Deck 34: Computerized Impression and Restorative Systems

Question 1

The advantage of the ability to use CAD impression re-scanning is

A) no additional material expenses.
B) time saved.
C) comfort for the patient.
D) insurance reimbursement.

Answer 1

no additional material expenses.

Question 2

Which of the following is a disadvantage of the CAD/CAM system?

A) The cost may be greater than traditional restoration procedures.
B) The patient must endure three long appointments.
C) The procedure requires an hour break within the appointment time.
D) The risk of infection is increased.

Answer 2

The cost may be greater than traditional restoration procedures.

Question 3

Which of the following restorations can be done using a CAD/CAM system?

A) inlays
B) onlays
C) posterior and anterior crowns
D) amalgams

Answer 3

inlays
onlays
posterior and anterior crowns

Question 4

In a CAD/CAM system, what tool is used to scan an image of the teeth into the computer?

A) scanner
B) laser camera
C) Cerec bloc
D) a or c

Question 5

Place the preparation steps in the correct order for a CAD/CAM restoration procedure: 1: Use aseptic procedures. , 2: Turn on and prepare the CAD system. , 3: Have the ceramic blocks ready for selection. , 4: Turn on and prepare the CAM system for the milling process.

A) 3, 1, 4, 2
B) 1, 2, 3, 4
C) 1, 3, 2, 4
D) 2, 1, 4, 3
E) 3, 4, 1, 2

Question 6

What is sometimes used to enhance the scanning process?

A) reflective powder
B) darkened room
C) articulation paper
D) lightened room

Question 7

The advantages of the CAD/CAM system include the following:

A) The procedure is completed in 1 day.
B) No impressions are taken.
C) The patient does not need to have provisional restorations.
D) The teeth being treated will have no pain or sensitivity.

Question 8

After the restoration is complete, the restoration is tried on the tooth to ensure the _____ are where the dentist wants.

A) margins, contacts, and occlusions
B) contacts, occlusions, and sealants
C) margins, cement, and gum lines
D) occlusions, amalgams, and margins

Question 9

Patient considerations are only providing the patient with the information he or she needs to understand the treatment and the time commitment involved.

Question 10

The construction of crowns and bridges is done in dental laboratories, where they use _____  to acquire a 3D record of the geometry of a preparation.

A) computer surface digitization (CSD)
B) computer disc (CD)
C) crown and bridge software (CBS)
D) 3D printer software

Question 11

Materials available for the dentist to choose from in using a CAD/CAM system include:

A) leucite-reinforced glass ceramic
B) fine  grained
C) feldspathic porcelain
D) polymer tubing

Question 12

Digital impressions are very _____ and can be transferred to the dental laboratory or CAM system rapidly.

A) accurate
B) sensitive
C) strong
D) thick

Question 13

If the dentist prefers to dedicate more time to the design process, then the patient would be scheduled for a second appointment, and the patient
would have to wear provisionals during that time.

Question 14

When using a digital impression, the dentist can mill the restoration in house or

A) send to a dental laboratory.
B) use a mobile CAD/CAM mill.
C) use a carrier service.
D) manually create the restoration in house from the impression.

Question 15

When the dentist or dental assistant creates the missing areas of the tooth, creating a virtual restoration, the process is called

A) reverse engineering.
B) finishing touches.
C) scaling.
D) filing in.

Question 16

While waiting for the anesthetic to be effective, the shade of the ceramic material block is selected using a ceramic shade guide.

Question 17

Which type of CAD/CAM imaging requires use of a spray with a light coat of opaquing medium?

A) blue light LED camera
B) red light laser camera
C) video camera
D) laser camera

Question 18

What model of the CAD/CAM restorative system has the ADA seal of approval?

A) CEREC 3
B) CEREC 2
C) CEREC 1
D) CEREC Standard

Question 19

The CAD/CAM system has allowed construction of crowns, bridges, and veneers to be completed in the office instead of a laboratory.

Question 20

After the dentist designs the digital restoration with the CAD software, it is sent to the

A) milling machine.
B) cementing machine.
C) engineering machine.
D) restorative machine.

Question 21

CAD/CAM appears on the computer as

A) a 3D color image.
B) a 2D color image.
C) line drawings in black and white.
D) a 2D black and white image.

Question 22

In some offices,  depending on the dental assistant training and skills, he or she may scan
the preparation to create the digital impression.

Question 23

What can be used to help the patient understand the CAD/CAM process?

A) Videos, pictures, or brochures for the patient to look at.
B) A website for the patient to go and retrieve information.
C) Notes on a bulletin board in the waiting room.
D) An orientation with the CAD/CAM representative.

Question 24

After the initial images are scanned into the computer, the next step is

A) the dentist prepares the tooth by  removing any existing  restorations and decay.
B) the digital image is sent to the mill or dental laboratory.
C) the dentist designs the replacement part.
D) the teeth are sprayed with opti spray.

Question 25

During the CAD/CAM procedure the dental assistant will assist the dentist, and make sure they have what they need to

A) complete the procedure.
B) start the procedure.
C) remove the tooth.
D) remove the cavity.

Question 26

It takes between 21-60 minutes to mill a restoration.

Question 27

Which of the following are considerations for the dental office?

A) Financial investment for equipment and training.
B) Learning curve for staff in using the equipment.
C) Training for staff, if not computer literate.
D) Cleanliness of environment required to operate the machinery.

Question 28

What is necessary for the Dental Assistant to remain a valued member of the dental team?

A) Continuing education in CAD/CAM technologies.
B) Maintaining a happy presence in the office.
C) Arriving on time.
D) Completing duties as assigned.

Question 29

For CAD/CAM procedures, in some offices the dental assistant sets up the

A) scanner
B) computer software
C) milling machine
D) suction machine

Question 30

Which of the following are reasons most dental offices are using CAD/CAM restorative procedures?

A) metal free, tooth colored restorative services
B) completed in one appointment
C) metal, tooth colored restorative services
D) completed in two appointments