

Rule of 27

24
Q

What is the Rule of 27?

A

Zirconia

Height squared x width = AT LEAST 27

25
Q

Why is an extra appointment often necessary for a Metal-Ceramic FPD?

A

Extra soldering before porcelain stacked

26
Q

If you’re going to do extra soldering on a Meta-Ceramic (or all metal) FPD, what should be the Maximum gap distance after sectioning?

A

0.25mm

27
Q

If an additional solder is needed for a Pontic, what are the 2 steps after sectioning?

A

Verify marginal seat

Join with Duralay to capture new relationship

28
Q

When is the Pre-Solder done?

When is the Post-Solder done?

A

before ceramic is applied to framework

after ceramic is applied to framework

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