Clear Aligners & Cold Drinks: What You Need to Know

Clear aligners are thin, custom-fitted trays made from durable plastic. They work by gently shifting teeth into better alignment over time. Patients typically receive a series of trays, each worn for about one to two weeks. For the best results, aligners should be worn 20 to 22 hours per day.

Cold drinks are refreshing, especially in warm weather. However, sipping them while wearing aligners can cause unexpected problems. Even water that is extremely cold can make the plastic material contract slightly. Sugary or acidic drinks can seep between the aligner and teeth, leading to potential damage.

Here are the main issues that cold drinks can create for aligner wearers:

• Staining – Drinks like iced tea, coffee, or colored sports beverages can leave marks on aligners.
  
• Warping – Rapid temperature changes may slightly alter the fit of the trays.
  
• Bacterial growth – Sugary liquids trapped under aligners create a warm, moist environment where bacteria thrive.
  
• Tooth decay risk – Acidic beverages can soften enamel when trapped against teeth.

To keep your aligners safe and your treatment on track:

• Remove aligners before drinking anything other than cool or room-temperature water.
  
• Rinse your mouth before putting aligners back in.
  
• Use a straw for cold or staining drinks to limit contact with teeth.
  
• Avoid holding cold drinks in your mouth for long periods.

If you want a refreshing drink without risking your aligners:

• Stick with plain, room-temperature water while wearing trays.
  
• Try herbal teas served lukewarm.
  
• Enjoy flavored water without added sugar, but only after removing aligners.

If you drink something other than water, it is important to:

• Rinse aligners with lukewarm water before reinserting them.
  
• Clean trays daily with a soft toothbrush and clear, unscented soap.
• Avoid hot water, which can warp the plastic.