The CDC's latest prevalence survey shows healthcare-associated infections in U.S. hospitals fell 27% between 2015 and 2023, with C. difficile infections dropping more than 50%. While the data comes from American hospitals, the infection prevention principles behind this decline carry direct lessons for dental practices across Canada — where IPAC compliance is governed by the Royal College of Dental Surgeons of Ontario (RCDSO) and provincial public health guidelines.
As of August 2026, infection prevention and control (IPAC) remains the regulatory foundation of every dental practice in Ontario. The CDC's newly released Healthcare-Associated Infection (HAI) Prevalence Survey offers a rare, large-scale look at what works — and what still needs attention — in preventing infections across clinical settings. For Canadian dental professionals, the findings are both encouraging and instructive.
What the CDC Data Actually Shows
The CDC's 2023 HAI Prevalence Survey, published in July 2026, tracked infections across U.S. acute care hospitals and compared the results to its 2015 baseline. The headline finding: hospitalized patients were 27% less likely to contract a healthcare-associated infection in 2023 than in 2015. In 2023, approximately 1 in 38 hospitalized patients had at least one HAI, compared to 1 in 31 in 2015.
The most dramatic improvement came from Clostridioides difficile infections, which dropped more than 50% — from a prevalence of 0.54% in 2015 to 0.22% in 2023. Other notable declines included central catheter-associated bloodstream infections (from 0.30% to 0.16%) and catheter-associated urinary tract infections (from 0.20% to 0.09%). Non-ventilator-associated pneumonia also declined, from 0.58% to 0.49%.
Despite this progress, approximately 518,000 HAIs still occurred in U.S. hospitals in 2023. Pneumonia, surgical-site infections, and gastrointestinal infections remained the most common, and 61% of all HAIs were unrelated to medical devices or procedures — a reminder that environmental hygiene and standard precautions matter as much as device-specific protocols.
Why Hospital HAI Data Matters to Dental Practices
Dentistry is not hospital medicine, but the underlying infection prevention principles are identical: hand hygiene, instrument sterilization, surface disinfection, personal protective equipment (PPE), and environmental controls. The CDC's findings confirm that sustained, systematic adherence to these fundamentals produces measurable results over time.
The 61% figure — the proportion of HAIs unrelated to devices or procedures — deserves particular attention. In dental settings, the analogues are operatory surface contamination, waterline biofilm, aerosol management, and hand hygiene compliance. These are not device-associated risks, but they are the infection vectors most relevant to dental care.
For Ontario dental practices regulated by the Royal College of Dental Surgeons of Ontario (RCDSO), the IPAC standards are clear and non-negotiable. The Provincial Infectious Diseases Advisory Committee (PIDAC) Best Practices for Cleaning, Disinfection and Sterilization of Medical Equipment/Devices document, along with the RCDSO's own IPAC guidelines, establish the protocols Canadian dental teams must follow.
Five Lessons Canadian Dental Practices Can Take from the CDC Data
1. Environmental Hygiene Is Not Secondary — It Is Central
The fact that most HAIs were unrelated to medical devices reinforces what IPAC auditors have long emphasized: environmental contamination is a primary transmission route. In a dental operatory, this means high-touch surfaces — the light handle, the chair controls, the bracket table, the computer keyboard — require barrier protection or disinfection between every patient.
Pro Tip: Audit your operatory turnover checklist quarterly. Walk through the room as if you were the IPAC inspector — every surface a gloved hand touches during a procedure needs either a disposable barrier or a wipe-down with a Health Canada DIN-registered surface disinfectant.
2. Antimicrobial Stewardship Applies to Dentistry Too
The decline in C. difficile infections in hospitals has been partly attributed to antimicrobial stewardship programs — reducing unnecessary antibiotic use. Dentistry prescribes approximately 10% of all outpatient antibiotics in Canada, according to Canadian Dental Association (CDA) estimates. Overprescribing prophylactic antibiotics for procedures that do not require them contributes to resistance patterns that affect the broader healthcare system.
The CDA's antibiotic stewardship guidance, updated in alignment with the American Dental Association's clinical practice guidelines, encourages dentists to prescribe only when there is clear clinical indication — not as a substitute for definitive treatment like incision and drainage or extraction.
3. Consistency Beats Intensity
The CDC data spans eight years. The 27% reduction was not the result of a single initiative or a burst of compliance activity — it was the cumulative effect of sustained, protocol-driven behaviour. For dental practices, this means IPAC compliance is a daily discipline, not a pre-audit scramble.
Pro Tip: Build IPAC checks into your morning huddle. Assign one team member per day to verify that the autoclave biological indicator from the previous cycle passed, waterline test strips are within range, and PPE supplies are stocked for the day's schedule.
4. Monitoring and Feedback Systems Work
Hospital HAI reductions correlate with the implementation of surveillance and reporting systems — tracking infections, identifying patterns, and feeding data back to clinical teams. In dental practices, the equivalent is a structured sterilization monitoring program: biological indicators (spore tests) run weekly or more frequently, chemical indicator verification on every load, and documented maintenance logs for autoclaves and waterline treatment systems.
The RCDSO expects dental practices to maintain these records and produce them on request during IPAC inspections. Beyond compliance, the records themselves create accountability — a team that knows its sterilization data is being tracked behaves differently than one operating without oversight.
5. Aerosol Management Remains a Dental-Specific Challenge
Hospital HAI data does not address aerosol-generating procedures (AGPs) in the same way dental practice must. Dental handpieces, ultrasonic scalers, and air-water syringes generate aerosols that can carry oral microorganisms into the operatory environment. Post-pandemic, many Ontario practices invested in high-volume evacuation (HVE) equipment, extraoral suction units, and improved ventilation.
The RCDSO's IPAC guidance incorporates aerosol management as a standard precaution, not an extraordinary measure. Practices should ensure their aerosol mitigation protocols — pre-procedural rinses, HVE during AGPs, appropriate fallow times or air exchanges between patients — remain in place and are followed consistently, not just during heightened public health alerts.
What This Means for IPAC Audits in Ontario
Ontario Public Health units conduct IPAC inspections of dental practices, and the inspection criteria align closely with the principles validated by the CDC data. Inspectors assess hand hygiene compliance, instrument reprocessing procedures, surface disinfection protocols, PPE use, and record-keeping for sterilization monitoring.
The CDC's finding that environmental and non-device-related infections account for the majority of HAIs should prompt dental practice owners to review their surface disinfection protocols and operatory turnover procedures with fresh eyes. A sterilization program that perfectly processes instruments but neglects to disinfect the chair-side computer mouse has a gap that an inspector — or an infection — will find.
Pro Tip: Request a mock IPAC audit from your local public health unit. Many Ontario public health units offer pre-inspection consultations or educational visits. Identifying gaps before the formal inspection is less stressful and far less costly than remediation after a failed audit.
The Broader Context: Infection Prevention as a Practice Differentiator
Patients increasingly research dental practices before booking. Google reviews that mention cleanliness, sterilization visibility (such as displaying sterilization pouches at chairside), and transparent IPAC protocols influence patient decisions. In the Greater Toronto Area, where patients have dozens of practices to choose from in any given neighbourhood — Mississauga, Markham, Vaughan, Scarborough, North York, Brampton, Etobicoke — infection prevention is not just a regulatory requirement. It is a competitive advantage.
Practices that visibly invest in IPAC — barrier-protected operatories, sterilization monitoring logs posted in view, staff in proper PPE — signal to patients that safety is non-negotiable. In an era where patients are more health-conscious than at any point in the last decade, that signal matters.
Looking Ahead: Where Dental IPAC Is Heading
Several trends are shaping the future of infection prevention in Canadian dentistry:
- Digital sterilization tracking: Cloud-based autoclave monitoring systems that log every cycle, flag failures in real time, and generate audit-ready reports are replacing paper logbooks in progressive practices.
- Waterline testing standardization: Health Canada and provincial regulators are moving toward more prescriptive dental unit waterline testing requirements, with some jurisdictions already mandating quarterly testing and documented results.
- Single-use instrument adoption: The economics of reprocessing versus single-use disposable instruments are shifting as sterilization supply costs rise and single-use quality improves. More practices are adopting single-use prophy angles, air-water syringe tips, and saliva ejectors as standard rather than exception.
- AI-assisted compliance monitoring: Emerging technologies can track hand hygiene events, PPE donning compliance, and operatory turnover times — though adoption in dental settings remains early-stage in Canada.
Frequently Asked Questions
Q: Does the CDC healthcare-associated infection data apply to dental offices in Canada?
The CDC data comes from U.S. hospitals, not dental offices, but the infection prevention principles are universal. Hand hygiene, instrument sterilization, surface disinfection, and environmental controls are the same strategies that reduce infection risk in dental settings. Canadian dental practices regulated by the RCDSO and provincial public health authorities follow equivalent or stricter IPAC standards.
Q: How often should a dental practice in Ontario test its autoclave with biological indicators?
The RCDSO and PIDAC guidelines recommend biological indicator (spore) testing at least weekly, and after every autoclave repair or maintenance event. Many IPAC-forward practices run spore tests daily or with every load containing implantable devices. Results must be documented and retained for inspection.
Q: What is the most common infection prevention gap found during Ontario dental IPAC inspections?
According to public health inspection data, the most frequently cited deficiencies involve incomplete sterilization monitoring records, inadequate surface disinfection between patients, and improper PPE use — particularly failure to change gloves between patients or to perform hand hygiene before donning new gloves. These align with the CDC's finding that non-device-related environmental factors drive the majority of healthcare-associated infections.
EBIKO Dental will continue monitoring regulatory developments and infection prevention research relevant to Canadian dental practices. For the latest IPAC supplies, sterilization monitoring products, and surface disinfectants, visit ebiko.ca.