Straightening a crooked smile is a great way to improve confidence, garner self-esteem, and bite into other people's sandwiches without leaving identifying tooth prints. Align teeth into stealth formation with today's Groupon: for $59, you get a new-patient exam (a $73 value), a cleaning (a $91 value), and x-rays (a $193 value) at Great Day Dental (a $357 total value).

Dr. William Lee and his team of pearly-whites polishers check for hidden mouth ailments with exams and x-rays before ousting tooth grime to make grins more radiant and snarls more frightful. During comprehensive examinations, patients will be screened for oral cancer and potential smile-disrupting issues. Great Day Dental's teeth titans design a treatment roadmap based on the exam, steering patients toward the best path to keep mouths shipshape. Dental devotees will evict tartar and other pesky substances from every crevice, readying mouths to gape unashamedly and yodel without embarrassment.

Groupon users can also choose between a take-home teeth-whitening kit with "warm and form" trays, or $100 toward custom-made bleaching trays. Both of these options include a tube of prescription-strength bleaching gel.