Brainscape's Knowledge GenomeTM


Top Flashcards (Certified)
All Flashcards

PTD Beatriz > Chapter 2 B: General Concepts Of Cavity Preparations > Flashcards

Chapter 2 B: General Concepts Of Cavity Preparations Flashcards

1
Q

A tooth (cavity) preparation:

A

It’s a mechanical alteration of a tooth to make it:
1. Disease free
2. To give it a shape that can retain the restorative material

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

The restorative material in the cavity will?

A

Maintain the original morphology of the tooth and provide proper function and aesthetics
FAM

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

In the tooth preparation, we remove all the diseased tooth structure, avoiding?

A

Pulpal exposure

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

What occurs when the carious dentin remains at the same time as the restorative material is being placed?

A
  • pain
  • sensitivity
  • fracture of the restoration
  • caries progression

PSFC

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

The tooth is prepared in a way that ensures the ?

A
  • placement of margins of the restorative material into accessible areas, with sufficient retention for restorative material, and protection of vital pulp organ
How well did you know this?
1
Not at all
2
3
4
5
Perfectly
6
Q

What is a pathological cavity?

A

Empty space produced in the teeth by pathological, traumatic, or congenital processes

TPC

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

What is a therapeutic cavity?

A

Artificial space given to a tooth to rebuild it with appropriate materials and techniques that will return the anatomy, function, and aesthetics

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

We transform a ____ cavity into a ____ cavity?

A

Pathological —> therapeutic

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

Cavities can be classified into?

A

5:
1. Based on the number of tooth surfaces involved
2. Based on the location
3. Based on the filling material
4. Based on the purpose
5. Black’s classification (Etiological, localisation)

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

Based on the number of tooth surfaces involved:

A
  • simple, compound, and complex
How well did you know this?
1
Not at all
2
3
4
5
Perfectly
11
Q

A simple cavity preparation is?

A

One that only involves one tooth surface
Ex: occlusal

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

A compound cavity preparation is?

A

One that involves two surfaces
Ex: mesio-occlusal

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

A complex cavity preparation is?

A

One that involves more than 2 surfaces
Ex: MOD

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

Mostly Inter-proximal caries are?

A

Compound
Because there’s almost always an adjacent tooth that prevent you from accessing the proximal surface so you have to access through the occlusal surface, 2 surfaces

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

Based on the location:

A
  • occlusal: simple (O)
  • mesio-occlusal, disto-occlusal, buccal-occlusal: compound (MO, DO, BO)
  • mesio-occlusal-distal, mesio-occlusal-buccal: complex (MOD, MOB)
How well did you know this?
1
Not at all
2
3
4
5
Perfectly
16
Q

Based on the filling material:

A

5:
- cavities for amalgam
- cavities for CR
- cavities for direct gold
- cavities for GIC
- cavities for casting inlays

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

Based on the purpose:

A

3:
- cavities for prosthetic purposes
- cavities for prevention purposes
- cavities for therapeutic purposes

P 2 T

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

Based on Black’s classification:

A
  • in relation to the etiological forms of caries, more focused on the localisation of caries than it’s etiology
How well did you know this?
1
Not at all
2
3
4
5
Perfectly
19
Q

What is the most common and used cavity classification?

A

Black’s classification

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

A class I cavity is?

A
  • pit and fissure cavities occur in the occlusal surfaces of premolars and molars
  • the occlusal two-thirds of facial and lingual of molars
  • lingual surface of incisors
  • any other abnormal position
How well did you know this?
1
Not at all
2
3
4
5
Perfectly
21
Q

A class II cavity is?

A

Cavities in the proximal surfaces of premolars and molars

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

A class III cavity is?

A

Cavities in the proximal surface of anterior teeth no involving the incisal angle

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

A class IV cavity is?

A

Cavities in the proximal surface of anterior teeth involving the incisal angle

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

A class V cavity is?

A

Cavities in the gingival third of facial and lingual or palatal surfaces of all teeth

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
25
Cavities can be formed by?
- boxes - angles - walls BAW
26
Cavity boxes are?
Well defined spaces that will house the filling material
27
The shape of the box varies depending on?
The location of the lesion and the restorative material that will be used
28
Based on the shape, they can be?
Retentive or expulsive
29
A retentive box is?
Capable of maintaining the filling material without departing
30
An expulsive box is?
Which don’t maintain the filling material themselves
31
Boxes for amalgam are?
Retentive
32
Boxes for CR are?
Expulsive , rounded boxes
33
If a cavity is formed by 2 boxes, the joint is known as?
Isthmus
34
External walls are?
A wall in the prepared cavity surface that extends to the external tooth surface
35
What are the external walls?
Mesial, distal, lingual, and buccal
36
Internal walls are?
It’s a wall in the prepared cavity which is not extended to the external tooth surface
37
Pulpal wall is?
An internal wall that is towards the pulp, and covering the pulp, it may be both vertical and/or perpendicular to the long axis of the tooth
38
Axial wall is?
An internal wall which is parallel to the long axis of the tooth
39
The floor is?
A prepared cavity internal wall which is usually flat and perpendicular to the occlusal forces directed occlusogingivally Ex: pulpal and gingival walls
40
Floors provide?
Stability seats for the restoration that distribute the stress in the tooth structures
41
Angles are?
The confluence of the walls
42
2 walls form?
A line angle
43
3 walls form?
A point angle
44
Cavosurface margin is formed by?
The junction of the external surface of the tooth and a prepared cavity wall
45
The need for restoration is to
Repair a tooth after destruction mostly from caries
46
The restoration may be required in all cavities so that the tooth can perform ?
Proper function
47
The restorative procedure primarily repairs ?
The damage caused by caries and other destructive processes
48
The purposes of cavity preparation are?
8: 1. Removal of all the defects of enamel, dentin, and cementum 2. Prevent recurrences of the disease 3. Avoid falling of the restorative material 4. Prevent the material from moving into the cavity 5. Prevent fracture of the remaining tooth 6. Prevent fracture of the restorative material 7. To allow the placement of the restorative material 8. Protect the dentin-pulp complex
49
Should all tissue altered by decay be removed?
No, defensive tertiary dentin
50
Extension for prevention means?
The placing of margins of preparations at areas that would be cleaned by the excursions of food during chewing, to prevent secondary caries
51
Do we always do extension for prevention?
No, depends on the material
52
Where is the recurrence of decay most commonly seen?
Margins of the fillings
53
Extension for retention means?
To do a preparation so that the sealing material can not leave the cavity
54
Does amalgam have chemical adhesion?
No, it has frictional retention, a certain expansion
55
What kind of adhesion does CR have?
Adhesive
56
Extension for supporting means?
To prevent the material from moving into the cavity, it should stay in the cavity without movement
57
Displacement of the material causes?
Marginal sealing mismatch and filtration
58
Extension for resistance of the tooth means?
Weakened areas are eliminated to prevent fracture of the tooth
59
Extension for resistance of the material means?
Preparations must allow adequate thickness and location of cavo surface margin in favorable areas to prevent fracture of the restorative material
60
What does “ to allow the placement of restorative material” mean?
Sometimes an area of the tooth is eliminated to facilite the filling
61
Extension for pulp protection means?
Protect the dentin-pulp complex, avoid iatrogenic factors and eliminate bacterial infections
62
How many line and point angles do classes II and IV have?
11, 6
63
How many line and point angles do classes I and V have?
8, 4
64
How many line and point angles does class III have?
6 , 3

PTD Beatriz (9 decks)

Brainscape helps you reach your goals faster, through stronger study habits.
© 2025 Bold Learning Solutions. Terms and Conditions