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).
Donated medically processed human tissue can also be used for the grafting procedure, according to the AAP. In addition to stopping the process of gum recession and bone loss, gum grafts can reduce tooth sensitivity (especially to hot and cold foods) and protect the roots of your teeth from root decay.