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@lhasa.one wrote:

I think it's dental ORTHodontal) as opposed to ORTHOpedic, but I  really don't know what it is, just a hunch.

 

Why not pop in to Boots and ask them, or better still your local dentist?

 

 

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mmmmmm, that's a thought, I may just do that next time I am in town. TY