Customer Comments:
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 Hard to get right September 3, 2008
You have to put these things in almost boiling water, then put them directly on your teeth and gums. Then you have to hold them there for about a minute while they form.
I don't have have sensitive teeth/gums and it wasn't real great for me so I don't think people with sensitive teeth/gums would be real happy about it.
It is also a little hard to form them properly to the front AND backs of your teeth.
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