[Durgical](https://durgical.com/en/) › [DurgiPedia](https://durgical.com/en/durgipedia/) › [Dentistry](https://durgical.com/en/dentistry/) › [Drugs in dentistry](https://durgical.com/en/dentistry/areas/drugs/) › Antibiotic prophylaxis before dental procedures

# Antibiotic prophylaxis before dental procedures

- Drugs

A single preventive antibiotic before some dental procedures is now limited to people at the highest risk of endocarditis. Most others do not need it.

Updated Nov 12, 2026

## Key points

- Prophylaxis only for highest-risk cardiac patients.
- Single dose before procedures that manipulate gingiva or the root tip.
- Not routinely for prosthetic joints.

## What it is

Antibiotic prophylaxis means a single antibiotic given shortly before a procedure to reduce bacteraemia. For dentistry, current guidelines (American Heart Association and European Society of Cardiology) recommend it only for patients at highest risk of infective endocarditis undergoing procedures that manipulate the gingiva or the periapical region or perforate the oral mucosa. Amoxicillin is the usual choice; alternatives in penicillin allergy include cefalexin (if there was no anaphylaxis, angioedema or urticaria), a macrolide or doxycycline. Clindamycin is no longer recommended by the American Heart Association because of C. difficile risk. Routine prophylaxis is not recommended for people with prosthetic joints, according to dental and orthopaedic societies.

## What to know

- Who: prosthetic valves or valve repair with prosthetic material, previous endocarditis, specific congenital heart disease, and in some guidelines heart transplant with valve disease.
- Which procedures: extraction, scaling, periodontal surgery, implant placement, biopsy, root canal beyond the apex.
- Not needed: routine anaesthetic injections through healthy tissue, radiographs, placing orthodontic appliances, shedding of baby teeth, lip or mucosal trauma.
- Given as a single dose before the procedure; not as a multi-day course.
- Prosthetic joints: routine prophylaxis not recommended.

## Risks and precautions

- Giving multi-day antibiotic courses «to be safe» adds risk without benefit.
- Patients who had prophylaxis can still develop endocarditis; fever after dental work in a high-risk patient needs blood cultures.
- Severely immunocompromised patients may need individual decisions with their specialist.

## Next step / Initial management

- Identify highest-risk cardiac patients and give them a written note for the dentist.
- Uncertain cases (complex congenital disease, transplant, severe immunosuppression): refer to or consult the treating cardiologist or specialist.
- Emphasise twice-yearly dental check-ups and daily oral hygiene for all patients with heart disease.

## Test yourself

Think of the answer, then tap the question to see it.

## Which dental procedures require prophylaxis in high-risk cardiac patients?

Those that manipulate the gingiva or the periapical region or perforate the oral mucosa, such as extractions and scaling.

## Is antibiotic prophylaxis routinely recommended before dental treatment in people with prosthetic joints?

No, according to current dental and orthopaedic society guidance.

## Why did the American Heart Association stop recommending clindamycin for dental prophylaxis?

Because of its risk of Clostridioides difficile infection.

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## Connections

## Related 2

- [Dental procedures and infective endocarditis](https://durgical.com/en/dentistry/dental-procedures-and-infective-endocarditis/)
- [Antibiotics in dentistry: when, and when not](https://durgical.com/en/dentistry/antibiotics-in-dentistry-when-and-when-not/)

## Related conditions 1

- [Infective endocarditis](https://durgical.com/en/conditions/infective-endocarditis/)

## In Pharmacology 5

- [Amoxicillin](https://durgical.com/en/pharmacology/amoxicillin/)
- [Cefalexin](https://durgical.com/en/pharmacology/cefalexin/)
- [Azithromycin](https://durgical.com/en/pharmacology/azithromycin/)
- [Doxycycline](https://durgical.com/en/pharmacology/doxycycline/)
- [Clindamycin](https://durgical.com/en/pharmacology/clindamycin/)

[← All of dentistry](https://durgical.com/en/dentistry/)

Educational content; it does not replace assessment by a dentist or doctor and is not a clinical instruction. For facial or neck swelling with difficulty swallowing or breathing, a knocked-out tooth or bleeding that will not stop, go to an emergency department at once.

Sources: [Antibiotic Prophylaxis in Dental and Oral Surgery Practice](https://www.ncbi.nlm.nih.gov/books/NBK587360/) (StatPearls Publishing (NCBI Bookshelf), 2026); [Infective Endocarditis](https://www.ncbi.nlm.nih.gov/books/NBK557641/) (StatPearls Publishing (NCBI Bookshelf), 2026).

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Representative model, for educational purposes only.

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