A really unusual Dento Form Columbia Dental and X-ray company mold showing an example of early modern ligature braces circa late 1920's New York. This piece has a super creepy feel to it, I have not seen another example. Made from a cast of a persons mouth, you can see the horrible early example of ligature braces. The first modern braces used metal sheaths that went completely around each tooth with a wire fused to them. Sounds comfortable right?