Restorative dentistry

Question 1

intermediate expectancy of a restoration?

Answer 1

3-5 years

Question 2

Primary teeth have a longer or shorter clinical crown?

Answer 2

shorter

Question 3

buccal and lingual surfaces ___ towards the occlusal?

Answer 3

converge

Question 4

describe contact areas for primary teeth?

Answer 4

broad and flat

Question 5

enamel rods in the gingival 1/3 extend ___ from the DEJ

Answer 5

they extend OCCLUSALLY

SO this means no need to BEVEL the proximal box

Question 6

do you need to bevel the proximal box, if not, why not?

Answer 6

because the enamel rods extend occlusaly

Question 7

roots of primary are (longer/shorter0 and more slender?

Answer 7

LONGER and more slender and they FLARE more towards the apex

Question 8

in enamel, what layer is more pronounced?

Answer 8

APRISMATIC layer is more pronounced.

so different etching times and difference in adhesion of bonded materials perhaps?

Question 9

describe pulp horns in relation to the crown?

Answer 9

larger pulp horns in relation to the crowns

*Mesial pulp horn is closer tot he surface than the distal

Question 10

are max or man pulp chambers smaller?

Answer 10

MAX are smaller than mandible! think of sensitive top teeth

Question 11

Site of carious lesions in second molar max?

Answer 11

OL – -cuz it’s like the first permanent molar

Question 12

first molar max site of caries?

Answer 12

O

Question 13

where do you find carious lesions on the max and man central and laterals? canine?

Answer 13

canine on the buccal

lateral and centrals are on the mesial. WHY!?

Question 14

what is the distance for the max central and man central- pulp to the outer enamel crease?

Answer 14

1.7-1.9 not very far awaY!

Question 15

This material has decreased moisture senstivity?

Answer 15

GI

Question 16

Can GI bind to enamel and dentin?

Answer 16

yes

Question 17

Preferred use of GI???

Answer 17

temporary restorations

• caries control in high risk- class III and V in permanent teeth
• small CI I, II and III and V in primary teeth or situations where teeth cannot be isolated well

**Fjui IX and the viscous is easier to handle

Question 18

resin mod GI advantage?

Answer 18

improved wear restistance

Question 19

what are resin based composites classified by?

Answer 19

FILLER SIZE! its all about the size. micro, macro, hybrid.

**small can polish well, but large is for strength

Question 20

Flowable has what volumentratic filler percentage

Answer 20

LOWER… less filler so it flows like the river

Question 21

What is tricky about resin based composite?

Answer 21

thechinque sensitive and needs good isolation for moisture control.

Question 22

what is unique about primary teeth and technique for CI?

Answer 22

Bevel and dovetail needed for primary teeth class III

Question 23

if patient is HIGH risk with POOR OH and compliance, should you use Resin based composite?

Answer 23

no

Question 24

what kind of cement should you use for a full coronal restoration?

Answer 24

LUTING cement!
adhesive cement

**it’s bonded to the tooth so you need adequate bonding area, moisture control, and absence of hemorrhage

Question 25

ITR stands for what?

Answer 25

ITR= interim therapeutic restorations

Question 26

if patient has a class II in a primary molar, can you use composite?

Answer 26

no

Question 27

indication for a stainless steel crown?

Answer 27

3 or more surfaces of caries on a single tooth

recurrent caries

rampant caries

after pulp therapy

developmental defects- enamel hypoplasia

genetic developmental defects

CHIPPED OR FRACTURED MOLARS

Question 28

primary reason for sealant failure?

Answer 28

technique

Question 29

what is PRR?

Answer 29

preventative
if the caveated lesion does not extend into into the dentin

placement of a sealant in any radiating, non carious fissure or pits

Question 30

indications for sealants/

Answer 30

non carious primary molars, permanent molars, premolars, and anterior teeth with deep pits and or fissures