Dear Editor, The melamine foam consists of formaldehyde–melamine–sodium bisulphate copolymer. It is primarily utilized in insulation and soundproofing . Being an effective abrasive, the foam is also used as a component in erasers and polymeric cleaning products . The foam is hard with micropores, and when used for cleaning it works like extremely fine sandpaper, getting into tiny grooves and pits in the object being cleaned. Rubbing with a slightly moistened melamine foam removes otherwise ‘uncleanable’ external markings from surfaces. The foam wears away on use leaving a residue . In dentistry, the abrasive property of the melamine foam has found its relevance for removing stains and cleaning tooth surfaces (both natural and artificial teeth). An at‐home teeth whitening product, ‘dental peeling sponge’, contains this foam mounted onto a handle for use (Fig. ). It is available in China, Japan, Hong Kong and worldwide through online shopping. According to the manufacturers, the dental peeling sponge can remove stains on the natural tooth surfaces. The users have to wet the foam with water, rub on discoloured tooth surface, and then wash with water. Precautions include ‘use only once a week’ and ‘avoid contact with gums’. Tanaka et al .
International Journal of Dental Hygiene – Wiley
Published: Nov 1, 2015