Pre-Preparation Contouring To Achieve Ideal Archform With IPS Empress® Veneers (©2005)

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1.
 The presentation demonstrates:
  a. the use of depth-cuts
  b.

contouring prior to the use of depth-cuts
  c.

the use of a veneer preparation technique to correct an arch alignment problem
  d. all of the above
     
2.

Recontouring in the context of the presentation involves:
  a. getting all of the teeth—at least those that are out too far to the facial—back into the arch
  b. preparation to align teeth to an ideal or close to ideal archform
  c.

bonding composite onto teeth that are placed too far to the lingual so you don’t over-prepare
  d. all of the above
   
3.
 Among reasons a patient may desire veneers:
  a.

concern that their smile may prevent getting some jobs
  b. missing teeth
  c. incisal edge wear and because the color of the teeth do not match
  d. both a and  c
   
4.
 The tooth preparation method that was shown:
  a. is known as the reverse-prep technique because you start at the gingival margin
  b. involves connecting depth-cuts
  c. avoids any incisal reduction that is more than 1 mm
  d. both a and b
   
5.
 Patients need to know that:
  a. orthodontics is the only ethical way to correct tooth alignment
  b. to straighten teeth in a misaligned arch with veneers may require a little more reduction than for a       normal veneer case
  c. going deeper into the dentin may result in the need for endodontic treatment
  d. both b and c
   
6.
 When preparing a tooth for a veneer with an old restoration such as an amalgam filling:
  a. simply prepare the amalgam as if it were the natural tooth
  b. remove the amalgam completely
  c. never restore a bicuspid by incorporating an inlay into a veneer if occlusal coverage is required
  d. all of the above
   
7.
 For the cord-placement technique that was demonstrated:
  a. styptic agents were used when placing a double-zero (Size 00) cord
  b. the first cord was flossed into place so as to use the cord-packing instrument the least amount possible
  c. both a and b
  d. none of the above
   
8.
 After placing the first cord:
  a. the tissue is retracted about 0.5 mm, exposing the margin
  b. gingival margins were finished with an electric handpiece at low speed without water
  c. a second “top cord” (left in place for 8 to 10 minutes) was used to get a good impression
  d. all of the above
   
9.
 After axial reduction:
  a. you are left with a slightly subgingival “quarter-circle” around the gingival margin
  b.

you are left with a “heavy chamfer or a slight shoulder” gingival margin
  c. you should follow-up with a round bur
  d. both a and b
   
10.

An “adequate” reduction in the gingival one-third:
  a. was about 0.75 mm for the case that was demonstrated
  b. eliminates one of the big problems in the dental laboratory
  c. helps to prevent bulky restorations and bad emergence profile
  d. all of the above
     
11.

The temporization that was demonstrated:
  a. involved the use of a diagnostic wax-up and lab-fabricated provisionals
  b.

was quickly accomplished using putty/wash template and a bleach-shade, bis-acryl composite
  c.

required the use of prefabricated shells
  d. none of the above
     
12.

When removing the temporaries:

  a. care was taken not to destroy them in case they had to be reused
  b. proactive bleeding control was shown using a putty material that contained aluminum chloride
  c.

a technique using only hemostats—instead of a diamond and crown remover—was shown
  d. all of the above
   
13.
 During the try-in process:
  a.

wetted pumice can be used instead of try-in paste

  b. a cement that slightly “opaques” the veneers should be used first for teeth “8” and “9”
  c. a translucent (“Shade 0”) was used
  d. none of the above
   
14.
 When using a self-etching primer:
  a. If you don’t etch the teeth with 37% phosphoric acid, the risk of post-operative sensitivity may decrease.
  b. it may cause the gingiva to turn white if it touches, but the whiteness is only temporary
  c.

compared to using 37% phosphoric acid, there is less chance of bleeding when bonding

  d. all of the above
   
15.

To help eliminate causes for a failure:
  a. close embrasures when placing provisionals and leave embrasures open when cementing veneers
  b. gingiva that has been irritated by provisionals will increase the chances of contamination when bonding
  c. both a and b
  d. none of the above
   
16.
 Contamination by blood or saliva at gingival one-third of the bonding site:
  a. prevents bonding and causes the veneer to crack or fall off
  b. may require veneer replacement due to micro-leakage or a black margin over time
  c. both a and b
  d. none of the above
   
17.
 Among cementation techniques tips that were NOT demonstrated include:
  a. use of an orangewood stick on the facial surface and edge of a veneer
  b. cementing teeth numbers 8 and 9 last
  c. tack and wave curing at the gingival margin
  d. use of a smooth-sided serrated strip between contacts
   
18.
 Which statement(s) is/ are true:
  a. floss with a knot in it can be used to remove interproximal cement
  b. always begin curing at the incisal edge
  c. always cement all of the veneers at the same time to avoid contamination problems
  d. both b and c
   
19.
 “Over-curing” porcelain veneers:
  a. should be avoided
  b.

is not possible

  c. causes opaque-looking veneers
  d. both a and c
   
20.

Regarding any bleeding during the bonding procedure:

  a. modern bonding materials eliminate this as a cause for concern
  b. this is the stage where you absolutely do not want any bleeding at all
  c. is not a problem with translucent cements
  d. none of he above