Brainscape's Knowledge GenomeTM

Browse over 1 million classes created by top students, professors, publishers, and experts.


See full index

Direct/Cariology > Bonding Principles > Flashcards

Bonding Principles Flashcards

1
Q

What are the three different materials that make up the adhesive joint

A
  • Adhesive (middle)
  • Tooth Structure
  • Composite
How well did you know this?
1
Not at all
2
3
4
5
Perfectly
2
Q

The tooth structure is (hydrophilic/hydrophobic) while the composite is (Hydrophilic/hydrophobic)

A

hydrophilic…hydrophobic

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
3
Q

What is the middle layer in the adhesive joint

A

the adhesive

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
4
Q

How many surfaces (or adherents are in the adhesive joint

A

2

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
5
Q

Who was the first dentist to use adhesive dentistry and acid etched enamel

A

Michael Buonocore

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
6
Q

What did Dr. Ray Bowen discover

A

the 1st Bis-GMA matrix for composite resin

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
7
Q

What is the substrate of tooth-to-resin adhesion

A

enamel and dentin

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
8
Q

Enamel is what percent mineral by weight? Organic?

A

95%…4%

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
9
Q

Is enamel completely hydrophobic like resin

A

no- but if fairly hydrophobic

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
10
Q

(T/F) Hydroxyappatite forms prisms which makes up enamel

A

t

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
11
Q

Dentin is what percent mineral by weight? Organic?

A

70%…20%

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
12
Q

Which is more hydrophilic, enamel or dentin

A

dentin

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
13
Q

(T/F) Dentin is a fairly static substrate with age

A

F- its always changing and thus is dynamic

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
14
Q

Dentin has a __ structure

A

tubular

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
15
Q

Dentinal tubules contain…

A
  • Odontoblasts (1/3rd into the tubule)
  • Fluids
  • Nerves
How well did you know this?
1
Not at all
2
3
4
5
Perfectly
16
Q

Peritubular dentin is (more/less) mineralized than interlobular dentin

A

more

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
17
Q

Intertubular dentin is rich in __ and is ideal for what?

A

collagen fibers… hybridization

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
18
Q

(peritubular/intertubular) dentin makes up the bulk of dentin

A

intertubular

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
19
Q

Current adhesives provide bonding to (hydrophilic/hydrophobic) substrates

A

both

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
20
Q

The old classification system of adhesives was based on…

A

-Time of appearance in the market

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
21
Q

What is the current adhesives classification system

A
  • How many clinical application steps there are

- Underlying adhesive strategy (i.e etch and rise v.s self etch) etc

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
22
Q

In a self etch system the acidic nature of the __ is integrated

A

monomer

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
23
Q

Another word for etch is…

A

conditioner

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
24
Q

Etch is an acid that performs two roles, what are they

A
  • clean and prepare the surface

- Remove smear later and mineral from the surface

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
25
Q

The primer is (hdrophyilic/hydrophobic)

A

both it is amphipathic

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
26
Q

The primer is made up of

A

monomers and solvent carriers

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
27
Q

What does the primer infiltrate

A

The exposed collagen network

28
Q

The role of the primer is to displace the __ and link to __

A

moisture…hydrophobic adhesive

29
Q

The adhesive is made of

A

hydrophobic resin monomers

30
Q

The role of the adhesive is to…

A

provide links to the composite resin

31
Q

For etch and rinse systems there are two different types which vary in

A

the number of steps performed by the dentist

32
Q

The 2 step etch and rinse system involves

A

Etch (conditioner) + Primer/adhesive

33
Q

The 3 step etch and rinse system involves

A

Etch + Primer + Adhesive

34
Q

Other that the etch and rinse system, what is the other adhesion system

A

Self etch

35
Q

Describe the 2 step self etch system

A

self etching primer + adhesive resin

36
Q

Describe the 1 step self etch system

A

Etch/primer/adhesive all in one

37
Q

What is a negative about the 1 step self etch system

A

bad shelf life

38
Q

What is the hybrid layer

A

where the collagen fibers and adhesive monomers come together

39
Q

(T/F) Etching of enamel and dentin must be performed to achieve adhesion with resin

A

t

40
Q

What are three different substances used for etching

A

acids, lasers, and air abrassion

41
Q

Who developed the acid etch technique?

A

Buonocore

42
Q

Acid etch time depends on

A

the pH (conc. of acid)

43
Q

(T/F) Etching removes the smear layer and closes the dentin tubules

A

F- it opens the dentin tubules

44
Q

There are 4 different types of acids used for etching there are 2 organic and two inorganic what are they?

A

Organic

  • Citric acid
  • Malic acid

Inorganic

  • Nitric acid
  • Phosphoric acid
45
Q

The effect of the acid etch depends on what factors

A
  • Type of acid
  • Acid conc. and pH
  • Etching time
  • Form of etchant (i.e gel, aqueous, etc)
  • Rinse time
  • Method of activation of the etchant (i.e rubbing)
  • Chemical composition and condition of enamel
  • Whether enamel is instrumented before etching
46
Q

Etching primarily removes (inorganic/organic) material

A

inorganic

47
Q

(T/F) acid etch results in an increase in surface area for enamel but not dentin

A

f- increases SA in both enamel and dentin

48
Q

(superficial/deep dentin) has larger tubules

A

deep

49
Q

(Superficial/deep) dentin has a greater amount of intertubular dentin verses peritubular dentin

A

superficial

50
Q

(Superficial/deep) dentin has a greater amount of peritubular dentin verses peritubular dentin

A

deep

51
Q

Primers are needed in (dentin/enamel)

A

dentin

52
Q

(Superficial/deep) dentin has higher bonding strength

A

superficial

53
Q

Primers contain bifunctional __ such as __ that are dissolved in __

A

monomers…HEMA…solvents (acetone, ethanol, etc)

54
Q

What is the purpose of the solvent in the primer

A

they are highly volatile and displace water from the dentin

55
Q

Adhesives have a (low/high) viscosity

A

low

56
Q

Adhesives serve as __ retention

A

micromechanical

57
Q

Adhesives are (hydrophobic/hydrophylic)

A

phobic

58
Q

What is the role of adhesive resin

A

stabilizes the hybrid layer

59
Q

What does the adhesive resin form

A

resin tags

60
Q

What are two hydrophobic and highly viscous adhesive resins

A

Bis-GMA and UDMA

61
Q

What are two hydrophylic and less viscous adhesive resins

A

TEG-DMA and HEMA

62
Q

The hybrid layer is composed of…

A

resin, collagen, and partially demineralized dentin

63
Q

Steps to apply etchant

A
  • Apply to a clean, dry tooth
  • Apply 1 mm beyond the margin
  • Apply to enamel first then dentin (15 seconds on enamel)
  • Rinse
64
Q

Primer application

A
  • Cover all etched surface
  • Apply many coats
  • Evaporate solvent by air thining
65
Q

Adhesive application

A
  • Paint even coat
  • Air thin
  • Light polymerize for 20 sec

Direct/Cariology (20 decks)

Brainscape helps you reach your goals faster, through stronger study habits.
© 2024 Bold Learning Solutions. Terms and Conditions