01 Restorative Flashcards Preview

D2: 622 Pediatric Dentistry > 01 Restorative > Flashcards

Flashcards in 01 Restorative Deck (37):
1

5 Advantages of Rubber Dam

Improved Child Management
Improved Working Conditions
Aseptic field for pulp treatment
Protection of Patient
Increased Efficiency

2

Key Factors of Rubber Dam Use

Set up prior to seating child
Obtain good local anesthesia
Explain the procedure
Place the rubber dam and frame as a unit
Ligate with floss

3

What teeth is the W8A clamp designed for?

Primary molars and some smaller permanent first molars

4

How are the jaws of the W8A clamp oriented?

Cervically

5

Which clamp has wings? The W8A or the 8A

8A

W stands for wingless

6

Which teeth is the 14A designed for?

Permanent first and second molars which are not fully erupted

7

What are the two rubber dam methods used?

Slit Dam

Individual Tooth

8

What is the main advantage, and the main disadvantage of the slit dam technique

Faster

Less Isolation

9

When using the slit dam technique, which holes do you punch out in the dam?

One hole for the most posterior tooth and a second hole for the most anterior tooth

10

Why are modification to restorative techniques needed?

To account for anatomic differences and different restorative materials

11

What is the most common mistake in the restoration of primary teeth?

Over-extension of the preparation

12

What is the treatment of choice when caries require excessive tooth structure to be removed?

Extra coronal SSC

13

4 Desirable characteristics of primary preparations

Conservative
Extended sufficiently to remove all caries
Prep design should provide adequate retention for resto. material
Pulpal floor should be of uniform depth and slightly rounded

14

What are the two primary restorative materials used

Amalgam
Composite

15

Which common adult restorative material does not hold up well

Glass Ionomer

16

Dimensions of a typical amalgam class I

1.5 mm depth

1/3 intercuspal width

17

3 considerations for class II preps

The buccal and lingual walls of the prep should converge toward the occlusal surface

The portions of the prep that extend into the buccal and lingual grooves and the marginal ridge area should be PARALLEL or slightly DIVERGE to preserve tooth strength

I deal width of isthmus is 1/3 intercuspal width

18

What is the ideal width of the floor of the box

1 mm

19

Axially, how should the proximal box be designed?

Slightly into dentin, so the axial wall is slightly undercut

20

Should you bevel the gingival line angle?

No

21

Which part of the box should be beveled?

Axio-pulpal line angle

22

What should you do if you think your class II prep is encroaching on the pulp?

Use a base material, like glass ionomer

23

What is essential for class II restorations

Matrix band

24

What type of matrix band is made of soft material in order to readily adapt to contours

Tee Band

25

What is another advantage of tee bands?

No intraoral apparatus is needed

26

What restoration step is critical when using a Composite material

Isolation and moisture control

27

What are the 7 Common errors for Class II Preps/Restorations

ON TEST FOR SURE

1. Failure to extend occlusal outline into all susceptible pits and fissures

2. Failure to follow the outline of the cusps

3. Isthmus cut too wide

4. Flair of proximal walls too great

5. Angle formed by the axial, buccal, and lingual walls too great.

6. Gingival contact with adjacent tooth not broken

7. Axial wall not conforming to the proximal contours of the tooth and the mesial distal width of the gingival floor is too great

28

What two burs are used for a class III restoration

No. 33.5 inverted cone OR a small round bur

29

Describe the shape of a class III preparation

Triangular, with the base of the triangle at the gingival area

30

How is retention created in the class III prep?

Via undercut by the shape of the bur

31

Why is dentin bonding less effective in primary teeth?

Less mineralization of tissue

32

When might a crown become indicated when working on a class III

If the incisal area becomes thin and you are looking at a class 4. Crowns are used instead of class IV's

33

Where are class III restorations not well retained

Maxillary anterior teeth

34

Where are class III restorations rarely retained

Mandibular teeth

35

When doing anterior restorations, what type of matrix is used

Mylar

36

What is critical to check before finishing composite resin restorations

that the prep is completely dry and free of contaminates such as blood

37

When evaluating a molar for a class V, when is a crown indicated?

If the caries extends beyond the line angles of the tooth into the interproximal areas