Numbers

Question 1

What’s the initial depth of Class I in DEJ?

Answer 1

0.2 mm (for posterior teeth: 1.5 - 2.0 mm)

Question 2

How deep in DEJ for Class II?

Answer 2

0.2 mm

Question 3

What is the axial wall for Class III into dentin?

Answer 3

0.2 mm

Question 4

What is the depth of a Lingual prep inside DEJ?

Answer 4

0.2 mm

Question 5

What are the dentinal depths of the Axial wall of the proximal box?

Answer 5

Crown: 0.5 - 0.6 mm
Root: 0.75 - 0.8 mm

Question 6

How much should be the remaining dentin thickness to place Resin Modified Glass Ionomer (RMGI) cement?

Answer 6

0.5 -1.5 mm

Question 7

How much should be the remaining dentin thickness to place Calcium Hydroxide liner?

Answer 7

0.5 mm

Question 8

How much is the width for bevelling?

Answer 8

0.5 - 2.0 mm

Question 9

What is the angle to the

external surface when bevelling?

Answer 9

45-degree angle

Question 10

How wide are the slots?

Answer 10

1 mm

Question 11

How deep are the slots?

Answer 11

1 mm

Question 12

How much is the length of the slots?

Answer 12

2 - 4 mm

Question 13

How much are the slots in DEJ?

Answer 13

0.5 – 1.0 mm

Question 14

What is the pinhole position relative to the DEJ?

Answer 14

1 mm in dentin

Question 15

What is the pinhole position relative to the external tooth surface?

Answer 15

1.5 mm

Question 16

How much is indicated for the axial depth inside the DEJ if retentive grooves are required?

Answer 16

0.5 mm

Question 17

How much to establish (ideally) with adjacent proximal surface facially, lingually, and gingivally?

Answer 17

not more than 0.5mm

Question 18

What is the preparation of functional cusps and non-functional cusps for a complex amalgam?

Answer 18

functional cusps: 2 mm

non functional cusps: 1.5 mm

Question 19

What is the pinhole depth?

Answer 19

around 2 mm

Question 20

How long should you condensate amalgam?

Answer 20

2.5 - 3.5 min

Question 21

What is the initial depth of Class V restoration?

Answer 21

0. 5 mm in DEJ

0. 75 - 0.8 mm in cementum for root caries

Question 22

Recommended mesiodistal width of lingual extension of class I, OL?

Answer 22

1 mm

Question 23

How much is the thickness of ferrule dentin?

Answer 23

1 mm

Question 24

How much is the height of ferrule dentin?

Answer 24

2 mm

Question 25

How far from the facial or lingual DEJ are the retention grooves and how deep?

Answer 25

From DEJ: 0.2 mm | Deep: 0.5 mm

Question 26

How much is the required gingival clearance for class II?

Answer 26

FROM ADJACENT TOOTH: 0.5 mm max | Facial must stay in contact

Question 27

What is the initial depth to DEJ for posterior teeth?

Answer 27

1.5 - 2.0 mm

Question 28

How long to light cure a composite?

Answer 28

40''

Question 29

How long to light cure adhesive?

Answer 29

20''

Question 30

How deep should the increments of a composite be?

Answer 30

2 mm

Question 31

How deep to prepare another pinhole from the original?

Answer 31

1.5 mm

Question 32

What should the cavo surface and marginal amalgam be far extensive prep class I?

Answer 32

Cavo surface 90 - 100 degrees | Marginal amalgam 80 degrees

Question 33

How close to the proximal surface should we extend in a class II?

Answer 33

0.8 mm away from cutting through the marginal ridge

Question 34

What should be the minimal distance from margin of cavity to proximal surface?

Answer 34

1.6 mm premolars | 2 mm molars

Question 35

What should be the maximum width at the isthmus of a cavity prep class I?

Answer 35

No more than 1/3 of intercuspal distance

Question 36

What is the initial depth of class I?

Answer 36

1.5 - 2 mm measured from the central fissure

Question 37

Which Bur do we use for class I restoration?

Answer 37

245

Question 38

Which Bur is used to make retention grooves in class II?

Answer 38

``` 1/4 round bur # 169 ```

Question 39

What should be the recommended isthmus width in class II on occlusal surface?

Answer 39

No wider than 1/4 intercuspal distance. It is wider than class I at proximal box

Question 40

What is the guideline for formation of the proximal box in class II?

Answer 40

extend gingivally past either caries or occlussal contact (whichever is deeper) 2/3 expense of enamel 1/3 expense dentin

Question 41

What is the minimum thickness of a Class I amalgam restoration? a. There is no minimum thickness. b. 1mm. c. 1.5mm. d. 2.5mm.

Answer 41

c. 1.5mm