Dental Abscess

Micro-organism

Streptococcus spp, Anaerobes

Duration

5 Days

1st line

Oral Phenoxymethylpenicillin 1g 6 hourly

Or

Oral Amoxicillin 500mg 8 hourly

If spreading infection or pyrexia

ADD oral Metronidazole 400mg 8 hourly 

Penicillin allergy

Oral Metronidazole 400mg 8 hourly

Notes

Ref: SDCEP Drug Prescribing in Dentistry (but higher metronidazole dosing)