Paso Robles, CA, in San Luis Obispo County, Wedding Guide…Dr. Grant E. Marcum offers $100 off (single procedure) $125 off (2 or more) Brite*Smile One Hour Teeth Whitening (reg. price $550) an in office treatment. Most treatment is performed on the same day with results up to 15 shades lighter in one hour. Best results if you have had a dental cleaning within the past 6 months. Studies show the color is stable for 2-3 years following treatment if you adhere to strict guidelines the first 24 hours following the treatment. If you are interested call for a complementary consultation today. GEMsmiles.com 1004 Vine Street, Paso Robles, CA (805)238-1033.