>>11706614Don't brush immediately after eating, especially if you ate/drank something acidic like oranges. Give it 30+ minutes or so.
Don't rinse or use mouthwash immediately after brushing. Most toothpastes work best if they have time to sit. Because fluoride. It goes without saying, but also don't eat or drink right after. Again, half an hour or so.
If you want/feel the need to, the best mouthwash is hydrogen peroxide. Yes, the same stuff moms put on your cuts. Most bottles (that I've seen) will have a mouthwash usage suggestion. Common use seems to be a mix of 50% hydrogen peroxide with 50% water, swish 1 minute.
For brushing technique, massage the gums and gumline. Left to right. Avoid excessive pressure.
Flossing is a meme. Do it if you want. Don't expect miracles.
Also
>>11706676.