Can You Use Toothpaste on a Retainer?

It seems natural to clean a retainer with the same thing you clean your teeth with. Most orthodontists advise against it, and the reason is simple: toothpaste is mildly abrasive by design.

Why toothpaste is a problem

Toothpaste contains fine particles that polish enamel, which is one of the hardest materials in the body. Retainer plastic is far softer. Those same particles leave tiny scratches on it. The scratches make clear retainers look cloudy, and they give plaque and bacteria rough places to cling to, so the retainer gets dirty faster and smells sooner.

Whitening toothpastes are the most abrasive and cause the most damage.

What to use instead

• Plain water and a soft brush for daily cleaning. This lifts most of the fresh film.
• A drop of mild, clear dish soap if you want something more than water. Rinse well afterwards.
• Retainer cleaner tablets for a deeper clean a few times a week. They dissolve in water and loosen film without any scrubbing.
• An ultrasonic retainer cleaner for a hands-off deep clean that reaches every groove.

What about Hawley retainers?

A Hawley retainer has a hard acrylic plate and a metal wire. The acrylic is tougher than clear retainer plastic, but it still scratches, and the scratches collect stains. The same gentle methods apply.

If you have already been using toothpaste

Do not worry. Switch to a gentler routine and deep clean the retainer to lift what has settled in the scratches. If the retainer is badly clouded, ask your orthodontist whether it should be replaced.

This article is general care information and is not medical advice. Follow the instructions from your dentist, orthodontist or the maker of your appliance.