Ch. 14

Question 1

! ! The finish line will be a ____ type, maximum 0.5mm-0.75mm in depth. This can be accomplished using a round-ended tapered diamond

Answer 1

chamfer

Question 2

depth cutting bur, place the bur parallel to the long axis of the tooth in the ____ (1/3) region and reduce in a mesiodistal direction to form depth grooves. Once established, reduce similarly on the ____ (1/3) and ____ (1/3

Answer 2

cervical
mid-facial
incisal

Question 3

It is very important to remember that when the restoration is being used to increase the length of the tooth, ____ is not necessary.

Answer 3

incisal reduction

Question 4

Impression materials which yield a high degree of accuracy are the materials of choice (____, polyether and ____).

Answer 4

reversible hydrocolloid
polyether
polyvinylsiloxane

Question 5

! ! Always document the ____ shade, as well as the new shade ____, on the laboratory prescription. This allows the laboratory to see how much of a shade change is desired. For best results, color corrected lighting should be used for the shade selection.

Answer 5

existing

requested

Question 6

Chemical treatment of the veneers may be done in the laboratory or chairside.
____ treatment allows the practitioner more control.

Answer 6

chairside

Question 7

a. Clean the restoration thoroughly in water with ultrasonic agitation. Use acetone if the luting resin was used to verify the shade at evaluation.* (*If this is the case, do not expose the veneer to ____ which can result in premature polymerization) This cleaning step is especially important if the veneer was chemically treated !
! in the laboratory. Additionally, if the veneer was chemically treated in the ! ! laboratory, DO NOT proceed with steps 1c and 1d below.

Answer 7

light

Question 8

c. Apply porcelain conditioner (____) to the internal aspect of the veneer according to the manufacturer’s directions. Actual times will vary depending on the crystalline content of the porcelain. Feldspathic porcelain is typically etched 2 minutes with 9.8% hydrofluoric acid.

Answer 8

hydrofluoric acid

Question 9

d. Apply a thin layer of bonding resin to the preparation. ____, rather than air thin the bonding resin, because air thinning may inhibit polymerization. Do not polymerize this layer as it may interfere with complete seating of the veneer.

Answer 9

brush

Question 10

e. Apply composite resin luting agent to the internal surface of the veneer. Be very !careful to avoid trapping ____ in the resin. (Keep composite resin luting agent away from ____ to avoid premature polymerization)
f. Place the veneer gently on the surface of the tooth, making first contact at the ____ of the tooth, then rotating the veneer ____ until the veneer is positively seated (Figure 14-8)

Answer 10

air
light

incisal edge
cervically

Question 11

i. Hold the restoration in place while light-curing the resin. (Do not press on the ____ of the veneer as it may flex and break)
j. Cure resin cement (according to manufacturer’s recommendations) at least40 seconds for each area. Light cure the ____ surface of each veneer a minimum of 40 seconds, making sure that the light source is at ____ range. Then, light cure the ____ surface for a minimum of 40 seconds.

Answer 11

center
lingual
close
facial