EFDA Rubber Dam Placement and Removal 2

Question 1

Which lubricant is applied to the rubber dam before placement to help it pass through tight interproximal contacts?

Accepted Answer

Water-based lubricant or shaving cream

Answer

Petroleum jelly (Vaseline)

Answer

Alcohol-based antiseptic

Answer

Zinc oxide eugenol paste

Question 2

A floss ligature is used in rubber dam placement to:

Accepted Answer

Secure the dam at the anterior tooth and guide it through interproximal contacts

Answer

Tie the dam securely to the frame

Answer

Remove excess dam material from the margins

Answer

Anchor the metal clamp to the tooth

Question 3

What is the primary purpose of the rubber dam napkin placed between the dam and the patient's face?

Accepted Answer

To provide patient comfort by absorbing moisture and cushioning the skin

Answer

To clean instruments passed over the patient

Answer

To absorb excess spray water from the dam surface

Answer

To hold the dam frame securely against the face

Question 4

A winged rubber dam clamp differs from a wingless clamp in that it:

Accepted Answer

Has lateral projections that hold the rubber dam during simultaneous placement of the clamp and dam

Answer

Has extra prongs that grip additional surfaces of the tooth

Answer

Can only be used on maxillary teeth

Answer

Does not require rubber dam forceps for placement

Question 5

If the rubber dam tears during a procedure, the EFDA should:

Accepted Answer

Remove and account for the torn piece, then replace the dam if necessary

Answer

Continue the procedure as isolation remains adequate

Answer

Apply additional clamps over the torn area

Answer

Pack cotton rolls against the tear and proceed

Question 6

The 212 'butterfly' rubber dam clamp is specifically designed for use on:

Accepted Answer

Partially erupted or severely broken-down teeth with minimal clinical crown

Answer

Fully erupted molars with complete coronal coverage

Answer

Anterior teeth and canines only

Answer

Deciduous (primary) molars exclusively

Question 7

Before removing the rubber dam at the end of the procedure, the EFDA should:

Accepted Answer

Cut all interdental septa of the dam with scissors before pulling it free

Answer

Remove all remaining cotton rolls and retractors first

Answer

Release the clamp first and then remove the dam in one piece

Answer

Remove the frame before loosening the clamp