Ceramics

Question 1

Indirect Ceramic Restorations

Answer 1

crowns, bridges, jacket crown, vaneers, inlays/onlays, dentures

Question 2

Ceramic Properties

Answer 2

Mechanical - porcelain = brittle
Thermal - electric/thermal insulators
Harder than tooth
Esthetically pleasing

Question 3

Optical Properties of Ceramics

Answer 3

Translucency - light reflection

Chroma - degree of saturation (shades A-D)

Question 4

Ceramics - how they’re made

Answer 4

Inorganic metal oxides baked at high temp to fuse small particles together

Question 5

Glass Based Ceramics:

Answer 5

Porcelain, Leucite, Lithium Discilicate (strongest)

Question 6

Non-Glass Ceramics:

Answer 6

Zirconia

Question 7

PFM advantages

Answer 7

good mechanical properties, precise fit, colors/shades, stain resistant

Question 8

PFM disadvantages

Answer 8

opaque - light not transmitted through wear - opposing enamel or restorations

Question 9

Porcelain Vaneers advantages

Answer 9

esthetics, fix spacing/gaps, reshapes teeth, cracks, covers stain, evens/adds length
*high fracture rate

Question 10

Lumineers

Answer 10

.02mm reduction of tooth structure - - compared to 3-5mm for vaneers

Question 11

Role of RDH: Ceramics

Answer 11

assess/identify, administer professional care, ensure proper OSC, continued ed.
+use sharp curettes, no scalers, ultrasonic only in sulcus, avoid air polishers

Question 12

How to identify Ceramics

Answer 12

explorer, light strokes, air, illumination, radiographs

Question 13

Ceramics considerations

Answer 13

margins, crown contour, improper temps.

*gingival health important

Question 14

Polishing/Stain removal Ceramics

Answer 14

no coarse/medium paste, aluminum oxide strips, floss paste interproximal

Question 15

Composite Paste

Answer 15

aluminum oxide paste

Question 16

Porcelain paste =

Answer 16

diamond polishing paste

Question 17

Neutral NaF + ceramic/composite

Answer 17

acidulated fluoride may etch *