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Operative Dentistry > Operative II-E1:Gold Onlays > Flashcards

Operative II-E1:Gold Onlays Flashcards

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

A

ISTHMUS

20
Q

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

A

THIN

21
Q

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

A

FRACTURED

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?

A

BRUXISM

24
Q

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

A

aesthetic zone

25
Q

5 CONTRAindications for Gold Onlays: 3) Teeth that oppose _______ restorations

A

feldspathic ceramic

26
Q

5 CONTRAindications for Gold Onlays: 4) Which group of teeth?

A

2nd molars (high occ loading

27
Q

5 CONTRAindications for Gold Onlays: 5) _________ treated teeth, they are brittle

A

ENDODONTICALLY

28
Q

An Onlay is a _________ partial crown

A

conservative

29
Q

Onlay: Less chance of _______ pathology since less tooth is removed

A

pulpal

30
Q

______-gingival margins of onlays promote gingival health

A

supra-gingival margins

31
Q

Onlay preps need to allow for _______ to evaluate fit before cementing

A

insertion

32
Q

All internal line angles should be _______ and the margins should be ________

A

rounded….supra-gingival

33
Q

Guess what??! Gold can be _______ than ceramic, so its more CONSERVATIVE!

A

thinner

34
Q

How much clearance, Clarance do we need on the NON-functional cusp?

A

greater than or equal to 1.0mm

35
Q

How much clearance, Clarance do we need on the Fxn cusp?

A

greater than or equal to 1.5mm

36
Q

Gold is dimensionally stringer than ______ or _______

A

ceramic or amalgam

37
Q

COOL for an onlay, our margin profile may be thinner, like the angle of departure can be

A

less than 90 degrees

38
Q

Also for an onlay the isthmus can be ______ compared to ceramic or amalgam.

A

narrower

39
Q

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

A

Hood…1.0mm deep

40
Q

Gold is ______ against the margins during delivery for better adaptation.

A

burnished

41
Q

Gold is ________ to the tooth, therefore it is retained by _______

A

cemented…friction

42
Q

Gold preps require ___ degrees of taper

A

6 degrees

43
Q

How big is the marginal gap for cement?

A

35-50 microns

44
Q

If we want to increase retention for an only prep, adding slots/troughs should be _______

A

divergent

45
Q

________: An extracoronal extension onto the FACIAL or LINGUAL surface just past the proximal line angle of the tooth..Increases retention & resistance

A

Skirting

Operative Dentistry (25 decks)

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