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).
Cosmetic tooth contouring is permanent in the sense that the surface of your own natural teeth is removed in order to reveal a smoother tooth profile.The procedure of course cannot guard against future chips or damage created by regular wear and tear on the teeth.sing a polishing instrument, the cosmetic dentist removes small amounts of enamel to contour the tooth. This technique is most useful in cases of slight to moderate overlapping of the front teeth, slight rotation of the front teeth, uneven wear, or teeth that donât have their biting and incising edges in harmony.