Has teeth whitening damaged my teeth?

Q.
Dear Dentist

I had my teeth whitening in surgery and my dentist used 27% Hydrogen Peroxide. Since then I run my tongue over my teeth and they feel slightly rough. I ca also see abrasive brush and scratch marks on the enamel in light on my canines. And when I run my nail over them they feel lumpy. I never studied or felt my teeth like this before but could a high level peroxide potentially burn or change the texture of your enamel? I feel as if I have damaged the structure of my teeth?

Also does tooth whitening with high level peroxide permanently make the enamel more porous and prone to cavities?

Thank you for your time

A.
One study comes to mind where 10% carbamine peroxide was used over a prolonged time without undue side efects. 27% hydrogen peroxide is several orders of magnitude higher and I would check on the trade name of the product before proceeding.
Regards Rob
Dr Rob Tennet St Johns Dental Practice 18 Bennett’s Hill, Birmingham, B2 5QJ Web: www.e-dentalpractice.co.uk

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