As antimicrobial resistance becomes a growing public health crisis, dental professionals across Canada face increasing pressure to rethink how and when they prescribe antibiotics. As of April 2026, new stewardship frameworks and research findings are reshaping prescribing practices — and every dental practice in Ontario and the GTA should take notice.
Dentists account for roughly 10% of all antibiotic prescriptions worldwide. That statistic might surprise you, but the implications are hard to ignore. Research published in early 2026 in Frontiers in Dental Medicine highlights that up to 80–90% of antibiotic prescriptions written by dental professionals may be unnecessary or inappropriate. For your practice, that represents a significant opportunity to improve patient safety and contribute to the broader fight against antimicrobial resistance (AMR).
What Is Antimicrobial Resistance and Why Should Dentists Care?
Antimicrobial resistance occurs when bacteria, viruses, and other microorganisms evolve to withstand the drugs designed to kill them. In dentistry, the overuse of antibiotics for conditions that don't require them — such as irreversible pulpitis, localized dental abscesses that can be drained, or routine extractions in healthy patients — accelerates this process. The result: common oral pathogens like Streptococcus species, Enterococcus faecalis, and Porphyromonas gingivalis are becoming increasingly resistant to conventional treatments.
For dental professionals in Toronto and the Greater Toronto Area (GTA), this isn't an abstract concern. The Royal College of Dental Surgeons of Ontario (RCDSO) has reinforced its expectation that practitioners follow evidence-based prescribing guidelines, and Health Canada continues to flag AMR as one of the country's top public health priorities.
The IADR Symposia: What the Latest Research Tells Us
At the 104th General Session of the International Association for Dental Research (IADR) held in March 2026, two dedicated symposia examined the role of antibiotics and antiseptics in driving antimicrobial resistance. The key takeaways were clear:
- Inappropriate prescribing remains widespread. Many dentists still prescribe antibiotics for pain management or as a substitute for definitive treatment such as incision and drainage or root canal therapy.
- Antiseptic overuse matters too. The symposia addressed how routine reliance on chlorhexidine and other antiseptic rinses, when not clinically indicated, can contribute to resistance patterns in the oral microbiome.
- Audit and feedback works. High-certainty evidence shows that personalized feedback combined with behaviour change messaging significantly reduces inappropriate prescribing. Simply distributing guidelines, however, does not.
Current Prescribing Guidelines: What Has Changed
As of April 2026, the consensus across Canadian and international guidelines is straightforward:
- Amoxicillin remains the first-line agent for most odontogenic infections requiring antibiotics. Typical dosing for adults is 500 mg three times daily for 5–7 days.
- Clindamycin is no longer the default penicillin-allergy alternative. Due to its association with Clostridioides difficile infection and rising resistance rates, current guidelines recommend azithromycin or metronidazole as preferred alternatives.
- Prophylactic antibiotics are narrowly indicated. Pre-procedural antibiotics remain appropriate only for patients with specific cardiac conditions (prosthetic valves, previous infective endocarditis, certain congenital heart defects) and for certain immunocompromised patients.
- Antibiotics are not analgesics. Prescribing antibiotics for dental pain without evidence of spreading infection is inappropriate. NSAIDs and acetaminophen should be the first-line approach for pain management.
Pro Tip: Conduct a quarterly audit of your practice's antibiotic prescribing patterns. Compare your prescriptions against current guidelines and look for trends — are certain procedures consistently triggering unnecessary prescriptions? Even a 15-minute team discussion can shift habits over time.
Building an Antibiotic Stewardship Program in Your Practice
Implementing stewardship doesn't require a massive overhaul. Here's a practical framework for practices in Ontario and across Canada:
1. Adopt a Decision-Support Checklist
Before writing any antibiotic prescription, run through three questions: Is there a confirmed bacterial infection? Is there evidence of systemic involvement (fever, lymphadenopathy, facial swelling)? Has definitive local treatment been provided or scheduled? If the answer to all three is no, the prescription is likely unnecessary.
2. Track and Review Prescribing Data
Most practice management software can generate reports on prescriptions written per provider per month. Set a baseline and track it quarterly. The Association for Dental Safety (ADS) recommends that practices aim for a measurable reduction year-over-year.
3. Educate Your Team
Front-desk staff and dental assistants often field patient calls requesting antibiotics. Equip your team with scripts that redirect patients toward appropriate care: "Dr. [Name] will assess your symptoms and determine the best treatment plan at your appointment."
4. Communicate with Patients
Many patients expect an antibiotic prescription when they present with dental pain. Take 60 seconds to explain why definitive treatment (not antibiotics) is the appropriate response. Patients who understand the reasoning are more compliant and more satisfied with their care.
Pro Tip: Print a one-page patient handout explaining why antibiotics aren't always the answer for dental infections. Place it in your operatory. The Canadian Dental Association (CDA) offers patient education resources you can adapt.
Regulatory Expectations in Ontario
The RCDSO's practice advisory on prescribing makes clear that dentists must prescribe medications based on clinical evidence and within their scope of practice. While Ontario does not yet mandate formal antibiotic stewardship programs for dental offices (as some hospital systems require), the direction of travel is unmistakable. Health Canada's Pan-Canadian Action Plan on Antimicrobial Resistance, updated in 2024, specifically calls for engagement from all prescribers — including dental professionals.
Practices in the GTA, including Mississauga, Brampton, Markham, Vaughan, Scarborough, and North York, should also be aware that public health units are increasingly tracking prescribing patterns at the community level. Demonstrating stewardship isn't just good medicine — it's risk management.
What About Antiseptics?
The 2026 IADR findings also challenge the routine use of pre-procedural antiseptic rinses. While chlorhexidine rinses before scaling or surgical procedures have long been standard in many practices, the evidence supporting their use in reducing bacteremia or post-operative infection is weaker than many practitioners assume. The recommendation: use antiseptics when there is a clear clinical indication, not as a blanket protocol.
Pro Tip: Review your office's antiseptic rinse protocol with your hygiene team. If you're using chlorhexidine rinses before every scaling appointment, evaluate whether the evidence supports that practice for your specific patient population.
Frequently Asked Questions
Q: When should a dentist prescribe antibiotics for a dental infection?
Antibiotics are indicated when there is evidence of a spreading bacterial infection — signs include fever, facial swelling, lymphadenopathy, or trismus. For localized abscesses, incision and drainage or definitive treatment (pulpectomy, extraction) should be the first-line approach, not antibiotics alone.
Q: Why is clindamycin no longer recommended as a first-choice alternative for penicillin-allergic dental patients?
Current evidence links clindamycin use to a higher risk of Clostridioides difficile infection, a potentially serious gastrointestinal condition. Updated guidelines from 2025–2026 recommend azithromycin or metronidazole as safer alternatives for patients with true penicillin allergies.
Q: How can a dental practice in Ontario start an antibiotic stewardship program?
Start with a prescribing audit: pull 3 months of prescription data and compare it against current guidelines. Identify patterns of overprescribing, create a simple decision checklist for clinical staff, and schedule quarterly reviews. The RCDSO and CDA both offer practice resources to support this process.
EBIKO Dental will continue monitoring developments in antimicrobial stewardship and infection prevention as they affect dental practices across Canada. For infection prevention and control (IPAC) supplies, visit ebiko.ca.