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.
System Grounding: The intentional connection of a. phase or neutral conductor to EARTH for the propose of. controlling the voltage to EARTH or GROUND within. predictable limits. It also provides for a flow of current that will. allow detection of an unwanted connection between system. conductors and ground which may instigate operation of.