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 $2,999, you get a full Invisalign treatment at Dent-Al Smiles (up to a $6,000 value). Invisalign treatment is only available at Dent-Al Smiles' Shadyside location.

At Dent-Al Smiles, a professional staff of smile sharpeners straighten 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 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. View some Invisalign FAQs here.

Today's deal covers all follow-up visits, as well as a custom retainer. 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.