I am leaving for my thru hike on the AT here in a few weeks and decided a long time ago my best prevention to any dental issues on the trail is to see my dentist and get any needed work done plus my bi yearly cleaning. As for my first aid kit...
Tweezers
Nail clippers
Mini sewing kit
Antibiotic ointment
A few miscellaneous bandaid
Package of steri strips
A few gauzes
Tape
Alcohol wipes
Scissors
Blister kits
Second skin
Aspirin
Pepto
Nasal cease
Tylenol

I thinknow that covers it. Hope that helps.