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Dental Assisting · CDIPC

DANB Certified in Dental Infection Prevention and Control Examination Practice Test

Dental infection prevention and control involves interrupting pathogen transmission across patient care, instrument processing, environmental surfaces, and staff safety. The CDIPC practice page covers practical decisions such as maintaining clean-to-dirty workflows, handling contaminated items, protecting medication supplies, managing bloodborne exposures, and responding to airborne infection risks in a dental setting.

Exam overview

Exam providerDental Assisting National Board
Exam codeCDIPC
CategoryDental Assisting

About the DANB Certified in Dental Infection Prevention and Control Examination Exam

Effective infection control requires matching procedures to the transmission risk and the item being handled. Dental teams must distinguish critical, semicritical, and noncritical patient-care items when selecting reprocessing steps; keep sterilized packs dry and intact; and prevent contamination during operatory setup and medication preparation. PPE choices should reflect anticipated exposure, while hand hygiene and glove changes help limit cross-contamination between tasks and patients. Other relevant decisions include immediate response to a needlestick, safe handling of blood-contaminated items that cannot be reprocessed, and appropriate precautions when a patient may have an airborne infection. Environmental practices also extend to managing amalgam waste and maintaining separation between clean supplies and contaminated instruments. These skills support consistent workflows, safer patient care, and protection of dental personnel.

Sample Practice Questions

Review a selection from this exam's published US Practice Tests practice bank.

Question 1

A dental unit has an amalgam separator installed. Which practice supports appropriate management of amalgam waste?

  1. APlace amalgam scraps and used capsules in regular trash
  2. BRinse amalgam residue into the sink after each procedure
  3. CCollect amalgam waste in a designated, closed container and follow applicable disposal requirements
  4. DMix amalgam waste with infectious waste for routine disposal
Show answerCorrect answer: C

Amalgam waste should be collected and managed separately according to applicable requirements; it should not be discharged to drains or placed in regular trash when regulated handling applies. A designated container helps keep the waste contained for proper recycling or disposal.

Question 2

Which action best reduces the risk of contaminating clean supplies during operatory setup?

  1. AOpen supplies before hand hygiene so packaging is ready
  2. BPlace clean supplies beside used instruments for convenience
  3. CPerform hand hygiene and use clean hands or gloves when handling clean supplies
  4. DReuse examination gloves if they look clean
Show answerCorrect answer: C

Hand hygiene and clean handling help protect supplies from contamination. Used instruments should be kept separate from clean supplies, and examination gloves are single-use.

Question 3

A package comes out of a steam sterilizer damp. What is the appropriate response before storing or using it?

  1. AUse it immediately if the indicator changed color
  2. BDry the package with a clean towel and store it
  3. CTreat the package as compromised, investigate the cause, and reprocess the instruments as needed
  4. DPlace it in a second pouch while it is still damp
Show answerCorrect answer: C

A wet package can be contaminated as moisture moves through packaging. It should not be stored or used as sterile; identify and address the cause, then reprocess the contents according to established procedures.

Question 4

A dental team member prepares an injection. Which practice best helps prevent contamination of the medication vial?

  1. AUse the same syringe for multiple patients if the needle is replaced
  2. BUse a new sterile needle and syringe for each entry, and never reuse them for another patient
  3. CWipe the syringe barrel with disinfectant between patients
  4. DLeave a used needle attached to the syringe until the vial is finished
Show answerCorrect answer: B

A needle and syringe are single-use for one patient. Reusing either can transfer blood or other contamination into a medication vial or to another patient, even if the needle is changed.

Question 5

A dental team is selecting a reusable protective gown for a procedure with a substantial risk of blood splashes. Which feature is most important?

  1. AThe gown is made of a material and design that provide appropriate fluid protection for the anticipated exposure
  2. BThe gown is the same color as the clinic's uniforms
  3. CThe gown can be worn repeatedly without laundering if no stains are visible
  4. DThe gown has short sleeves so the wrists remain exposed
Show answerCorrect answer: A

Protective apparel should be selected to provide fluid protection appropriate to the anticipated exposure. Reusable gowns should be handled and laundered appropriately; visible cleanliness alone does not establish that a contaminated gown is safe to reuse.

Question 6

When should a dental worker change gloves during patient care?

  1. AOnly when a glove has a visible tear
  2. BBetween patients and whenever gloves are torn or their integrity is otherwise compromised
  3. CAt the end of the workday
  4. DAfter rinsing them with water between procedures
Show answerCorrect answer: B

Gloves are single-use barriers. They must be changed between patients and promptly replaced if torn or compromised; washing or disinfecting gloves does not make them reusable.

Question 7

A patient-care item has been contaminated with blood and is made of material that cannot be reliably cleaned or disinfected. What is the appropriate approach?

  1. ADiscard it as regulated medical waste when required by applicable rules and facility policy
  2. BPlace it in a clean storage area until the blood dries
  3. CWipe it once with a dry towel and return it to service
  4. DUse it only for the same patient at a later appointment
Show answerCorrect answer: A

Items that cannot be reliably cleaned and disinfected should not be returned to patient care. Dispose of them according to their classification, applicable regulations, and facility policy; blood contamination does not make an item safe simply by drying.

How to use this practice test

The free practice bank contains 50 questions, with up to 20 random questions in a session. Answer scenario-based items on instrument handling, PPE, exposure response, operatory setup, and related infection-control decisions, then review the results shown after the session to identify areas for focused practice.

Preparation tips

  • Map each reusable patient-care item to its appropriate cleaning, packaging, sterilization, and storage steps; pay attention to wet or damaged packages.
  • Practice identifying moments for hand hygiene and glove changes, especially when moving between contaminated and clean tasks or handling medication supplies.
  • Review the immediate steps after a needlestick or other occupational exposure, including prompt reporting and follow-up procedures.
  • Compare precautions for airborne infection risks with routine operatory controls, and consider when nonurgent care should be deferred.
  • Study safe handling pathways for blood-contaminated items that cannot be reprocessed and for dental amalgam waste.
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