Best Antibiotic For Tooth Abscess

I have leftover antibiotics against viruses and infections at random and I was wondering what is best for an abscess to a wisdom tooth? My doctor told me to keep them to use if I need them again, and id like to know what would work.

What we typically prescribe Amoxycillin is preferably 1 x 500 mg 3 times daily
You can also try metronidazole 400 mg 1-3 times daily

I suggest you get to your dentist if