Posts - #11 Flashcards

(23 cards)

1
Q

To promote the retention of direct and/or indirect restorations in teeth with extensive coronal destruction

A

posts

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2
Q

posts are prone to root _____ fracture

A

vertical

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3
Q

long posts have _____ retention

A

higher

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4
Q

what kind of post?

Small resistance to
displacement and stress
generated by oclusal forces

Higher risk of fractures

A

short

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5
Q

ideal length of post

C with at least ___ mm but ideal is ____ ≥ mm

A

3mm ; 5mm

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6
Q

for post length,

E must have at least ____ F length

A

1/2

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7
Q

Increases stress concentration inside the root

Increases the risk of lateral perforations

A

Wedge effect

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8
Q

ideal diameter of the post is ___ of the total root width

A

1/3

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9
Q

for the ideal diameter of a post, you want at least ___ mm of remaining dentin

A

1mm

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10
Q

These are part of what endo smear layer?

Inorganic dentin matrix (coronal portion)

Organic matrix
- fragments of odontoblastics processes
- microorganisms
- necrotic material

A

Primary

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11
Q

These are part of what endo smear layer?

Remnants of endodontic cement

Remnants of gutapercha

A

secondary

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12
Q

What kind of post?

Benefits:

Retention

Narrow diameter

Root dentin preservation

Fracture prevention

Higher resilience

ME = 40 Gpa

A

Fiberglass post

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13
Q

what curing process?

initiate the polymerization reaction by generating free radicals

A

dual-double curing process

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14
Q

what is this a benefit of?

Polymerization guarantee

A

dual-double curing process

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15
Q

What is this a disadvantage of?

Polymerization competition

A

dual-double curing process

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16
Q

What kind of resin cement?

Multicomponent adhesive systems that include acid,
primer, and adhesive for luting procedure

A

conventions dual resin cement

17
Q

What kind of resin cement?

It may or not require the use of a self-etch adhesive
system to enhance bond strength

A

SELF-ETCHING DUAL RESIN CEMENT

18
Q

What kind of resin cement?

Does not require surface conditioning.

Acidic monomers demineralize the dentin.

Micromechanical and chemical bonding

Chemical bonds: van der Waals forces + hydrogen bonds.

Limited penetration: no hybrid layer formation

High viscosity (less flow and surface penetration

A

self-etching dual resin cement

19
Q

Gattes-Glidden Drills (alternate with irrigation) for ?

A

gutta-percha removal

20
Q

Largo Drills (alternate with irrigation) for ?

A

post space preparation

21
Q

the moment of fiber post cutting may affect the ______ of root canal posts when a regular resin cement is used

22
Q

Which cement has remarkable superiority of adhesion?

conventional resin cement adhesion or self-
adhesive cement?

A

conventional resin cement adhesion

23
Q

for anatomized posts: the adhesive interface between the post and the composite resin is the _____