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 $2,899, you get a complete Invisalign treatment, including an exam, x-rays, impressions, clear trays, and office visits, from Steven Donia, DDS, in Encino (up to a $6,350 value).

Known for his high-octane toothcraft on ABC’s Extreme Makeover, Dr. Steven Donia uses his artistic eye and extensive knowledge of cosmetic dentistry to polish the grins of LA celebrities. Invisalign straightens crooked chompers with a combination of highly advanced 3-D computer graphics and the spells of old-fashioned orthodontia. The process eschews cumbersome braces for clear, removable aligners that are virtually invisible to the unclothed eye. An initial 30-minute exam, which includes x-rays, photos, and impressions of the patient’s 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.

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. Though this Groupon covers the price of necessary checkup visits to Dr. Donia every 6–8 weeks, it does not include the cost of Vivera retainers ($500), which are worn after patients complete the Invisalign treatment.