DANB Dental Instrument Sterilization 3

Question 1

How often does the CDC recommend performing biological monitoring (spore testing) of dental office sterilizers?

Accepted Answer

At least weekly

Answer

Daily

Answer

Monthly

Answer

Only after sterilizer repair

Question 2

What is the primary purpose of using an enzyme-based cleaner during the pre-cleaning phase of instrument reprocessing?

Accepted Answer

To break down organic material such as blood and protein

Answer

To sterilize instruments before packaging

Answer

To lubricate instrument hinges

Answer

To test for residual microbial contamination

Question 3

What is the correct procedure when a biological indicator test comes back positive?

Accepted Answer

Remove the sterilizer from service and investigate the cause

Answer

Continue using the sterilizer and retest next week

Answer

Run three consecutive empty cycles to flush the chamber

Answer

Replace the biological indicator brand

Question 4

Which instrument packaging material is NOT acceptable for use in a steam autoclave?

Accepted Answer

Nylon/plastic pouches without paper backing

Answer

Sterilization wrap (CSR wrap)

Answer

Paper/plastic peel pouches

Answer

Sterilization cassettes with perforated lids

Question 5

What is the maximum recommended storage time for sterilized packs stored under optimal conditions per event-related shelf life principles?

Accepted Answer

Indefinite if packaging integrity is maintained

Answer

24 hours

Answer

30 days

Answer

6 months

Question 6

What temperature range is required for effective dry heat sterilization of dental instruments?

Accepted Answer

320-340°F (160-171°C) for 60-120 minutes

Answer

212-230°F (100-110°C) for 60 minutes

Answer

250-270°F (121-132°C) for 30 minutes

Answer

400-450°F (204-232°C) for 15 minutes