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Tip > Preparations > Flashcards

Preparations Flashcards

1
Q

How many mm of enamel present at gingival margin of an upper lateral

A

0.39

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2
Q

How much enamel at the margin of an upper central

A

0.34

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3
Q

How much enamel at the margin of an upper Canine

A

0.29

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4
Q

How much enamel is prepared at the gingival margin for a dentine bonded crown for an upper lateral

A

0.35

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5
Q

How much enamel is prepared at the margin of an upper 1 for a dentine bonded crown

A

0.3mm

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6
Q

How much enamel is prepared at the gingival margin for a dentine bonded crown for a Canine

A

0.25mm

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7
Q

How many planes of reduction oclusally for a premolar

A

4

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8
Q

How many planes of reduction occlusally for a molar

A

8

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9
Q

What is the axial inclination of a pfm

A

6

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10
Q

What is the convergence angle of dentine bonded crown

A

20-30

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11
Q

What is the axial inclination of a dentine bonded crown

A

10-15

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12
Q

What is the axial inclination of a Zirconia crown

A

8-10

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13
Q

What is the point of the functional cusp bevel

A

To create extra thickness in an area of stress, to put the cusp tips in line with the surrounding teeth

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14
Q

At least how far away should the margin be from the point of contact

A

1mm

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15
Q

What is the difference between 3/4 crown and onlay

A

Onlay involves complete removal of the restoration
3/4 crown involves maintaining existing restoration

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16
Q

How thick is a yellow gold coping

A

0.6mm

17
Q

How thick is a non precious coping

A

0.3mm

18
Q

How thick is a semi precious coping

A

0.4mm

19
Q

How thick is opaque porcelain coping

A

0.9mm

20
Q

What is the occlusal reduction on a pfm Premolar crown

A

1.5 mm

Tip (10 decks)

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