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Dental Materials > Review Final > Flashcards

Review Final Flashcards

1
Q

What are the best means when trimming your models

A

Wax bite

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2
Q

When you select an impression tray and it doesn’t fit what do you use?

A

Periphery wax

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3
Q

When you try your maxillary tray what does it have to cover in the posterior region

A

Tuberosity

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4
Q

What do you cement temporary crowns in the mouth with

A

Zinc oxide

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5
Q

What’s in dental Alloy

A

Silver (main one) copper, tin, zinc and Mercury

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6
Q

Dental stone vs plaster

A

Stronger

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7
Q

What material dominates the field of restorative

A

Composite

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8
Q

Lutting

A

1inch string that breaks And spreads

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9
Q

Base

A

Putty like consistency used for a temporary restoration

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10
Q

What are the two types of retention when talking about restorative materials

A

Mechanical and chemical

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11
Q

Which cements are permanent?

A

Zinc phosphate, ploy carboxylate, glass ionomers

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12
Q

Which cements are temporary

A

ZOE zinc oxide

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13
Q

What’s the best way to prevent retention between a tooth in the restoration?

A

Bonding

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14
Q

What’s the best way to prevent gagging when taking an impression

A

Tell the patient to breathe through their nose

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15
Q

When using a light cure what is our safely ?

A

Eyewear or shield

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16
Q

What’s the best way to pick out a shade tooth color for your patient?

A

In the natural light

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17
Q

What does Anticariogenic do?

A

Stops decay

18
Q

Which type of cement is best for Anticariogenic?

A

Glass ionomers because it contains fluoride

19
Q

Which product can promote secondary Dentin

A

Cavity liner

20
Q

Which gives off exothermic heat

A

Zinc phosphate

21
Q

Over trituration

A

Dry and brittle

22
Q

Under trituration

A

Crumbly and not mixed right

23
Q

What is cavity varnish used for ?

A

To seal dentinal tubules

24
Q

What’s the sub base applicator used for besides sealants ?

A

Calcium hydroxide (Cavity liner)

25
Q

Which cement needs to be and has to be according to the manufacturer directions mix on the glass slab

A

Zinc phosphate

26
Q

Increasing the temperature would either increase decrease the setting time of cements?

A

Decrease

27
Q

A cool glass slab before mixing on it will, increase or decrease ?

A

Increase

28
Q

What gives amalgam is plasticity?

A

Mercury

29
Q

Why do we polish an amalgam restoration ?

A

To bring the Mercury to the top and it makes it all nice and smooth so plaque doesn’t attack it

30
Q

What’s the purpose of acid etching

A

It makes the surface rust to make a better restoration

31
Q

What’s an advantage of a light cure product ?

A

The operator has control of the setting time

32
Q

What’s the best method of changing your setting time of alginate

A

Temperature of the water

33
Q

If you increase the temperature of the water will that decrease or increase

A

Decrease

34
Q

When your plaster or stone is setting what will happen to it

A

Expand

35
Q

What can you use to put your impressions in until you have the time to pour them up

A

Humidor

36
Q

Dental amalgam final set time is -

A

24-48 hours

37
Q

Mercury toxicity in the dental office

A

Ventilation and initiation

38
Q

What are the 3 spills

A

400 600 800

39
Q

Which poly takes the longest and has a horrible odor

A

Ploy sulfide

40
Q

What is the temperature of an alginate

A

68-70 (room temperature)

41
Q

Chelation

A

Ability to bond to a tooth

42
Q

A.N.S.I

A

American national standard institute

Dental Materials (6 decks)

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