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).
Repairing Chipped Teeth With Crown & Veneers. If you have a chipped tooth in the back of your mouth, the dentist may recommend a dental crown. An AACD dentist will often use a tooth colored crown made of porcelain or zirconia. It is important that the material be durable and strong to withstand the clenching force.