Periodontal treatment is the specialist cleaning of your teeth and gums to help control the bacteria that cause gum disease. Gum disease is caused by the germs (bacteria) which live in your mouth. The bacteria stick to your teeth, irritate the gums and make them bleed.
(Redirected from Ground effect in aircraft) In fixed-wing aircraft, ground effect is the increased lift (force) and decreased aerodynamic drag that an aircraft's wings generate when they are close to a fixed surface. When landing, ground effect can give the pilot the feeling that the aircraft is floating.
Body kits and ground effects kits are based on modifications made to race cars that enable them to slice through the air with minimum resistance and hug the track for traction. Contents of kits will vary according to vehicle and manufacturer, but generally ground effects kits include a front lip spoiler or air dam, side skirts, and maybe a rear air dam.