NDAEB Clinical Support Procedures 3

Question 1

During a composite resin restoration, what is the dental assistant's primary responsibility when the dentist is etching the tooth surface?

Accepted Answer

Preparing the bonding agent for application

Answer

Mixing the composite material

Answer

Taking radiographs of adjacent teeth

Answer

Scheduling the next appointment

Question 2

Which suction technique is most appropriate when assisting during a surgical extraction in the mandibular posterior region?

Accepted Answer

Surgical suction tip positioned at the retromolar area with intermittent activation

Answer

Continuous high-volume evacuation at the surgical site

Answer

Intermittent low-volume suction near the tongue

Answer

No suction until the tooth is fully elevated

Question 3

When preparing a tray setup for a root canal procedure, which instrument would NOT typically be included in the initial access kit?

Accepted Answer

Lentulo spiral paste filler

Answer

Endodontic explorer (DG-16)

Answer

Rubber dam clamp forceps

Answer

High-speed handpiece with round bur

Question 4

What is the correct mixing time for zinc phosphate cement when used as a luting agent for a permanent crown in Canadian dental practice?

Accepted Answer

60-90 seconds incorporating small increments on a cool glass slab

Answer

30 seconds on a warm glass slab

Answer

15 seconds with a quick spatulation technique

Answer

2 minutes on a paper mixing pad

Question 5

During a four-handed dentistry procedure, the assistant is using the transfer zone technique. Where should instrument transfers occur relative to the patient?

Accepted Answer

Below the patient's chin at the transfer zone

Answer

Over the patient's chest

Answer

Over the patient's chin near the lower lip

Answer

Above the patient's forehead

Question 6

When assisting with an alginate impression of the maxillary arch, what should the assistant do immediately after the dentist seats the loaded tray?

Accepted Answer

Retract the patient's lip to check tray margins and support the tray if needed

Answer

Begin cleaning the mixing area

Answer

Take a photograph of the impression

Answer

Prepare the mandibular tray