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Fix pros 3 2020 > Final Review > Flashcards

Final Review Flashcards

1
Q

What is the liquid referred to in acrylics?

A

-Monomer

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2
Q

What is the powder referred to as in acrylics?

A

-Polymer

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3
Q

If you have a cavosurface margin, stained sclerotic dentin do you leave it there?

A

-No you don’t want to leave something that can be questionable

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4
Q

Can a painful stimulus increase salivation?

A

-Yes

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5
Q

What do you use to strengthen the hardness of the die?

A

-Low viscosity cyanoacrylate

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6
Q

Why do you use type I mounting stone?

A

-It has the lowest expansion of all the stones

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7
Q

What is type III stone used for?

A

-Study models

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8
Q

What do you use type IV and V stone for?

A

-Used for dies

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9
Q

What is the hardest type of dental stone?

A

-Type V but it expands more (used for ceramo metals and high heat stuff)

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10
Q

What type of stone do you used for restorations that are going to be scanned and milled?

A

-Type IV (doesn’t expand as much)

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11
Q

Colors are defined by how many variables?

A

-3

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12
Q

Where does resin cement fall in solubility when compared to other cements?

A

-Lowest in solubility (least potential for moisture damage)

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13
Q

What is the RMGI cement in the school?

A

-Rely-x luting plus

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14
Q

Why are excursive contacts bad on posterior teeth?

A
  • Potential to break a cusp
  • Can cause TMD
  • Increases the activity of the elevator muscles
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15
Q

What do you look for in cracked tooth syndrome?

A
  • Pressure on biting release

- Cold sensitivity

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16
Q

Is it an emergency to restore a fractured cusp?

A

-No as long as there is no gap in the base material

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17
Q

Would you use a self-adhesive resin cement to bond a ceramic onlay?

A

-No (use esthetic resin cement or an adhesive resin cement)

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18
Q

What is the concern with bonding agents with a build up dual cure resin material?

A
  • Best way is to stay within the system of a single company

- Use a total-etch and rinse adhesive, don’t use a self etch adhesive

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19
Q

What is the chemical used to bond to glass ceramics such as feldspathic porcleain or emax?

A

-Silane

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20
Q

What do you use to prepare the surface of a glassy ceramic

A

-Hydrofluoric etch

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21
Q

With crystalline ceramics what do you use for a bonding agent?

A

-MDP (has to have a phosphate end on it that is going to bond with the zirconia oxide)

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22
Q

What is the degree of diversion tolerable between the locater, the locater extanded range and locator rdx?

A
  • Locater 10 per unit
  • Locator extended range 20 per unit
  • Locator rdx 30 per unit
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23
Q

What is the U of U rules for taking a full arch impression

A
  • Most posterior tooth
  • Canine
  • Three or more units
24
Q

What is the purpose of a stress breaker in fixed bridges?

A
  • You don’t want a teeter totter effect such as periodontal involved teeth
  • Pier to pier to pier bridge
  • Crossing the midline in the lower arch because of movement of the symphysis
25
Q

Orthodontically uprighting a tipped second molar what will happen bodily with that tooth as it is uprighted?

A
  • The apical third is the center of the pivot and the tooth will get taller
  • You may have to shorten the tooth
26
Q

What is the most common pontic design?

A

-Modified ridge lap

27
Q

What tooth has the highest surface area of PDL?

A

-Upper 1st molar

28
Q

T/F The lower first molar has the highest percent of a quadrant of surface area of PDL

A

True

29
Q

What is the downside of a cast post and core?

A

-If it fails it is usually catastrophic (need a 2mm ferrule minimum)

30
Q

What are the primary goals of occlusal adjustment

A

-Bilateral simultaneous posterior tooth contacts force directed down the long axis of the tooth
-Seated condyles
-Anterior guidance if
possible if not then group function

31
Q

What does two plane facial reduction do?

A

-Gives you better resistance and retention form

32
Q

What are the contraindications for probanthin?

A
  • Glaucoma

- Be careful in the elderly because they might have this issue

33
Q

With the electro surgery what surfaces should you avoid?

A

-Metallic

34
Q

If you see sparking with an electro surge what should you do?

A

-Turn the current down

35
Q

What two things are extremely important when preparing teeth for crowns?

A
  • Clearance

- Reduction

36
Q

What are the hemo static agents used in dentistry?

A
  • Viscostat clear ( aluminum chloride)

- Astringident (ferric sulfate more effective)

37
Q

Where do you not want to use the ferric sulfate?

A

-Anterior teeth because it can stain the gingival tissue

38
Q

What does contact angle have reference to?

A
  • Higher contact angle the more hydrophobic the surface
  • Something that is wettable is more hydrophillic giving it a lower contact angle
  • THe materials we use are hydrophobic
39
Q

What does a post do if you are using it in a build up?

A

-Just helps retain the build up it does not strengthen the tooth

40
Q

With the SDA approach to treatment plan what are the criteria?

A
  • Older than 40
  • Good oral hygiene
  • If a patient does not get their home care up to par then don’t do an SDA
41
Q

What are the reasons for subgingival margin replacement?

A
  • Esthetics
  • Retention
  • You are following decay to get to sound tooth structure
42
Q

Polycarboxylate cement (tyloc plus) isnt used as a luting agent because why?

A

-It washes out but it is a great cement for a temporary, but don’t every put it on the post

43
Q

What is the order you check the fit of an indirect restoration?

A
  • Contacts
  • Intaglio surface
  • Margins
  • Esthetics
  • Occlusion
44
Q

What does mechanical mixing dental stone give you?

A
  • More dense

- More bubble free

45
Q

Why is it so critical to set a timer with impressions and cements?

A
  • So you can get your accuracy better
  • so you don’t get distortion
  • So you don’t get contamination
46
Q

What material do we use in the clinic that has zinc oxide eugenol?

A
  • IRM
  • Temp bond
  • Tylox
47
Q

Why is Eugenol good?

A

-It is soothing abtundant to pulpal tissue

48
Q

What are the most important qualities for cements?

A
  • Compressive strength

- Modulus of elasticity

49
Q

What is ideal taper and what is acceptable?

A

6-10

-22

50
Q

With shade matching there is hue value and chroma, which is the toughest of the three to get right?

A

-Value

51
Q

With value is it easier to correct one that is to high or to low?

A

-To high

52
Q

What can you secure to a post with?

A

-Don’t use Rely x luting plus because the Glass Ionomer expands

53
Q

Why do we do some cases mount the models on articulator and evaluate in CR rather than CO?

A
  • Multiple restorations or more complex cases
  • You can do a diagnostic wax up in CR
  • The acquired bit can migrate over time
  • Helps with vertical dimension issues
54
Q

How do you combat MMP action?

A
  • Chlorhexidine

- Benzoconium chloride

55
Q

What is metamarism?

A
  • Different lighting backgrounds can make an object appear a different color
  • Shade match in multiple lights, use a low chroma

Fix pros 3 2020 (2 decks)

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