Operative II-E1:Gold Onlays Flashcards

(45 cards)

1
Q

Tx Plan-Advantage for Gold: Less tooth ______ than a crown, Protects the _____ of the tooth, and the WEAR rate is similar to ______

A

removed..cusps…enamel

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2
Q

Tx Plan-DISAdvantage for Gold: Relies on sound tooth structure for _______

A

retention

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3
Q

Tx Plan-Advantage for Gold: IT SHOULD NOT OPPOSE WHAT MATERIAL? (beeee specific)

A

FELDSPATHIC ceramic!!

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4
Q

Gold Options: Which option has the least amount of tooth removed?

A

an INLAY

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5
Q

Gold Options: What type of prep is THE MOST PROTECTIVE OF ALL RESTORATIONS?

A

Crowns!

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6
Q

Gold Options: Which prep has less tooth removed than a crown AND protects cusps?

A

an ONLAY

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7
Q

Gold options: Which prep relies on sound tooth structure for retention?

A

an ONLAY

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8
Q

Gold Option: Which prep relies on tooth strength to retain and DOES NOT protect cusps?

A

an INLAY

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9
Q

Gold Option: Which prep removes the most tooth structure and should not oppose feldspathic ceramic?

A

a CROWN

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10
Q

Whats the difference? What prep is an intra-coronal restoration?

A

inlay

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11
Q

Whats the difference? What prep is an extra-coronal restoration?

A

onlay

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12
Q

Whats the difference? What prep is used when cusps are missing and the tooth needs PROTECTION?

A

onlay

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13
Q

Whats the difference? What prep is used only when significant tooth structure remains?

A

Inlay

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14
Q

Whats the difference? What prep does NOT procect the tooth?

A

Inlay

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15
Q

Gold ______ Restoration: One or more of the cusps of a tooth and is designed to strengthen a tooth that has been weakened by caries or previous fillings.

A

Onlay

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16
Q

An ONLAY Covers the _______ surface of at least all portions of the tooth involved in occlusal function

A

occlusal

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17
Q

An ______ prep Includes all areas of caries, fracture, and defects

A

onlay

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18
Q

5 indications for Gold Onlays: 1) _____ tooth with incomplete tooth _______ that are limited to the coronal tooth structure

A

VITAL…FRACTURES

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19
Q

5 indications for Gold Onlays: 2) Large restorations where the _______ is wide and/or deep

20
Q

5 indications for Gold Onlays: 3) Areas where the cusps are too ______

21
Q

5 indications for Gold Onlays: 4) Large restorations that are ________ and involve cusps

22
Q

5 indications for Gold Onlays: 5) Patients with _________ type occlusion

A

group function

23
Q

5 CONTRAindications for Gold Onlays: 1)Patients that have what occlusial pathology?

24
Q

5 CONTRAindications for Gold Onlays: 2) Areas in the _______ zone

A

aesthetic zone

25
5 CONTRAindications for Gold Onlays: 3) Teeth that oppose _______ restorations
feldspathic ceramic
26
5 CONTRAindications for Gold Onlays: 4) Which group of teeth?
2nd molars (high occ loading
27
5 CONTRAindications for Gold Onlays: 5) _________ treated teeth, they are brittle
ENDODONTICALLY
28
An Onlay is a _________ partial crown
conservative
29
Onlay: Less chance of _______ pathology since less tooth is removed
pulpal
30
______-gingival margins of onlays promote gingival health
supra-gingival margins
31
Onlay preps need to allow for _______ to evaluate fit before cementing
insertion
32
All internal line angles should be _______ and the margins should be ________
rounded....supra-gingival
33
Guess what??! Gold can be _______ than ceramic, so its more CONSERVATIVE!
thinner
34
How much clearance, Clarance do we need on the NON-functional cusp?
greater than or equal to 1.0mm
35
How much clearance, Clarance do we need on the Fxn cusp?
greater than or equal to 1.5mm
36
Gold is dimensionally stringer than ______ or _______
ceramic or amalgam
37
COOL for an onlay, our margin profile may be thinner, like the angle of departure can be
less than 90 degrees
38
Also for an onlay the isthmus can be ______ compared to ceramic or amalgam.
narrower
39
When the functional cusp or tooth is weak or the isthmus is deep, we'll ______ or cover the functional cusp. It should be ____mm deep
Hood...1.0mm deep
40
Gold is ______ against the margins during delivery for better adaptation.
burnished
41
Gold is ________ to the tooth, therefore it is retained by _______
cemented...friction
42
Gold preps require ___ degrees of taper
6 degrees
43
How big is the marginal gap for cement?
35-50 microns
44
If we want to increase retention for an only prep, adding slots/troughs should be _______
divergent
45
________: An extracoronal extension onto the FACIAL or LINGUAL surface just past the proximal line angle of the tooth..Increases retention & resistance
Skirting