My braces are giving me a funny lisp

Yes, I do wear braces (at night) and, yes, they are braces, not retainers (though they resemble them). They're removable, I tighten/open them myself and I need to get the progress checked on, during my stay in Brasil: I don't think they're accomplishing the purpose of aiding in gum health, although they have straightened that extremely errant tooth...