Nance retainer orthodontic model used to prevent mesial drift of the molars, the Nance uses an acrylic button in the palatal vault to provide anchorage. A .036 wire is embedded in the button and extends back to the molars where it is soldered to bands.
Orthodontic Retainer & Model features excellent demonstration and teaching tool for Orthodontic Dental Schools and Students who desired to learn, practice Orthodontic Techniques in Dental School, at home, on the go. This techniques a mast foundation of future professional orthodontic practice.