My daughter had protruded tooth and she decided to wear braces. In order to wear braces, she had to extract 4 of her teeth. She started wearing braces after the extraction. Brushing was difficult with braces on. She somehow managed to brush every day. As braces became tightened, she couldn’t brush her teeth as it was very painful. She skipped brushing and did flossing every time. Then, after her teeth got corrected, she removed her braces. Now her teeth have stains and looks yellowish in color. We moved to Calgary last week. Now she is saying that she needs to do teeth whitening as her teeth look ugly. One of our neighbors suggested zoom teeth whitening system. How about it? Share if you have any experience with it. Thanks!