Additionally, most dental prosthetics are made outside of the mouth. And, like nail acrylic, once polymerized and cured, dental composites are safe when placed in contact with human tissue. The exposure rate is also completely different. A client who wears acrylic nails may have a fill every two weeks. The same client may only have a few dental prosthetics throughout a lifetime.
Acrylic nails are difficult or impossible to remove.
Once hardened through polymerization, acrylic nails made with MMA monomer are solvent resistant. It can take two hours or more to dissolve when immersed in a solvent, whereas nail products made with EMA take only 20 to 30 minutes to dissolve. To speed up the removal process, the salon may choose to use an electric drill or extremely coarse file to remove the MMA acrylic. Since it may be difficult to see where the nail has grown, the chance of filing into the natural nail are great, often leaving behind a damaged, thin nail plate leading to permanent nail deformities. I would recommend filing the product thin and leave the remaining layer on until it grows out.