It is often asked, “What is the difference between carbamide peroxide and hydrogen peroxide, and which one works better for teeth whitening or tooth bleaching?” This monograph reviews the literature and research to find the answer to this oft-times perplexing question. There are many differing opinions put forth by various bleach manufacturers, suppliers, and cosmetic teeth whitening companies, but along with their claims of one type being superior to the other, they usually don’t show any scientific proof and research to back up their arguments. This will set the record straight by showing what the science is behind peroxide bleach in each of its forms. Instead of relying on hearsay and advertising hyperbole, it is this science that SmileLABS™ uses to formulate their proprietary bleaching gels.
Historically, modern cosmetic teeth whitening or teeth bleaching began in 1989 when a pioneering dentist, Dr. Van B. Haywood, invented a treatment modality for his patients that wanted whiter, brighter teeth. Using a very weak bleach, specifically 10% carbamide peroxide in a viscous gel form, he placed it in an easily made dental appliance called a nightguard (used for patients that suffered from nocturnal bruxism or teeth grinding.) His patients wore this custom-made appliance against their upper teeth for a period 10-14 days while they slept every night. Then the same treatment was done for the lower teeth. Some dentists still use this exact method as one of their treatment options for teeth bleaching.[i]