Updated in May 2026
If you have had orthodontic treatment, you know that wearing your retainer as instructed is essential. You have invested a lot in your smile, and you’re thrilled with the results, but if you don’t wear your retainer regularly, you risk undoing all the hard work and time you've put in to get to this point. If you are interested in getting treatment, visit our Adult Orthodontics page to learn more!
Since your retainer spends hours in your mouth, it’s just as important to keep it clean as it is to keep your teeth clean. Plaque and bacteria can collect on a retainer in the same way they collect on your teeth, so it’s essential to keep it clean.
How to Clean Your Retainer Based on Its Specific Type
1. Clear Plastic Retainers (Essix or Invisalign Style)
Clear retainers are incredibly popular because they are nearly invisible, but they stain and trap odors very easily.
- The Routine: Every single day, use a dedicated, soft-bristled toothbrush to gently brush the inside and outside of the plastic with lukewarm water and a drop of clear, unscented liquid dish soap or liquid hand soap.
- The Rule: Do not use whitening or standard toothpastes. The abrasives designed to polish your hard enamel will scratch clear plastic, leaving it looking foggy and creating microscopic ridges where bacteria love to multiply.
2. Traditional Wire Retainers (Hawley Retainers)
Traditional retainers feature an acrylic base that sits against the roof of your mouth or behind your lower teeth, with a metal wire running across the front.
- The Routine: Clean these while they are still wet from your mouth using a soft brush. You can use mild soap or a paste made of equal parts baking soda and water.
- Dr. Kim's Baking Soda Trick: Baking soda is an incredible, cost-effective, and natural disinfectant. Mixing a small amount with water to form a gentle paste allows you to scrub away odors and plaque buildup efficiently without exposing your mouth or the appliance to harsh, aggressive industrial chemicals.
3. Bonded / Permanent Retainers
A bonded retainer consists of a solid metal wire glued to the back-facing surface of your lower or upper front teeth. Because you cannot remove it, it requires extra attention during your daily oral hygiene routine.
- The Routine: You must clean around this wire every day using a floss threader, orthodontic floss, or an interdental brush. If you let plaque harden into tartar around a permanent wire, it can quickly lead to localized gum recession or decay.
4. Weekly Deep Soaks for Stubborn Mineral Buildup (White Crust)
Over time, you might notice a chalky white film or a hard crust building up on your retainer that won't budge no matter how much you brush it. This is calcium buildup (tartar), which occurs when minerals in your saliva harden onto the appliance.
- The Routine: Once a week, give your retainer a deep soak to dissolve these mineral deposits. You can use a commercial, effervescent retainer-cleaning tablet, or submerge the appliance in a container filled with equal parts distilled white vinegar and lukewarm water for 15 to 20 minutes. After the soak, give it a gentle scrub with your soft toothbrush, and the white crust will slide right off.
The Big "Don'ts" of Retainer Care
Sometimes, knowing what not to do is just as critical as knowing the correct steps. Avoid these common pitfalls to extend the life of your appliance:
- Never Use Boiling Water: We see this mistake all the time. If your retainer looks gross, you might feel tempted to toss it in boiling water to sterilize it. This will immediately warp the medical-grade plastic, making it completely unwearable and forcing you to buy a costly replacement.
- Avoid Alcohol-Based Mouthwashes: Soaking a clear retainer in standard, alcohol-based mouthwash can dry out the plastic, making it brittle and prone to snapping or cracking over time.
- Don't Leave It Out in the Open: When your retainer isn't in your mouth, it needs to be in its protective case. Leaving it exposed on a nightstand or wrapped in a napkin at a restaurant is the number one way retainers get accidentally thrown into the trash or chewed up by curious household pets.
Keep Your Smile Healthy and Aligned in Glendale, CA
At Brush & Smile, we want to help you protect your investment for life. If your clear retainer has become deeply stained, yellowed, or calcified, or if it simply doesn't fit as comfortably as it used to, don't ignore it. Dr. Lucio H. Kim and our team provide supportive, zero-lecture guidance to get your alignment goals back on track.
Do you have questions about clear aligners, adult orthodontics, or need a replacement retainer fabricated? Give our Glendale dental practice a call today at (818) 242-3739 or schedule a quick appointment online. We look forward to seeing you!