KöR Whitening

In our general practice in Minnesota, we are rather choosy about products and materials we offer to our patients. Kor has become our unanimous choice to recommend to our patients for their whitening needs. We have reached the conclusion based on the assessments made by Dr. John Kois and others that Kor is the safest, least damaging, and most effective whitening option currently available. Other manufacturers' products have excessive acidity (Kor pH is neutral) or issues being kept cold during shipping, which undermines effectiveness of the product ... Kor has overcome these problems, and consistently delivers a safe, high-quality, effective product.
Jun 7th, 2023

May 9th, 2023

Kor whitened my teeth that were permanently darkened by taking tetracycline as a child. My tetracycline band is no longer visible. My dentist worked and worked on my teeth in his office and I occasionally use my trays for touch up. Its definitely worth $800.
Apr 2nd, 2022

I am VERY unhappy about this product. They made very expensive poor quality whitening trays. When my patient wore it, the gel burnt the patients lips. Patient was so upset and threatening. I apologized to patient and to calm her down but she threw the trays at me and left without paying. Then I called Kor, and they not only did not apologize or offer a solution but they started accusing me and patient. They said we don't care if you leave us. Not only they did bad work on the trays, the gel didn't work either to whiten the teeth. MOREOVER, the service Is so poor and they don't really care about the dentists nor their patient's health. BUT, they do care about the money they make while giving poor service and products. Very sad. I DO NOT recommend them. P.S. I had to give one star only because there was no option for no star.
Aug 31st, 2020