A few weeks ago at the park Autumn tripped on the equipment and fell face first into the blue, metal bar holding up the walkway. In the process she must have hit her tooth in addition to her head. It isn't graying or dead - but she has BLUE paint or something stuck in the enamel! Is there anything I can do to remove it? I've tried scrubbing it with a toothbrush, but nothing. Any ideas? Is she stuck with this blue accessory until she looses the tooth?