Baking soda teeth whitening?

I googled brushing with baking soda to whiten teeth, and everybody said it worked great. The only problem is, I saw something that said if you have braces or a permanent retainer glued to your teeth not to use it because it dissolves orthodontic glue. I just got my braces off about 2 months ago and I have a... show more I googled brushing with baking soda to whiten teeth, and everybody said it worked great. The only problem is, I saw something that said if you have braces or a permanent retainer glued to your teeth not to use it because it dissolves orthodontic glue. I just got my braces off about 2 months ago and I have a permanent retainer glued to the back of my bottem teeth...What if im really careful & dont touch it on the back of my teeth and I only brush the front side of my bottem teeth? Has anybody tried this?
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