Objective. The student will perform a complete patient-cycle infection-control routine from operatory preparation through final disinfection and instrument reprocessing while correctly identifying the DANB CDA Infection Control (ICE) exam content areas covered by each step.
This lesson, its worked examples and its practice questions has not yet been verified by a licensed clinician in the field or by a certification or approval body. It is a study draft and may contain errors. Do not use it to make decisions about any patient or medication. Always follow your instructor, your supervising professional, and current official references and regulations.
VoTechWorks program approval and accreditation are still in progress. Credentials are issued only by the certifying bodies named in each program, after their own exams.
By this point in the course you have studied each infection-control topic as its own unit—surface disinfection, instrument sterilization, PPE, regulated waste, and more. Today's lesson asks you to perform every step in one unbroken sequence, exactly as you will in a real operatory. This integrated approach matters for two reasons: patient safety depends on doing every phase correctly and in the right order, and the DANB Infection Control Examination (ICE) tests your knowledge across all those phases together.
Think of infection control as a continuous loop with seven linked phases. A break at any phase can compromise the entire cycle.
Phase 1 – Operatory Preparation (Pre-patient)
Begin with clean hands and no jewelry below the elbows. Inspect the operatory: all surfaces that may be touched during treatment must either be covered with a single-use barrier or disinfected with an EPA-registered, ADA-accepted surface disinfectant using a two-step (spray-wipe-spray-wipe) or product-specific protocol. Place fresh barriers on the light handle, headrest, chair controls, and any high-touch zone. Lay out a sterile tray or cassette. Document lot numbers and cycle indicators for any pre-sterilized instruments.
Phase 2 – Donning PPE
Put on PPE in order: protective clothing first, then mask, then eyewear, then gloves. Gloves go on last because they are the most contamination-sensitive item. Inspect gloves for visible defects. If gloves tear during treatment, change them immediately. PPE is your personal barrier between the patient's oral microorganisms and your body; it is also a regulatory requirement under OSHA's Bloodborne Pathogens Standard.
Phase 3 – Patient Treatment Support
Maintain sterile-field awareness. Avoid touching non-sterile surfaces with gloved hands; if you must, change or disinfect gloves before returning to the sterile field. Monitor for aerosol-generating procedures and apply additional respiratory protection if indicated by your office exposure-control plan.
Phase 4 – Managing Contaminated Instruments
At case end, never recap needles two-handed. Use a one-handed scoop or a mechanical device. Place sharps immediately into a closeable, puncture-resistant, biohazard-labeled sharps container that is no more than three-quarters full. Place contaminated instruments in a covered, leak-resistant container or instrument cassette. Transport to the processing area without sorting at chairside to minimize needlestick risk.
Phase 5 – Instrument Reprocessing Sequence
Reprocessing follows an exact order:
1. Pre-soak or enzymatic holding solution (prevents biofilm from drying)
2. Cleaning (ultrasonic cleaner or instrument washer preferred over hand-scrubbing to reduce sharps injury risk)
3. Rinsing
4. Inspection and packaging (wrap or pouch with internal and external chemical indicators)
5. Sterilization (autoclave/steam, dry heat, or chemical vapor per manufacturer's instructions)
6. Documentation (load number, date, cycle parameters, biological indicator results per office policy)
7. Storage in clean, dry, closed or covered area
Biological indicators (spore tests) are the gold standard for verifying sterilization efficacy and should be run at a minimum frequency consistent with current CDC guidelines and your state board requirements.
Phase 6 – Between-Patient Turnover
Doff PPE in reverse order: gloves off first (peel away without touching skin), then eyewear, then mask, then gown. Perform hand hygiene immediately after glove removal. Remove and discard all single-use barriers. Disinfect all non-barriered clinical contact surfaces. Restock supplies. Don fresh PPE before the next patient enters.
Phase 7 – Regulated Waste Disposal
Regulated (biohazardous) waste includes blood-saturated materials, sharps, and pathological waste as defined by your state. Dispose of it in properly labeled containers. Sharps containers must be sealed and disposed of through a licensed medical waste handler—never placed in regular trash. Document disposal per office and state requirements.
The DANB CDA Infection Control Examination (ICE) is one of three component exams that make up the CDA credential. According to the DANB CDA Candidate Handbook, the ICE content outline organizes topics into major categories including, but not limited to: occupational safety, patient and dental healthcare worker infection control, and sterilization and disinfection procedures. As you annotate your lab log, tag each recorded activity with the matching category. This annotation habit converts a practical skill exercise into active exam review.
Every lapse in the cycle—a missed surface, a torn glove left in place, instruments processed out of order—creates a path for pathogen transmission. Cross-contamination events are preventable. The CDC's Guidelines for Infection Control in Dental Health-Care Settings and the OSHA Bloodborne Pathogens Standard together form the regulatory and evidence base for everything you practiced today. When you sit for the ICE exam, you are demonstrating that you understand not just what to do but why each step protects patients and clinical team members alike.
A benchmark score of 80% or higher on the 40-question practice set suggests you are approaching readiness for the ICE. A score below 80% is not a failure—it is diagnostic information. Review every missed rationale, identify which content categories those items belong to, and build a targeted study plan for your exam-preparation course. The goal is continuous improvement before test day.
Answer each question, then check it. Nothing is recorded; this is your own practice.
A free tech program — complimentary, as our commitment to get America working. Help us build VoTechWorks. Tell us what works, what doesn’t, and what you want to learn.