Rinse your aligners every time you take them out. Clean them daily with a soft toothbrush and clear, unscented soap. Soak them regularly to stay ahead of buildup. Store them in their case when they’re not in your mouth. Skip toothpaste, hot water, and scented soaps – those all damage the plastic.
Key Takeaways
Clean aligners every day and they stay clear. The common problems – cloudiness, odor, buildup – almost always come from skipping the routine.
Your aligners are in your mouth for 20 to 22 hours a day. What builds up on them is pressed directly against your teeth and gums. Keeping them clean isn’t just about appearance. It’s about keeping your treatment on track.
Your Daily Cleaning Routine
This doesn’t need to take long. Here’s the routine:
- Take your aligners out.
- Rinse them immediately under lukewarm water. Don’t let saliva dry on the plastic.
- Brush gently with a soft manual toothbrush and a small amount of clear, unscented liquid soap. Work the inside and outside of each tray.
- Rinse thoroughly until no soap residue remains.
- Brush and floss your own teeth before putting the aligners back in.
Do this twice a day – morning and night. The morning rinse removes bacteria that accumulated overnight. The night clean removes everything from the day.
What to Avoid – and Why It Matters
Some common cleaning habits will ruin your aligners. These aren’t myths:
- Toothpaste: Too abrasive. It scratches the plastic, which makes the trays look cloudy and traps bacteria in the grooves.
- Hot or boiling water: Warps the shape. Once the plastic deforms, the aligner won’t fit properly – and fit is what moves your teeth.
- Scented or colored soaps: Stain the plastic and leave a residue that tastes awful.
- Mouthwash: Most formulas contain alcohol, dye, or both. Both are hard on clear plastic.
- Leaving aligners out in the open: Bacteria collect on them, and without the case they’re at risk of being dropped or lost.
Stick to clear, unscented, mild soap. That’s really all you need for daily cleaning.
When You Need a Deeper Clean
Daily brushing handles most of it. But buildup, staining, and odor can develop if you’re not also soaking your aligners regularly. Once a day is ideal.
Your options:
- Invisalign® Cleaning Crystals: The brand option. Dissolve a packet in lukewarm water and soak your aligners for 15 minutes. Rinse well after.
- Diluted hydrogen peroxide: Equal parts hydrogen peroxide and lukewarm water. Soak for 20 to 30 minutes. Rinse thoroughly.
- Diluted white vinegar: Equal parts white vinegar and water. Soak for 15 minutes. Rinse very well – the smell lingers if you don’t.
One important rule for all three: use lukewarm water only. Heat will warp the trays, and warped trays don’t move teeth.
Storage and Handling
The case is non-negotiable. If you’re at a restaurant and removing your aligners to eat, the case comes with you. Aligners wrapped in napkins get thrown away. Aligners in pockets get sat on.
Handle them carefully. The clear plastic is strong enough for daily use but not for being dropped on tile. Take them out over a towel or while leaning over a sink if you’re prone to fumbling.
If you have questions about your aligner care at any point, bring them up at your next check-in. That’s exactly what those appointments are for.

