Op 2 - Cementation of Indirect Restorations

Question 1

What 4 things do you check on the final crown?

Answer 1

Margins
Contour and contact
Shade
Occlusion

Question 2

Improves retention of the restoration to the tooth, helps restore crown stiffness and improve mechanical and physical properties of the tooth-restoration complex

Answer 2

Adhesive cementation

Question 3

What are the 3 mechanisms of cementation?

Answer 3

Non-adhesive luting (mechanical)
Micromechanical bonding
Molecular adhesion

Question 4

What type of cement?

Engages into surface irregularities of both the tooth and restoration

Answer 4

Micromechanical bonding

Question 5

What type of cement?

Higher tensile strength (5x higher) than zinc phosphate (non-adhesive luting cement)

Answer 5

Micromechanical bonding

Question 6

What type of cement?

Effective micromechanical bonding by locking into microirregularities artificially created by phosphoric etch, HF etch, or alumina blasting

Answer 6

Micromechanical bonding

Question 7

Give an example of micromechanical bonding cement

Answer 7

Resin cement

Question 8

What type of cement?

Involves physical forces and chemical bonds btwn the molecules of different substances

Answer 8

Molecular adhesion

Question 9

What type of cement?

Physical = bipolar, van der waals
Chemical = iconic, covalent

Answer 9

Molecular adhesion

Question 10

What type of cement?

Generally co-adjuvant to other retention strategies

Answer 10

Molecular adhesion

Question 11

What type of cement?

Limitation is hydrolysis of the bonding over time

Answer 11

Molecular adhesion

Question 12

What cement does silane fall under?

Answer 12

Molecular adhesion

Question 13

Which cement?

Bacteriostatic, less soluble than ZnP, releases F-

Answer 13

GI cement

Question 14

Which cement?

Bonds to tooth structure

Answer 14

GI cement

Question 15

Which cement?

pH is lower than ZnP

Answer 15

GI cement

Question 16

Which cement?

High sensitivity to hydration and dehydration

Answer 16

GI cement

Question 17

Which cement?

Reasonable tensile strength

Answer 17

GI cement

Question 18

Which cement?

Combines strength and insolubility of CR w/ fluoride release of GIC

Answer 18

Resin-modified GI cement

Question 19

Which cement?

Reasonable flexural strength

Answer 19

Resin-modified GI cement

Question 20

Which cement?

Sustained fluoride release for up to 30 days

Answer 20

Resin-modified GI cement

Question 21

Which cement?

Very low post-op sensitivity

Answer 21

Resin-modified GI cement

Question 22

Which cement?

Lower sensitivity to hydration + dehydration

Answer 22

Resin-modified GI cement

Question 23

Which cement?

Indicated for:
PFM and metal crowns
Endo posts

Answer 23

Resin-modified GI cement

Question 24

Which cement?

Bis-GMA based and lower filler content, which makes it less viscous

Answer 24

Resin cement

Question 25

Which cement? Overall best mechanical properties

Answer 25

Resin cement

Question 26

Which cement? High tensile strength ensures micromechanical interlocking

Answer 26

Resin cement

Question 27

Which cement? Indicated for: Zirconia crowns LD crowns PFM/full metal crowns when need to improve retention

Answer 27

Resin cement

Question 28

Which cement? Recommended for non-vital teeth when retention is compromised, like short crowns

Answer 28

Resin cement

Question 29

Which cement? Shade selection of this cement is critical for anterior crowns and veneers

Answer 29

Resin cement

Question 30

Which cement? Self-adhesive, dual-cure, and light cured options

Answer 30

Resin cement