DANB CDA DANB CDA Dental Instruments and Equipment 3

Question 1

What does a dental unit waterline (DUWL) require to ensure patient safety?

Accepted Answer

Regular flushing, chemical treatment, and water quality testing

Answer

Daily flushing for 20–30 seconds only

Answer

Replacement every 6 months

Answer

UV sterilization of incoming water only

Question 2

Which instrument is used to place a rubber dam by stretching it over the clamp and through the punched holes?

Accepted Answer

Dental dam forceps

Answer

Dental dam punch

Answer

Dental dam frame

Answer

Dental floss ligature

Question 3

What does the OSHA Bloodborne Pathogens Standard require regarding contaminated sharps?

Accepted Answer

Dispose of sharps in puncture-resistant containers immediately

Answer

Recap needles using two hands after each use

Answer

Rinse sharps before disposal

Answer

Store sharps in regular trash if capped

Question 4

What is the purpose of a bite registration material in dentistry?

Accepted Answer

To record the occlusal relationship between maxillary and mandibular teeth

Answer

To take a full arch impression

Answer

To fabricate a temporary crown

Answer

To cement a final restoration

Question 5

What is the HVE (high-volume evacuator) used for during dental procedures?

Accepted Answer

To remove large volumes of fluids, aerosols, and debris from the oral cavity

Answer

To deliver irrigation water to the site

Answer

To dry the preparation with air

Answer

To apply suction only to the sublingual area

Question 6

Which instrument is used to measure the depth of the gingival sulcus or periodontal pocket?

Accepted Answer

Periodontal probe

Answer

Explorer

Answer

Curette

Answer

Scaler