Here you get to the dentist only 16% strength whitening gel, and so I came nothing but headaches. The first two nights when I wore the rails, her teeth brightened slightly, then in the subsequent nights I could find no visible brightening more. I wore the rails for a week every night, could only sleep badly and was dissatisfied with the result.
Soon after I ordered from Amazon of 20% Bleaching Gel same company and carried the rails each day for a few hours. The teeth were indeed bright, but after the spraying had been used up, I was still not satisfied with the color of my teeth. Unfortunately, the 20% Bleaching Gel was then no longer available at Amazon, and I pondered long whether I should order the 24Carat product because of the partially negative reviews. Concern I had, because my teeth were very sensitive to pain during the application of the 20% gel. But that was probably only because I before applying my amalgam fillings be removed had a couple of weeks.
Since now 5 days I use this gel daily each about two to three hours, and am very pleased with the effect. The teeth shine again! - They are now almost white and so much brighter than it was 5 days ago.
The teeth are somewhat sensitive directly after applying - I feel a "pull" when I ausspĆ¼le mouth with cold water. Otherwise I have no complaints. The gel itself triggers no reaction, I could therefore carry the rail longer than three hours if I wanted to.
Thus the result is satisfactory, you should keep a few things according to my dentist:
Before whitening should be allowed to carry out a professional tooth cleaning. There tartar are removed and the teeth polished. Without PZR there can be smudges while whitening.
On the days where one carries the rail, you should refrain from coffee - coffee can cause discoloration.
Unpleasant taste I get nothing with. If someone has problems with the taste while wearing the splint, which is in my opinion to an overdose, so that the gel comes out of the track and is distributed in the mouth.
I personally am very satisfied and can only recommend the gel without hesitation.