You may have seen those ads online for mail-in aligners that work by meeting just once with an underqualified tech for a mouth scan and getting clear aligners mailed directly to your home to straighten your teeth. These programs promise straight, even teeth in a fraction of the time of braces or Invisalign, and at a greatly reduced cost. But do you ever wonder how they get their prices so low? Here are five sneaky ways they cut corners, and why you should avoid Invisalign alternatives in Concord and trust the real deal from your dentist instead!