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).
Gum Grafting / Recession. Aggressive tooth brushing, periodontal disease, and genetically thin tissue can lead to gum recession, which ultimately results in exposed tooth roots. When tooth roots are exposed, teeth appear too long and can become sensitive to hot and cold liquids and foods. Also, the exposed roots are in danger of decay.