Cements + Adhesives

Question 1

Intermediary Material

Answer 1

material that occupies the space between tooth and restoration

Question 2

Indirect vs Direct Restorations

Answer 2

Indirect = crowns, inlays/onlays; Direct = amalgams, composites

Question 3

Luting

Answer 3

[primary/type 1] thin, loosely mixed cement to attach an indirect restoration. mechanical bond.

Question 4

Base

Answer 4

[secondary/type 2] thick. chemical + mechanical bond

Question 5

Temporary Restoration

Answer 5

cement mixed thick for emergency or temporary measure

Question 6

Cement Liner

Answer 6

thin, seals dentin, seals out bacteria, protects pulp, stimulates dentin formation
(Calcium Hydroxide [Dycal])

Question 7

Cement Base

Answer 7

thick, may irritate pulp, supports restorative material , thermal/electric protection (amalgam only)

Question 8

Pulp Caps

Answer 8

Indirect = suspected pulp exposure, cement not in contact w pulp ; 
Direct = exposure, cement on pulp

Question 9

Adhesive

Answer 9

[bonding to dentin/enamel] retention of restorations, reduce microleakage, reduce sensitivity/staining/recurrent decay. may cause initial sensitivity

Question 10

Powders

Answer 10

[base] Zinc Oxide / Powdered Glass

Question 11

Liquids

Answer 11

[acid] Eugenol / Phosphoric Acid / Polyacrylic Acid

Question 12

Activation Methods

Answer 12

Chemically
Light (longer working times)
Dual Core

Question 13

Calcium Hydroxide

Answer 13

[Dycal] soluble, mechanical bond, low strength base.

barrier for pulp: *stimulates odontoblasts (reparative dentin)

Question 14

Zinc Phosphate

Answer 14

[ZOP, Flecks] low solubility, mechanical bond, strong high comp strength, insulating base.

• irritating to pulp, needs liner.
• cool glass slab to slow exothermic reaction.

Question 15

Zinc Polycarboxylate

Answer 15

[Durelon] moderate solubility, chemical bond, low strength, neutral pH. - no microleakage.
shiny, loss of gloss means its setting.
used w fixed prosthodontics.

Question 16

Glass Ionomer

Answer 16

[Relyx] least soluble, chemical bond, strong.

• anticariogenic - releases fluoride ions.
  use: class 3, 5 or fixed restorations, core b/u, insulating base

Question 17

Zinc Oxide NON-Eugenol

Answer 17

[zone] temporary cement for restorations: crowns, bridges, etc.

Question 18

Zinc Oxide Eugenol

Answer 18

[ZOE, IRM] most soluble, temporary cement. sedative base for deep cavity. *obtundant
*cannot use with composite

Question 19

Composite / Resin

Answer 19

not soluble, chemical, strong.

many shades, used under crowns and ceramic restorations (aesthetics)