Aligners and Mouthwash

How aligners change the rinsing question

Fixed braces trap food on the outside of brackets. Aligners work differently: they sit over the teeth, and whatever is in your mouth when they go in is held against the surface for hours. That makes cleanliness before you put them back more important than it first seems, and it changes how you think about rinsing.

So the real question is less about whether mouthwash is allowed and more about timing and residue. A rinse used with the trays out and followed by brushing leaves little behind. A rinse used carelessly, or while wearing the trays, can leave color or flavor trapped against the plastic.

Out of the mouth first

The simple rule is to remove the aligners before you rinse. Swishing with trays in place means the liquid mostly bathes the plastic rather than the teeth, and the plastic can pick up whatever is in the liquid. Store the trays in their case while you rinse, not wrapped in a tissue where they are easy to lose.

Many providers advise that, apart from plain water, you avoid drinking anything with the trays in. Rinses fall under the same caution, so treat the trays-out habit as the default unless your provider tells you otherwise.

Caring for the trays themselves

Mouthwash is not a tray cleaner. Aligners are usually cleaned with a soft brush and cool or lukewarm water, and some providers suggest a cleaning product made for aligners. Hot water can warp plastic, and abrasive toothpaste can scratch it, which makes the trays look cloudy and gives film more places to cling.

Soaking trays in a mouthwash is a common idea, but whether it is acceptable depends on the rinse and the material, so check with your provider before trying it.

• Rinse trays when you take them out
• Brush gently with a soft brush
• Avoid hot water
• Keep them in the case when not worn

Which rinses cause trouble

Rinses that contain dyes, strong flavoring or heavy essential-oil blends are the ones most likely to leave something behind on clear plastic. A rinse that is colorless and mild is simpler to live with. If your trays begin to smell, look dull or take on a tint, the rinse is one possible cause, but food, drinks and incomplete cleaning are more common ones.

Because tray materials differ between systems, it is better to ask than to assume. Your orthodontist or dentist can tell you whether a particular type of rinse suits the product you are wearing.

Do you need a rinse at all?

Many aligner wearers do well without one. Dental organizations commonly advise brushing twice a day with fluoride toothpaste and cleaning between the teeth once a day, and aligners make it easy to brush properly because nothing is in the way. If you want a rinse for freshness or on your dentist's advice, treat it as an extra after those basics.

Brush before putting the aligners back in, so you are not sealing food and film against the teeth. If you eat out, carry a small brush and a case so the habit survives a lunch break.

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