Softening Edges on Tooth Aligners
As an alternative to metal and wire braces, many people are using these plastic tooth aligners to straighten the teeth and improve their smile. These aligners are custom made for each individual.
When cast with the plastic and cut, the edges are sharp and plastic needs to be polished. In addition to their primary function, these parts need to have soft edges, so they do not cut or damage the gums, and they must be clear for an aesthetic finish.
These parts (after on the right) were tumbled for about 12 hours in a barrel tumbler with a Premium Ceramic Tumbling Media. This left the parts with a soft edge and a clear, bright surface finish.