Infection Control and Safety Flashcards

Which type of sterilization monitoring provides the most definitive proof that sterilization conditions were met?

Answer: Biological indicator (spore test)

Biological indicators using Geobacillus stearothermophilus spores provide the gold standard proof that all sterilization parameters were achieved.

Environmental surface disinfectants used in dentistry must be EPA-registered as:

Answer: Hospital disinfectants

The CDC recommends EPA-registered hospital disinfectants for decontamination of clinical contact surfaces in dental settings.

What is the correct sequence for processing reusable dental instruments?

Answer: Clean → package → sterilize → store

Instruments must be cleaned to remove bioburden first, then packaged, then sterilized, and finally stored for use.

Which personal protective equipment must be changed between patients or when visibly soiled?

Answer: Gloves

Gloves are single-use items that must be changed between every patient and whenever torn, punctured, or visibly contaminated.

Dental unit waterlines can harbor biofilm primarily composed of which organism?

Answer: Pseudomonas aeruginosa and other water bacteria

Dental unit waterlines commonly harbor biofilm of environmental bacteria such as Pseudomonas aeruginosa, Legionella, and other waterborne organisms.

According to CDC guidelines, how often should biological monitoring of steam autoclaves be performed at minimum?

Answer: Weekly

The CDC recommends at least weekly biological monitoring of sterilizers in dental offices to verify their function.

A flash sterilization (unwrapped) cycle is appropriate for:

Answer: Emergency sterilization of an item needed immediately with no sterile alternative

Flash sterilization should be used only in emergencies when a needed instrument has no sterile replacement — it is not appropriate for routine processing.