Hello doctor,I am a 13-year-old male. I tried this relatively cheap BleachBright StarBright Dual-Action whitening pen. After using it I noticed white spots forming all over my teeth. It was the weirdest thing. I have always had white spots on and off throughout my life, but after using this, within five minutes I had a bunch of them appearing. Is this an allergic reaction? How do you recommend I get rid of them? Should I consult my dentist? Should I continue using my whitening pen? Of note, I am currently on Guanfacine.
Hello, Welcome to Chat Doctor forum. As per your symptoms, the white spots on the teeth are due to hypocalcified areas that are areas of poor mineralization. Bleaching makes them more pronounced and they can further stand out on the teeth. It is not an allergic reaction but this has happened due to a more clear appearance of hypocalcified areas. The spots will become less pronounced as the days pass by and teeth will continue to hy ChatDoctor.  Please do not use your whitening pen further and for any cosmetic dental treatment, it will be better to consult a cosmetic dentist. Regards. For more information consult a dentist online 