What order should you floss, brush and use mouthwash?

You want to know the right floss brush mouthwash order, and the annoying answer is that it depends on the mouthwash.

A simple rule helps most people: if you use fluoride toothpaste, end with brushing and just spit, do not rinse. If your mouthwash contains fluoride, the timing gets less clear and people give different advice.

For most people, floss first and brush last makes the most sense

If you want one routine that fits most nights, use floss first and brushing last. Floss clears plaque and food from between teeth, and brushing then spreads toothpaste across cleaner surfaces.

The main reason people argue against mouthwash after brushing is fluoride. If you brush with fluoride toothpaste and then rinse hard with mouthwash or water, you leave less fluoride sitting on the teeth.

That is why many dentists tell people to spit after brushing and leave it there. The exact perfect sequence is debated, but protecting the fluoride from toothpaste is a solid reason to end with brushing.

Do not use mouthwash after brushing. That will rinse the fluoride off your teeth. You should spit, not rinse after brushing. And in the evening, floss first, then brush. Mouthwash can be used at other times of day to just freshen the mouth.

— r/LifeProTips

If you use fluoride mouthwash, there are two reasonable ways to fit it in

A fluoride mouthwash changes the logic. If you use it right after brushing, it may wash away some toothpaste fluoride while also adding fluoride from the rinse, so the net effect is not as simple as people make it sound.

One option is floss, then mouthwash, then brush. That keeps the toothpaste as the last thing on your teeth. Another option is to brush at the usual time and use fluoride mouthwash later in the day, away from brushing.

If your rinse is mainly for fresh breath and does not contain fluoride, the order matters less. In that case, I would still lean toward not using it immediately after brushing.

My dentist said: floss -> brush -> mouthwash Then he said "honestly, actually doing all 3 is the important part. Which order is best can debated, but as long as you do all 3, it really does not matter.

— r/LifeProTips

Brushing first is not wrong, but it has weaker logic

Some people brush first because it makes the mouth feel cleaner before flossing. Others were taught that brushing loosens debris so floss can pull it out after.

That routine is not useless. It just misses the strongest practical point in this whole debate, which is keeping fluoride toothpaste on the teeth at the end instead of rinsing it away.

If brushing first is the only order you will actually stick to, that matters more than chasing a perfect sequence. A routine you do every day beats a better routine you skip.

I was told that, too. I was told brushing gets everything loose so you can remove it in floss and then mouthwash to finish it off. I'm so confused.

— r/LifeProTips

Choose the order that fits your mouthwash and your real life

There is no single order that wins for every person. The best choice depends on whether your mouthwash has fluoride, whether you can avoid rinsing after brushing, and whether convenience is the thing that keeps you consistent.

• Choose floss → brush if you use fluoride toothpaste and want the simplest default.
• Choose floss → mouthwash → brush if your mouthwash has fluoride or you want the toothpaste to be the final layer.
• Choose brush → floss only if that is the order you will reliably do, because consistency matters.
• Choose mouthwash at another time of day if you want fresh breath or extra fluoride without interfering with toothpaste.

I have a sensory disorder, and brushing my teeth can sometimes send me over the edge. On those days, I floss, use mouthwash, and fingerbrush.

— r/Parenting

What each option does not do matters too

Flossing does not remove tartar that has already hardened onto teeth. Mouthwash does not replace brushing, and brushing does not clean well between tight teeth.

A fluoride mouthwash can be useful, but it is not a magic fix for a weak brushing or flossing habit. If your gums bleed for more than a short stretch after improving cleaning, or you have heavy buildup, you need a dentist to check it.

CariSpray is a nano-hydroxyapatite oral spray that stays on the enamel after the mouth goes quiet. It is alcohol-free and fluoride-free, requires no rinsing, and can be used away from a bathroom, with no sink needed for a quick clean-mouth step whenever a full routine is not practical.

All of that on the inside of your teeth is heavy tartar buildup. When you were flossing a piece of tartar came off. You and your dentist need to work together to go over your oral hygiene routine and find where you can improve, because that amount of tartar doesn't accumulate overnight. Are you brushing with an electric toothbrush twice daily? And cleaning the inside surfaces of your teeth?

— r/askdentists

The best order is the one that protects fluoride and actually happens daily

If you want the shortest honest answer, use floss before brushing and avoid rinsing after brushing with fluoride toothpaste. Put mouthwash before brushing or at another time of day if you do not want to wash that toothpaste off.

The downside to this advice is convenience. Some people strongly prefer that fresh mouthwash feeling as the last step, and some people with sensory issues need a simpler or more flexible routine. That is a fair trade if it keeps the habit going.

Common questions

Should I floss before or after brushing?

Before is the better default for most people. It clears the spaces between teeth first and lets brushing be the last step, which matters if you use fluoride toothpaste and do not rinse after.

Should mouthwash go before or after brushing?

If you use fluoride toothpaste, many people prefer not to use mouthwash right after brushing because it can wash toothpaste residue away. Mouthwash often fits better before brushing or at another time of day.

What if my mouthwash has fluoride?

That makes the answer less absolute. You can use it before brushing so toothpaste stays on last, or use it at a separate time of day to get both benefits without one step diluting the other.

Does the order matter more than doing all three?

No. Order matters some, especially around fluoride, but a consistent routine matters more. If changing the order makes you skip steps, use the version you will actually keep doing.

Can mouthwash replace flossing?

No. Mouthwash can move liquid around the mouth, but it does not mechanically clean between teeth the way floss does. If food and plaque collect there, floss or another interdental cleaner still does the real work.

Start with the easiest strong routine: floss, then brush with fluoride toothpaste, then spit and do not rinse. If you want to keep a fluoride mouthwash, move it to another time of day first instead of forcing it into the same session.

If your current order is the only one you can do consistently, keep the habit and make one small upgrade rather than rebuilding the whole routine. If you have persistent bleeding, pain, or heavy buildup, book a dentist visit and bring your routine with you so they can help you adjust it.