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).
However, there is always some risk of injury with the use of appliances. Because your braces cover your teeth, a blow or knock to the mouth can scratch or cut the inside of your lips or cheeks. Be sure to wear a mouthguard when taking part in sports or physical activity.owever, there is always some risk of injury with the use of appliances. Because your braces cover your teeth, a blow or knock to the mouth can scratch or cut the inside of your lips or cheeks. Be sure to wear a mouthguard when taking part in sports or physical activity.