Clear Aligner Turning Yellow? Here’s What You Can Do

September 9, 2025

Woman putting on clear aligner

Clear aligners have revolutionized orthodontic treatment, offering a discreet, comfortable way to straighten your teeth. Brands like SureSmile Aligners are designed to be virtually invisible, making them a popular alternative to traditional braces. However, even the clearest trays can develop a yellow tint over time if they aren’t properly cared for. Understanding the causes of discoloration and following best practices can help keep your aligners looking clear and maintain the aesthetics of your smile throughout treatment.

Common Causes of Yellowing

Several factors can contribute to discoloration of clear aligners:

  • Dietary habits – Foods and beverages such as coffee, tea, red wine, and curry can stain your aligners just as they stain your teeth. Even seemingly harmless drinks like soda or fruit juices can contribute to yellowing over time.
  • Smoking or vaping – Tobacco products can quickly stain clear plastic, leaving unsightly discoloration.
  • Poor cleaning habits – Failing to clean your aligners regularly or using abrasive cleaning methods can leave residue that leads to yellowing. Soap buildup, toothpaste abrasives, or improper cleaning solutions can all contribute.
  • Natural wear and tear – Over time, plastic trays can lose their original clarity due to minor scratches and the absorption of natural oils from saliva.

Best Practices to Keep Your Aligners Clear

Keeping your aligners clean and clear is easier than it may seem. Here are some proven strategies to prevent yellowing:

  • Rinse after every meal – Before putting your aligners back in, rinse them with lukewarm water to remove leftover food particles and prevent staining. Avoid hot water, which can warp the plastic.
  • Brush gently – Use a soft-bristled toothbrush and clear, mild soap to gently clean your aligners at least twice daily. Avoid regular toothpaste, as many contain abrasives that can scratch the trays.
  • Soak regularly – Using a specialized aligner or retainer cleaning solution a few times a week can help remove buildup and maintain clarity. Follow the manufacturer’s instructions for the best results.
  • Avoid staining foods and drinks – While your aligners are in, try to limit or avoid items that are known to cause discoloration. If you do indulge, remove your aligners and brush your teeth before reinserting them.
  • Store them properly – Keep your aligners in a clean case when not in use. Leaving them exposed can allow bacteria and residue to accumulate, leading to yellowing and odor.

When to Contact Your Orthodontist

If your aligners continue to yellow despite proper care, contact your orthodontist. Persistent discoloration could indicate that your trays are damaged or that a replacement is needed. Maintaining clear aligners is not just about aesthetics—it also ensures that your treatment stays on track and functions effectively.

Proper care of your aligners preserves their transparency, maintains oral hygiene, and keeps your smile looking its best throughout treatment. With consistent habits and attention, yellowing can be avoided, allowing you to enjoy the discreet benefits of your clear aligners.

About the Practice

Premier Dental of East Orlando offers advanced orthodontic care, including SureSmile Aligners and other clear aligner options. Dr. Scarpitti and our dynamic team provide personalized treatment plans and expert guidance to help patients achieve straight, healthy smiles while maintaining comfort and discretion.

Call us at (407) 658-1111 or request an appointment online.