If your eyes are the windows to your soul, your teeth are the white picket fence that protect the soul from oversized bites of taffy. Strengthen your defenses against attacks on the soul with today's Groupon: for $99, you get one Zoom! teeth-whitening session at El Dorado Dental (a $300 value).

The mouth-maintenance facility’s skilled dentists keep teeth sparkling with up-to-date dental whitening services. El Dorado Dental’s door leads straight to an adventurous world of cosmetic tooth care. Guests relax as a certified tooth technician preps patients' gums before applying the patented Zoom! whitening formula. Once gelled up, teeth are blasted with three 15-minute bursts of light from the special Zoom! lamp, activating the bleaching gel and oxidizing staining and discoloration into sweet, sweet oblivion. Acting as a fountain of youth for toothy sidekicks, the whitening resists fading and re-staining with proper care, as long as recipients brush, floss, and bathe their teeth twice a day.