EFDA Rubber Dam Placement and Removal 3

Question 1

For a patient with a confirmed latex allergy, which rubber dam material should be used?

Accepted Answer

Silicone or polyurethane non-latex dental dam

Answer

Non-latex dams made from silicone or polyurethane are commercially available and must be used for latex-allergic patients to prevent Type I hypersensitivity reactions.

Question 2

In what correct sequence are the components of the rubber dam system removed after the procedure?

Accepted Answer

Clamp → dam material → frame

Answer

The clamp is released first with forceps to relieve tension, the cut dam material is then removed from the teeth, and the frame is removed last.

Question 3

When isolating a single quadrant for a Class II posterior restoration, how many teeth are typically included in the rubber dam isolation?

Accepted Answer

Three to five teeth including the operative tooth and surrounding teeth

Answer

Isolating three to five teeth provides adequate access, visibility, and working space while maintaining a dry field for the proximal restoration.

Question 4

The split dam technique is used primarily when:

Accepted Answer

A standard clamp cannot be placed, such as when working near a fixed bridge pontic

Answer

The split dam technique places two separate pieces of dam material and uses floss ligatures rather than a clamp, making it useful in areas where a clamp cannot be seated.

Question 5

Which of the following is a contraindication to rubber dam placement?

Accepted Answer

A patient with severe nasal obstruction who cannot breathe through the nose

Answer

Severe nasal obstruction (from chronic congestion, asthma, or other conditions) prevents the patient from breathing comfortably with the rubber dam covering the mouth.

(EFDA) Expanded Function Dental Auxiliary Practice Test

(EFDA) Expanded Function Dental Auxiliary Practice Test

EFDA Rubber Dam Placement and Removal 3