Antibiotic and Antimicrobial Prescribing Guidelines for Dental Infections

Introduction to Antibiotic Prescribing

Surgical intervention is the primary treatment for dental infections, and antibiotics should not be prescribed as a substitute for proper surgical management, as recommended by the Canadian Collaboration on Clinical Practice Guidelines in Dentistry 1, 2, 3
The American Dental Association recommends that antibiotics be prescribed only when systemic involvement is present, such as fever, malaise, lymphadenopathy, or cellulitis 1, 2, 3

Antibiotics are indicated for dental infections with systemic involvement, such as fever, malaise, lymphadenopathy, or cellulitis, with a strength of evidence rated as high 1, 2, 3
Antibiotics are also indicated for medically compromised patients, such as those with immunocompromised conditions, diabetes, or cardiac conditions requiring prophylaxis, with a strength of evidence rated as moderate 1, 2, 3
Diffuse swelling that cannot be adequately drained is another indication for antibiotic use, with a strength of evidence rated as low 1, 2, 3
Progressive infection extending into cervicofacial tissues or facial spaces requires antibiotic treatment, with a strength of evidence rated as high 1, 2, 3
Failure to respond to surgical treatment alone is an indication for antibiotic use, with a strength of evidence rated as moderate 1, 2

Amoxicillin is the first-line choice for 5 days following incision and drainage for acute dentoalveolar abscesses, as recommended by the World Health Organization and Médecins Sans Frontières 1, 2
Phenoxymethylpenicillin (Penicillin V) is recommended for medically compromised patients or those with systemic involvement, with a strength of evidence rated as moderate 1, 2

Sub-antimicrobial dose doxycycline (20 mg twice daily for 3-9 months) may be used as an adjunct to scaling and root planning for chronic periodontitis, with a strength of evidence rated as high 1, 2, 4
This is the only indication where antimicrobials have demonstrated benefit in chronic periodontal disease, with a strength of evidence rated as moderate 1, 2

All dental procedures must follow strict infection control protocols to prevent cross-contamination and healthcare-associated infections, as recommended by the Centers for Disease Control and Prevention 6, 7, 8
Gloves must be worn for all procedures with potential blood or saliva contact, and changed between patients, with a strength of evidence rated as high 6, 7, 8
Hand washing before and after each patient is essential, with a strength of evidence rated as high 6, 7, 8
Surgical masks and protective eyewear should be used when splashing or spattering is likely, with a strength of evidence rated as moderate 6, 7, 8
Protective clothing should be changed daily or when visibly soiled, with a strength of evidence rated as low 6, 7, 8

NSAIDs are recommended as first-line pharmacotherapy for TMD pain, with a strength of evidence rated as high 5
Neuromodulatory medications (amitriptyline, gabapentin) may be considered for chronic TMD pain, with a strength of evidence rated as moderate 5
Paracetamol (acetaminophen) is listed as an option but NSAIDs are preferred, with a strength of evidence rated as low 5

Never prescribe antibiotics without surgical intervention, as this is ineffective and contributes to antimicrobial resistance, with a strength of evidence rated as high 1, 2, 3
Never prescribe antibiotics for irreversible pulpitis, as definitive dental treatment is required, with a strength of evidence rated as moderate 1, 2