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).
Dental braces are tough on the gums and jaw tissue. Since the sharp ends of the wires and the pointed parts of the appliances can gouge into the soft tissues in the mouth, causing canker sores and scrapes, orthodontists have their patients use wax to reduce these problems.