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 this Groupon: for $2,700, you get a full Invisalign treatment at Dental Associates of Rhode Island in Johnston (up to a $5,995 value).

Dr. Rupesh R. Udeshi, DDS, and his experienced staff arrange teeth into orderly rows with Invisalign treatments. 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. 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 9–24 months for teeth's tectonic plates to slowly shift into alignment. Aligners should only be removed when eating, brushing, flossing, or modeling a finely clenched jaw. The total cost of an Invisalign treatment varies for each customer (it can run anywhere from $3,500–$8,000). View some Invisalign FAQs here.