In emergency situations, moonlight reflected off pearly whites creates a beaming beacon that registers in the canine-visible spectrum of light. With today's Groupon, equip your smile with brightness that can one day save your life: for $49, you get a dental exam, teeth cleaning, and x-rays (a $294 total value) from Joshua Tanz, DDS, whose practice is located in Sherman Oaks.

Dr. Joshua Tanz has been practicing the dental arts for 25 years, using expert knowledge and dexterous hands to protect smiles and quell plaque uprisings. Sidle up teeth-first to his comfy, welcoming office chamber, where chompers are treated to a personalized primping and brightening. Dispensing of any sidekicks, Dr. Tanz will personally peer deep into your mouth for signs of trouble (exam, $80), take pictures of your teeth for the office yearbook (x-rays, $119), and address any concerns, pains, or existential ennui before degunking your charming chompers with a thorough cleaning ($95).

Dr. Tanz has both studied and taught tooth wizardry at the USC School of Dentistry, and he uses his continuing education to pass pearls of wisdom to patients. You’ll leave feeling confident, mouth fresh and grin shiny, prepared to out-happy a talent-show toddler or out-sparkle the finest rhinestone goblets. Call ahead to schedule your appointment; redeem your Groupon and Dr. Tanz will offer a reduced- fee schedule on select future procedures.