Infection Control

Board takeaway

• Routine care: Apply standard precautions to every patient, sterilize reusable handpieces between patients, and maintain and monitor dental unit water.
• Sterile irrigation: For oral surgical coolant/irrigation and pulp-therapy irrigation, use sterile water or saline through a sterile single-use delivery system.
• Distinguish: Acceptable routine waterline quality does not make that water sterile.

Build the infection-control system

• Use CDC, OSHA, state/local agencies, and manufacturers to build checklists, standard operating procedures, and quality-assurance processes for patient care, laboratory work, and equipment management.
• Staff education and immunization before health care employment help reduce transmission risk.
• Keep up with current literature. Train the team to address infection-control concerns and explain facility practices to parents.

Standard precautions and exposure response

• Core elements: hand hygiene; personal protective equipment; respiratory hygiene/cough etiquette; sharps safety; safe injections; sterile instruments/devices; environmental cleaning and disinfection.
• The policy describes appointment-time screening for acute illness following heightened concern about transmission during aerosol-generating procedures in the COVID-19 pandemic.
• Maintain an occupational exposure protocol addressing first aid, reporting, blood testing, and medical treatment when indicated.
• Bloodborne pathogens of concern include hepatitis B, hepatitis C, and HIV. The policy does not specify postexposure drugs, doses, or testing schedules.

Process handpieces, equipment, and surfaces

• Internal handpiece contamination can transmit organisms between patients: heat-sterilize all handpieces between patients, including low-speed motors and removable prophylaxis angles.
• Discard single-use components, such as disposable prophylaxis angles.
• Follow the reusable equipment manufacturer's sterilization instructions to achieve effective processing and meet applicable standards.
• Use protective barriers or disinfect clinical contact surfaces between patients and at day's end.
• Follow manufacturer guidance for cleaning and disinfecting equipment, specifically including nitrous oxide equipment and waterlines.

Choose and monitor water for the procedure

• Contaminated treatment water has been associated with nontuberculous Mycobacteria infections after pediatric pulpotomies. Untreated dental unit water also may harbor Legionella and Pseudomonas aeruginosa.
• Develop a water management plan: routine maintenance according to manufacturer instructions plus monitoring of water quality.
• The policy’s bacterial-count target is below 500 colony-forming units/mL.
• Recommended measures include manufacturer-directed waterline disinfection, water-quality/bacterial-count monitoring, point-of-use filters, and removal of plumbing dead ends where stagnation permits biofilm formation.
• For oral surgery coolant/irrigation or pulp-therapy irrigation, the source recommends sterile water or sterile saline delivered through sterile, single-use systems.
• The policy does not prescribe monitoring intervals, specific disinfectants, or a corrective-action algorithm for an elevated count; obtain those details from applicable current guidance and equipment instructions.

Water quality changes with the procedure

Use the procedure to select water and delivery method. Routine drinking-water quality is insufficient for sterile-tissue irrigation; retain the processing, monitoring, and exposure-response procedures above.

Common board traps

Answer aloud

How do you process a low-speed handpiece between children?

Heat-sterilize the reusable motor/handpiece and removable reusable prophylaxis angle between patients.

• Follow manufacturer instructions.
• Discard single-use components.
• Surface wiping alone does not address internal contamination.

A parent asks about infections after pulpotomies. What safeguards do you explain?

Use a maintained, monitored waterline system and sterile pulp-irrigation delivery.

• Waterline target in the policy: below 500 CFU/mL.
• For pulp therapy and oral surgery irrigation/coolant: sterile water or saline through a sterile single-use delivery system.
• A low bacterial count does not make dental-unit water sterile.
• Use manufacturer-directed maintenance and monitoring; this policy gives no universal testing interval.

Does a healthy child's visit still require standard precautions?

Yes. Apply standard precautions to every patient.

• Hand hygiene, PPE, respiratory hygiene, sharps safety, and safe injections.
• Sterile instruments/devices and environmental cleaning/disinfection.
• Barrier-protect or disinfect clinical contact surfaces between patients and at day's end.

A staff member sustains a needlestick. What is your framework?

Activate the occupational exposure protocol promptly.

• First aid, reporting, assessment/blood testing, and medical treatment when indicated.
• Arrange protocol-directed medical evaluation and document the event.
• This AAPD policy supplies no pathogen-specific postexposure drug regimen or testing schedule.