Question

always brush your teeth after a every meal is a advice order or an request​

Answer 1

Answer:

To be safe, Mouth Healthy by the American Dental Association suggests that if you feel like you need to brush your teeth after eating or drinking something, wait at least 60 minutes. This gives your saliva a chance to naturally wash away food particles, so your mouth returns to its proper pH level.

Answer 2

Answer:

Always brush your teeth after every meal

This is an advice.