I am from the UK and I live in California now. I went to the dentist recently after not going for a couple of years and I thought I had no
problems, yeah right!
The dentist told me that I was missing one of the teeth that sit at the front, most people have four teeth at the front, I have three due to the dentist in UK taking out the wrong tooth. I still have a baby tooth and my Palette is too narrow. I think the philosophy in UK is 'if the teeth are not rotting, your OK'.
I am happy though that I am taking care of these problems.
Anyway, if anyone has any advice about the expander I would greatly appreciate it. Thanks

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