So what if it is metal, the guy was just trying to help you. There are two types of mouth props, one is rubber and the other loks like scissors and it is metal.
Thanks for the reply. FYI the mouth prop I need is a molt prop which is a metal prop.
a mouth prop is a simple rubber item. it should cost no where near $50. I wold ask a dentist that you have a good relationship with to order one for you out of his dental supply company's catalog.
I really don't know anything about this item, but I would hope if a dentist could order it for you he would only give it to you at cost or make it a gift for your son.