Like glaciers and tectonic plates, teeth are slowly yet surely on the move as they attempt to turn their host’s mouth into frozen tundra and then rip it apart like a bite-size Pangaea. Defeat devious teeth with today’s Groupon: for $49, you get an initial examination, x-rays, and impressions, plus $2,000 toward the full Invisalign teeth-straightening treatment or braces, at Coombs Orthodontics (a $300 value). Groupon users who pay the entire Invisalign cost up front will also receive an extra 10% off the complete treatment.

Invisalign straightens crooked chompers with a combination of highly advanced, 3-D computer graphics and the spells of old-fashioned orthodontia. The Invisalign process eschews cumbersome braces for clear, removable aligners that are virtually invisible to the unclothed eye. An initial 30-minute exam, including x-rays, photos, and impressions of your mouth terrain, paves the way for a flurry of calibrated teeth sheaths that are designed to slowly shift walnut crackers into perfect alignment. The total cost of an Invisalign treatment varies for each customer, and normal-bite cases cost $8,000 on average; this Groupon gets you $2,000 toward that final cost. View some Invisalign FAQs here.

Depending on the client’s teeth, as few as 12 or as many as 48 separate aligners will need to be worn during a period of 6–15 months before the straightening effect finally self-actuates in a sudden burst of pink smoke and slobber. Aligners are only removed when eating, brushing, flossing, or modeling a finely clenched jaw. Customers who are not eligible for Invisalign can use this Groupon for $2,000 toward standard braces. Standard braces average $7,000 without this Groupon.