Operative II-E1: Gold Onlays part 2 Flashcards

1
Q

Which bur is the best for DIVERGING the walls of the isthmus and box forms?

A

169(L)

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2
Q

What is the width of a maxillary PM gingival floor?

A

1.2mm

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3
Q

What is the range of contact separation on a maxillary PM?

A

0.5-1mm (to burnish the margins!)

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4
Q

The axial wall on a gold only prep is convex and ________

A

convergent

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5
Q

Non-Fxn Bevel: ___-___ mm

A

0.5-0.75mm

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6
Q

Gingival Bevel: ____mm

A

1.0mm

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7
Q

Functional Bevel: ___-___mm (my downfall)

A

1.0-1.5mm

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8
Q

The isthmus is _____ wide and _____ deep

A

2.0mm wide, 2.0mm deep

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9
Q

Dr. H “recommends” to use the ____ bur for cutting the depth grooves

A

856 D

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10
Q

When you are checking occlusion ALWAYS check which TWO positions?

A
  1. MIP-static 2.Lateral Excursions-dynamic
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11
Q

IN THE HOOD: where is the hood located in relation to the pulpal floor?

A

APICAL to the pulpal floor

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12
Q

What is the finishing bevel on the hood?

A

LESS than 0.5mm (my nemesis today)

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13
Q

Why we in tha hood on the fxn cusp: it ________ the functional cusp

A

reinforces

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14
Q

Why we in tha hood on the fxn cusp: Placed below the level of the pulpal floor to prevent the ______ cusp from fracture

A

lingual…interesting

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15
Q

Why we in tha hood on the fxn cusp: improves ________ by providing a reciprocal wall on the palatal surface

A

retention

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16
Q

In the HOOD: the palatal wall is ______

A

convergent

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17
Q

I’m confused: ___mm finishing bevel along the entire cavo-surface margin

A

0.5mm…what was all that other bevel stuff?

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18
Q

When do I finish divergence of the internal walls?

A

AFTER the occlusal reduction (easier access and visibility, better able to determine retention)

19
Q

If doing a skirt on a max molar, the ______ skirt will be larger than the ______ surface

A

distal larger than mesial

20
Q

The pulpal and gingival floors are parallel to the ______ plane

A

occlusal plane

21
Q

Which impression type? trip tray or full arch: less steps involved, DYNAMIC impression, reduces the “HIGH crown”!!!

A

triple tray

22
Q

Which impression type? trip tray or full arch:

Accurate mounting is technique sensitive

A

full arch

23
Q

Which impression type? trip tray or full arch:

Limited to stable occlusion and simple cases

A

trip tray

24
Q

The double bite impression is ‘dynamic’ because when taken the teeth depress because of the ____

A

PDL

25
Q

Indications for Triple Tray: Pt has a Type ___ bite

A

type I

26
Q

Indications for Triple Tray: There is a stable, positive, and reproducible occlusion– _____

A

MIP

27
Q

Contra Indications for Triple Tray: NO _______ partial dentures!!

A

REMOVABLE

28
Q

Contra Indications for Triple Tray: No Type___ NOR Type ___ occlusal schemes

A

Type II NOR Type III

29
Q

Which material does Dr. H recommend for triple tray impressions?

A

Polyether, its more rigid

30
Q

Which is more flexible Polyether or PVS?

A

PVS is more flexible, PE is more rigid

31
Q

How many times should you rehearse the triple tray steps with the Pt?

A

3 times w empty tray

32
Q

What are you looking for to ensure Pt is in MIP during a Triple Tray impression?

A

contralateral contacts

33
Q

In a triple tray impression, you want to see _____ pass through the MIP contacts

A

light

34
Q

What type of provisional do we use when a prep has thin areas under heavy occlusion?

A

Metal Ion

35
Q

When using integrity, how long should the pt occlude for it to set?

A

60 seconds

36
Q

What do you bond the Bis-Acrylic Resin Temp with?

A

Temp Bond

37
Q

When using a metal ion temp, we will use pliers to thin and smooth the ______ of the temp

A

margins

38
Q

If the metal ion temp has good retention, use _______ cement

A

Cement with B & T (ZOE)

39
Q

If the metal ion temp is loose, reline with ______ then cement it with ______

A

acrylic…temp bond

40
Q

What do you use to clean excess cement? Hopefully we don’t have to use anesthetic…

A

an explorer, cotton and pumice

41
Q

If you have an open margin when you go to deliver your crown, what do you ALWAYS check FIRST?

A

Contacts!

42
Q

When adjusting the contacts, use a _______ ONLY

A

rubberized abrasive

43
Q

Finalizing the marginal fit: smooth margins with a ____ bur and finish with a _____ stone. Use the ____ speed hand piece in _______

A

7404 bur…white stone….slow speed…reverse

44
Q

To prepare the restoration, ______ the inside of it and _____ the tooth its going on

A

sandblast…pumcie