Yes, you can buy custom orthodontic retainers online without a dentist visit. Companies like SportingSmiles and ClearRetain provide professional-grade retainers by mailing you a DIY impression kit to create a mold of your teeth at home.

: You purchase an at-home impression kit from a provider.

Retainers. Buy retainers online using your home impressions. Professionally made, budget-friendly, and delivered to your doorstep. BracesShop.com Buy retainers online vs. in-office: Find the best option

: Skilled technicians fabricate your custom retainers—usually clear Essix-style—and mail them directly to your door. Key Features & Comparisons Custom Dental Retainers Made for You - BracesShop.com

: You send the completed impressions back to the company's dental laboratory using a prepaid shipping label.

: You follow detailed instructions or video tutorials to create a mold of your upper and lower teeth.