Monthly Archives: November 2025
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November 12, 2025
Over the past week, I’ve received several emails from dental professionals asking about information they received during various IPAC sessions within the dental community, specifically around the placement and use of the Type V chemical indicator (CI).
Two common questions have emerged:
- Is a Class IV CI in a cassette sufficient?
- If a Class V is placed in all cassettes, is there still a need for a Type V in a Process Challenge Device (PCD)?
These questions are important. They show that people are listening, engaging, and wanting to do things right. But they also highlight why dismantling received information and fact-checking for evidence is essential in infection prevention and control (IPAC).
1. The Risk of Passive Acceptance
In the IPAC world, information travels quickly, especially when it’s shared confidently or