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RESTO > Resto Mosby > Flashcards

Resto Mosby Flashcards

1
Q

Protective mechanism of saliva

A
  1. Bacterial clearance
  2. Buffering action
  3. Antimicrobial action
  4. Remineralization
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2
Q

arge carbohydate protein molecule in saliva cause some bacteria to agglutinate & then be removed by swallowing the 1.5L of saliva formed each day

A

Glycoproteins

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3
Q

contains urea & other buffer that help to dilute any plaque acids

A

Saliva

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4
Q

Antimicrobial actions

A

Lysozyme
Lactoferrin
Lactoperoxidase
Type A Ig

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5
Q

destroys cell wall & causes membrane permeability of bacteria

A

Lysozyme

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6
Q

actively binds iron which is important for bacterial enzyme production & function . It may also destroy S. mutans

A

Lactoferrin

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7
Q

inactivated some bacterial enzymes

A

Lactoperoxidase

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8
Q

detected by clinical examination

indicating the interface between abutted restorations are detected by clinical examination are aacceptable

A

Fracture Lines

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9
Q

referred as desensitizers are effective disinfectants, provide cross-linking of any exposed dentin matrix & occlude (“plug”) dentinal tubules by cross-linking tubular proteins

  • aqueous soln.
  • xcontain Glutaraldehyde, hydroxyethylmethacrylatr (HEMA), benzalkonium chloride chlorhexidine
A

Sealers

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10
Q

provide barrier to protect dentin from residual reactants diffusing out of restorarion from oral fluids or from both which penetrate leaky tooth restoratin interfaces

A

Liners

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11
Q

typical liners used with direct restorations

A

CaOH

RMGI

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12
Q

used to provide thermal protection for the pulp & to supplement mechanical support for the restoration

A

Bases - 1-2 mm

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13
Q

more easily condensed than admixed amalgam

A

Spherical amalgam

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14
Q

determined by the ratio of prepared versus inprepared wallss within a tooth preparatipm

A

C - factor

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15
Q

higher C factor indicate

A

Increased chance for postoperative sensitivity

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16
Q

previous called total etch (etch enamel & dentin)

etching of dentin with acids along with the etching of enamel

A

Etch & Rinse

17
Q

AKA multibottle or fourth generation system (etchant, primer , adhesive)

A

Etch & Rinse 3 strep systems

18
Q

most bond strength is from the formation of the hybrid layer
Seals dentin - decreases postoperative sensitivity
Good dentin bonding strengths

A

Etch & Rinse 3 Step Systems / Multibottle or fourth generation system ( etchant, primer , adhesivej

19
Q

AKA one bottle or 5th generation system (primer & adhesive are combined but still need etchant)

A

Etch & Rinse 2 step systems

20
Q 
primer & adhesive combined
still require etchants
most require wet bonding
Bond mechanism is the hybrid layer formation
very technique sensitive
Must have dentin wettability just right
Use primarily for direct procedures
Not faster than multibottle materials
A

Etch & Rinse 2 step system ( one botthe / fifth generation system)
primer & adhesive are combined but still need etchant

21
Q

Self etching systems types

A
  1. Self- etch one step system

2. Self etch two step

22
Q

AKA as all in one- most risky category

A

Self- etch one step system

23
Q

does not remove smear layer
very simple to use
not as good bond to a dentin

A

Self etch one step system

24
Q 
requires approximately 5 coats
does not remove smear layer
fast & easy 
no rinsing mo worry sbout moisture
very low postoperstive sensitivity
does not bond well to uncut enamel
A

Self- etch two step ( self- etch primer & then a bonding adhesive)

25
Q

beveled shoulder design around a capped cusp
provides bracing
271 bur
0.5mm bevel prepared with diamond

A

Collar

26
Q 
extendsmcasring around LA
increases retention form
increases resistance form
"Minicrown prep"
Use diamond
F& L result in 40* gold margin
Gingival finish line is a chamfer
A

Skirt

RESTO (6 decks)

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