Liz Maas
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Liz Maas
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GDS OPERATIVE Class 1-6, rubber dam, hand tools

Question 1 of 12

1

Which of the following are components of the outline form?

Select one or more of the following:

  • .5mm into dentin

  • 1mm FL width

  • FL walls slightly acute

  • integrity of marginal and oblique ridges when decay is not present

Explanation

Question 2 of 12

1

Which of the following lesions would be considered a Class I?

Select one or more of the following:

  • Occlusal surface of #19

  • Lingual of 9 on cingulum

  • Occlusal of 13

  • Facial groove of 31

  • Decay on facial surface, apical 1/3rd of 3

Explanation

Question 3 of 12

1

Which the of the following are components of the primary resistance form?

Select one or more of the following:

  • smooth pulpal floor

  • obtuse mesial and distal walls if present

  • acute facial and lingual walls

  • integrity of marginal and oblique ridges

  • removal of unsupported enamel

Explanation

Question 4 of 12

1

The purpose of resistance form it to resist the forces of mastication in order to prevent fracture of remaining tooth and the restorative material used. Convenience form allows for modification of the ideal outline form to ensure removal of all decay.

Select one of the following:

  • T/T

  • T/F

  • F/T

  • F/F

Explanation

Question 5 of 12

1

The cavosurface finish for amalgams are always 90 degree butt joints. Minimum depth for amalgam is always 1.7mm, even if that means exceeding .5mm into dentin.

Select one of the following:

  • T/T

  • T/F

  • F/T

  • F/F

Explanation

Question 6 of 12

1

Which of the following are internal walls?

Select one or more of the following:

  • pulpal

  • axial

  • mesial

  • distal

  • lingual

Explanation

Question 7 of 12

1

The axial wall is perpendicular to the long axis of the tooth. The pulpal wall is parallel to the long axis of the tooth

Select one of the following:

  • T/T

  • T/F

  • F/T

  • F/F

Explanation

Question 8 of 12

1

Which of the following is not an objective of tooth preparation?

Select one of the following:

  • Esthetics and color

  • removal of defects

  • conservation of natural structure

  • withstand forces of mastication

  • functional placement of restorative material

Explanation

Question 9 of 12

1

Which of the following are benefits of using a rubber dam?

Select one or more of the following:

  • Moisture control

  • Reduction of contamination

  • Prevention of aspiration/swallowing of foreign bodies by patient

  • Patient cannot talk to you

  • Cheek retraction, protection of soft tissues

Explanation

Question 10 of 12

1

Why would you not use a rubber dam?

Select one or more of the following:

  • Patient phobia

  • Patient has a cold

  • Too many missing or broken teeth

  • Teeth are very crooked (malposed)

  • Patient has asthma

Explanation

Question 11 of 12

1

Order of removal of rubber dam?

Select one of the following:

  • cut interproximals, remove the rubber dam holder, then the clamp, then gingerly pull the dam off

  • cut interproximals, then remove the clamp with the rubber dam still attached to the holder as a single unit

  • cut interproximals, cut ligating floss, remove clamp, remove dam holder, then remove the dam

  • Remove the clamp, remove the holder, then pull the dam off

  • It doesn't really matter. Do whatever as long as you leave no dam behind.

Explanation

Question 12 of 12

1

The rubber dam clamp jaws must go below the height of contour. The bow faces anteriorly.

Select one of the following:

  • T/T

  • T/F

  • F/T

  • F/F

Explanation

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