Living with aligners

Do I need to clean my Invisalign case too?

Yes. Store aligners in a protective case and clean that case regularly — dirty cases can harbour bacteria and undo your aligner cleaning. Follow simple rinse/soap routines and use Smilo to log cleaning sessions.

Published
Sep 14, 2026
Author
Smilo Editorial
Clear aligners and aligner accessories

Yes. You should keep your Invisalign or clear-aligner case clean: Invisalign’s instructions say to store removed aligners in a protective case, and orthodontic guidance warns that old or dirty cases can harbour bacteria and undo appliance cleaning efforts. Cleaning the case as part of your regular aligner-care routine helps keep things sanitary. [1, 3]

Quick takeaways

  • Always store removed aligners in a protective case (Invisalign product guidance).
  • Clean the case regularly — dirty cases can harbour bacteria and negate cleaning of the aligners (AAO retainer-care guidance applied to aligner cases).
  • Invisalign sells cleaning accessories and aligner cleaners, but its public accessory pages don’t give a single required cleaning frequency for the case.
  • Use Smilo to log your aligner and case cleaning sessions so you stay consistent with whatever routine you and your clinician choose. [1, 3]

Why clean the case?

Invisalign’s patient materials explicitly say to store removed aligners in a protective case to keep them safe and sanitary. A protective case prevents accidental damage and limits exposure to contaminants while your aligners are out of your mouth. [1]

Professional orthodontic guidance about retainers notes that an old or dirty case can harbour bacteria and undo cleaning efforts — the same hygiene principle applies to the container you use for active aligners. Cleaning the case reduces the chance that bacteria or odors transfer back onto freshly cleaned aligners. [3]

How often should I clean the case?

Manufacturer accessory pages verify that Align/Invisalign supplies cases and cleaning accessories but do not specify a single mandatory case‑cleaning frequency on the cited pages. That leaves a practical choice to you and your clinician: many clinicians and patient guides recommend simple, regular cleaning (for example rinsing after daily use and a periodic soap-and-water wash), but the exact schedule isn’t mandated in the inspected Invisalign instructions. [1, 2]

Practical, evidence‑aligned cleaning steps

Follow straightforward hygiene steps adapted from retainer-care guidance that are directly relevant to aligner cases: rinse or empty the case after daily use, wash the case periodically with mild soap and water, let it air-dry before storing aligners, and replace the case if it becomes cracked or persistently odorous. These are practical routines to keep a storage case sanitary though the cited Invisalign pages don’t mandate exact timing. [1, 3]

How Smilo can help

If you want a simple way to keep a cleaning routine, Smilo can log your aligner cleaning sessions and support configurable regular-clean and deep-clean reminders so you can track when you last cleaned your aligner and case. Using that log makes it easier to stick to whatever cleaning frequency you and your clinician decide is best.

Sources

  1. Cases for Invisalign Aligners - Invisalign
  2. Invisalign Product Instructions / Accessory Instructions - Invisalign Accessory Store (Align Technology)
  3. How To Clean Your Retainer at Home - American Association of Orthodontists (AAO)