Brainscape's Knowledge GenomeTM

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


See full index

Operative > Principles of Operative Dent > Flashcards

Principles of Operative Dent Flashcards

1
Q

Treatment of disease/defects of hard tissues of teeth that DO NOT REQUIRE FULL COVERAGE RESTORATION; Restores FORM, FUNCTION, and ESTHETICS

A

Operative Dentistry

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

Thickness of _____ varies by location and tooth type

A

Enamel

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

_____ have larger diameter near the surface and smaller near dentin borders; run perpendicular to long axis

A

Enamel rods

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

T/F: DO NOT LEAVE UNSUPPORTED ENAMEL

A

True

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

Can act as food/bacterial trap; Lead to decay

A

Fissures

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

______ are hypomineralized that extend into enamel

A

Enamel tufts

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

____ are thin faults between enamel rod groups that extend from enamel toward DEJ

A

Enamel lamellae

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

_____ are odontoblastic process crossed into enamel

A

Enamel spindles

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

Enamel is ____ soluble as you approach the DEJ

A

More soluble

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

_______ is Largest Portion of tooth, Forms walls of pulp chamber, Formed immediately prior to enamel, DEJ->pulp, Dentin formation continues throughout the life of the pulp, and Located in both coronal and root portions of tooth

A

Dentin

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

Dentinal tubules are lined with _______

A

peritubular dentin

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

Canals extending from DEJ/DCJ to pulp, Lined with peritubular dentin, Intertubular dentin, Diameter of tubules largest at pulp, Number of tubules/square mm greatest at pulp

A

Dentinal tubules

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

_____ are formed from secondary odontoblasts that respond to moderate irritant

A

Reparative dentin

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

Primary dentin that has changed (become more calcified); peritubular dentin widens and fills with calcified material

A

Sclerotic dentin

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

Fluid movement in the dentinal tubules causes _____

A

dentinal sensitivity (pain)

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
16
Q

Hardness averages 1/5 that of enamel, Harder near DEJ than near pulp (3x), and 50% hydroxyapatite

A

Dentin

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

Odontoblastic process wrapped in nerves and fluid in dentinal tubules and Enamel/cementum removed during preparation= seal is lost Causing small fluid movements in tubules= distortions in nerve endings leading to pain

A

Hydrodynamic Theory of Pain Transmission◦

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

_____ is created whenever dentin is cut

A

Smear layer

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

____ is Gray, semi-translucent, Color depends on underlying dentin, Becomes temporarily whiter when dehydrated, and Shiny

A

Enamel

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

_____ is Yellow-white, Dull, opaque

A

Dentin

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

_____ is Softer than dentin and Formed continually

A

Cementum

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

Remove defects, Provide necessary protection to pulp, Extend restoration as conservatively as possible, Resist fracture when chewing, and Restore esthetics and function are objectives of _____

A

tooth preparation

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

T/F: In tooth prep, extend to sound tooth structure in all directions

A

True

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

Prep walls are designed to _____ restoration and ______ fracture

A

Retain restoration and resist fracture

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

____ is used to Remove remaining caries or old restorative material, Protect pulp, Minimize fracture, maximize retention, Finish walls and margins, and Final cleaning, inspection, sealing prep

A

Tooth prep

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

______ is a factor to consider in tooth prep including Enamel Rod orientation, Thickness of enamel and dentin, Size, location of pulp, Relationship of tooth to periodontium

A

Dental Anatomy

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

In operative dentistry, the goal is to ____ damage but _____ vitality

A

repair damage but preserve vitality

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
28
Q

What are the 3 locations of primary caries?

A

Pit and fissure, enamel smooth surface, and root surface

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
29
Q

_____ are caries left by the operator either intentionally or accidentally

A

Residual caries

30
Q

Residual caries is not accepted when left at ____ or on prepped ____ tooth wall

A

DEJ or prepped enamel tooth wall

31
Q

microleakage present at the junction between restoration and tooth may progress under the restoration or behind it so it cannot be seen with a radiograph

A

Recurrent caries

32
Q

Formed by odontoblasts at end of tubules at surface of pulp In response to irritation

A

Reparative dentin

33
Q

____ caries are rampant and are light colored

A

Acute caries

34
Q

___ caries are slow or arrested with a dark color

A

Chronic caries

35
Q

One tooth surface involved

A

Simple

36
Q

2 surfaces of tooth involved

A

Compound

37
Q

Three or more tooth surfaces involved

A

Complex

38
Q

____ wall of a tooth prep is an internal wall that is parallel to the long axis of the tooth

A

Axial wall

39
Q

____ wall of a tooth prep is an internal wall that is perpendicular to the long axis of the tooth; closest to pulp

A

pulpal wall or floor

40
Q

_____ and _____ floors/walls provide stabilizing seats for restoration and distribute stresses in tooth

A

Pulpal and gingival floors/walls

41
Q

Where do you want the forces to be directed on the tooth?

A

along the long axis of the tooth

42
Q

Junction of two walls/surfaces along a line

A

Line Angle

43
Q

Junction of three surfaces

A

Point angle

44
Q

Junction of PREPARED cavity wall and EXTERNAL surface of tooth

A

CAVOSURFACE angle or margin

45
Q

_____ is Formed by full length enamel rods; Enamel rods’ inner ends are on sound dentin

A

Enamel Margin Strength

46
Q

When enamel rods are not supported by sound dentin, should you do? Why?

A

Remove from preparation bc Brittle, fracture easily

47
Q

Class of tooth prep involving occlusal surface

A

Class I

48
Q

Class of tooth prep involving proximal surfaces of premolars and molars

A

Class II

49
Q

Class of tooth prep involving proximal surfaces of incisors and canines that don’t involve incisal edge

A

Class III

50
Q

Class of tooth prep involving proximal surfaces of incisors and canines that involve incisal edge

A

Class IV

51
Q

Class of tooth prep involving gingival 1/3 of smooth surfaces

A

Class V

52
Q

Class of tooth prep involving incisal edge or cusp

A

Class VI

53
Q

____ refers to resistance to fracture

A

Resistance

54
Q

____ refers to the restoration staying in place

A

Retention

55
Q

_____ refers to the ability to access the area

A

Convenience

56
Q

Outline Form, Initial depth, Primary resistance form, Primary retention form, and Convenience form are part of the ____ stage

A

Initial stage

57
Q

Remove shallow enamel fissure or pit; Creates smooth, saucer shaped surface= self-cleansing; NO MORE THAN 1/3 ENAMEL THICKNESS REMOVED

A

Enameloplasty

58
Q

When margin exceeds 2/3 of the distance between central groove and cusp tip, ____________

A

MUST CAP WEAK CUSPS

59
Q

When margins end ½ distance between central groove and cusp tip, ______________

A

CONSIDER CAPPING WEAK CUSPS

60
Q

Floors of tooth preps should always be _____

A

Flat

61
Q

Should there be any sharp areas of tooth prep?

A

No

62
Q

T/F: You must allow for sufficient thickness off restorative material

A

True

63
Q

____ refers to resistance to fracture

A

Resistance form

64
Q

____ prevents tipping and proximal displacement

A

Dovetail

65
Q

_____ resists pull of sticky foods in regard to tooth preps

A

Wall length

66
Q

_____ use micromechanical retention between adhesive and tooth

A

Bonded restoration

67
Q

____ dentin is demineralized, usually discolored but not soft; ok to leave

A

Affected dentin

68
Q

____ dentin is soft, contains microorganisms, may or may not be stained, must remove

A

Infected dentin

69
Q

____ position should be used to access Buccal sides of patient’s UL and Lingual sides of patient’s LR

A

8:00 position

70
Q

____ position should be used to access Buccal sides of patient’s UR and Lingual sides of patient’s LL

A

11:00 position

71
Q

____ position should be used to access Buccal sides of patient’s R and L anterior and Lingual sides of patient’s R and L anterior

A

12-1 position

Operative (12 decks)

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