An air pollutant is a substance in the air that can have adverse effects on humans and the ecosystem. The substance can be solid particles, liquid droplets, or gases. A pollutant can be of natural origin or man-made. Pollutants are classified as primary or secondary.
How is gum graft surgery performed? During gum grafting surgery, a periodontist will commonly take connective tissue from the roof of the mouth (palate) and suture it to the affected gumline. This allows more tissue to grow and close the exposed root surface (gum recession).
Basically, it can cause an allergic reaction-ie mouth ulcers. Everyone in here raves about Squiggle toothpaste as it is SLS free but I use Sensodyne Whitening as this doesn t have it either.....though if you read the back of the box, they all list the nasties in the paste so get reading!! Hope this is of some help.