1 Inflammation of the gingiva, bone loss, and increased gingival recession may progress slower than with other forms of periodontitis.  Periodontitis Associated with Systemic Diseases - Systemic diseases, such as heart disease, diabetes, and certain forms of arthritis, may have a correlation with periodontitis.
Main Content. An earthquake is ground shaking caused by a sudden movement of rock in the earthâs crust. Such movements occur along faults, which are thin zones of crushed rock separating blocks of crust.
Earthquakes occur as a result of energy or the seismic waves of tectonic plates sliding against each other. So a place where these tectonic plates are not present, that place will not face an earthquake. It is said earthquakes don't occur in Britain. Written Dec 24, 2013 â¢ View Upvotes.