The Benefits of CAD/CAM Restorations (© 2007)

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1.
 CAD/CAM technology:
  a. has been present in dentistry for the past twenty years
  b. is limited to all ceramic restorations
  c. is only available today as an in-office, chairside procedure
  d.

all of the above
     
2.
 Which is not true:
  a. you can utilize the CAD/CAM technology today without changing anything you do in the dental office
  b. CAD/CAM restorations can be made in the dental laboratory using your dental impressions
  c.

CAD/CAM stands for Computer Aided Design of Canines, Anteriors and Molars

  d. the hope of CAD/CAM is greater consistency and predictability of restorations
   
3.
 Examples of CAD/CAM digital systems include the following:
  a. Cerec®
  b. Procera®
  c. Cercon®
  d. all of the above, and including Lava® and Prismatik Clinical Zirconia™
   
4.

In the dental laboratory, the CAD/CAM process involves the following:

  a. the process starts with your model
  b.

your master model and opposing model are scanned
  c. a complete 360 degree three dimensional replica of all the teeth and prepared areas are created
  d. all of the above
   
5.
 CAD system software is used to:
  a. calibrate the margin location
  b. determine the correct occlusion
  c. digitally design the crown “on-screen”
  d. all of the above
   
6.
 Some benefits of digital design and computer assisted milling is/are that:
  a. for contacts, occlusion, and anatomy, human error is reduced by using pre-set protocols
  b. CAD/CAM milling is accurate down to 15 microns (one-quarter the thickness of a human hair)
  c. both a and b
  d. none of the above
   
7.
 Using IPS e.max CAD LT,  the latest technology, the case shows:
  a. the lab fabrication of a full-contour ceramic crown done by milling a lithium disilicate block
  b.

the use of a flexible fiber post for core build-up to minimize risk root fracture, was demonstrated
  c. the patients acceptance of the benefits of finishing-off a smile using no-prep veneers was discussed
  d. all of the above
   
8.
 Which of the following is false:
  a. when placing temps in the above case, gingival embrasures were opened to preserve the papilla
  b.

patient was impressed on the second appointment to allow for the effects on the tissue of temporization
  c. the KaVo sonic scaler was used to remove the Durelon that was used to cement temporaries
  d. none; all of the above are true
   
9.
 For a big esthetic case, it was observed that:
  a. the most important papilla in a smile is the mandibular anterior area
  b. by impressing on the second appointment, you can drop a margin down if the papilla recedes a bit
  c. preps should not be smoothed—modern luting cement requires a rough prep for mechanical retention
  d. all of the above
   
10.
 All of the following were discussed or demonstrated in the presentation, except:
  a. painless injections
  b. use of lab-fabricated temporaries
  c. the one-cord technique
  d.

no-prep veneers