Op 2 - Cementation of Indirect Restorations

Question 1

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Question 2

What is the gap btwn an indirect fixed restoration and tooth filled with?

Answer 2

Luting agent or cement

Question 3

What 4 things do you check on the final crown?

Answer 3

Margins
Contour and contact
Shade
Occlusion

Question 4

The final step of the restorative treatment

Answer 4

Cementation

Question 5

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

Answer 5

Adhesive cementation

Question 6

What are the 3 mechanisms of cementation?

Answer 6

Non-adhesive luting (mechanical)
Micromechanical bonding
Molecular adhesion

Question 7

Fills gap and prevents entrance of fluids

Answer 7

Luting

Question 8

Lutum = ?

Answer 8

mud

Question 9

What type of cement?

No molecular adhesion

Answer 9

Non-adhesive luting

Question 10

What type of cement?

Holds the crown by engaging small irregularities on the surfaces of the tooth and restoration

Answer 10

Non-adhesive luting

Question 11

What type of cement?

Shearing or crushing the minute lateral projections of cement is necessary for the crown to be removed

Answer 11

Non-adhesive luting

Question 12

Give an example of non-adhesive luting cement

Answer 12

Zinc phosphate cement

Question 13

What type of cement?

Engages into surface irregularities of both the tooth and restoration

Answer 13

Micromechanical bonding

Question 14

What type of cement?

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

Answer 14

Micromechanical bonding

Question 15

What type of cement?

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

Answer 15

Micromechanical bonding

Question 16

Give an example of micromechanical bonding cement

Answer 16

Resin cement

Question 17

What etch is used on enamel/dentin?

Answer 17

Phosphoric acid etch

Question 18

What etch is used on glass ceramic?

Answer 18

HF acid etch

Question 19

What material is alumina blasting used on?

Answer 19

Zirconia

Question 20

What type of cement?

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

Answer 20

Molecular adhesion

Question 21

What type of cement?

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

Answer 21

Molecular adhesion

Question 22

What type of cement?

Generally co-adjuvant to other retention strategies

Answer 22

Molecular adhesion

Question 23

What type of cement?

Limitation is hydrolysis of the bonding over time

Answer 23

Molecular adhesion

Question 24

Bifunctional molecule that bonds an organic material (like resin cement) and inorganic fillers (like silica from glass ceramic)

Answer 24

Silane

Question 25

What cement does silane fall under?

Answer 25

Molecular adhesion

Question 26

Which cement? Bacteriostatic, less soluble than ZnP, releases F-

Answer 26

GI cement

Question 27

Which cement? Bonds to tooth structure

Answer 27

GI cement

Question 28

Which cement? pH is lower than ZnP

Answer 28

GI cement

Question 29

Which cement? High sensitivity to hydration and dehydration

Answer 29

GI cement

Question 30

Which cement? Reasonable tensile strength

Answer 30

GI cement

Question 31

Which cement? 65% more retentive than ZnP

Answer 31

GI cement

Question 32

Which cement? Combines strength and insolubility of CR w/ fluoride release of GIC

Answer 32

Resin-modified GI cement

Question 33

Which cement? Reasonable flexural strength

Answer 33

Resin-modified GI cement

Question 34

Which cement? Sustained fluoride release for up to 30 days

Answer 34

Resin-modified GI cement

Question 35

Which cement? Very low post-op sensitivity

Answer 35

Resin-modified GI cement

Question 36

Which cement? Lower sensitivity to hydration + dehydration

Answer 36

Resin-modified GI cement

Question 37

Which cement? Indicated for: PFM and metal crowns Endo posts

Answer 37

Resin-modified GI cement

Question 38

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

Answer 38

Resin cement

Question 39

Which cement? Overall best mechanical properties

Answer 39

Resin cement

Question 40

Which cement? High tensile strength ensures micromechanical interlocking

Answer 40

Resin cement

Question 41

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

Answer 41

Resin cement

Question 42

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

Answer 42

Resin cement

Question 43

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

Answer 43

Resin cement

Question 44

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

Answer 44

Resin cement

Question 45

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