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.
Along Faults. Earthquakes can also occur far from the edges of plates, along faults. Faults are cracks in the earth where sections of a plate (or two plates) are moving in different directions. Faults are caused by all that bumping and sliding the plates do. They are more common near the edges of the plates.
Best Answer: Earthquakes commonly occure when the plates collide, volcanoes are caused by the spaces between the plates where the magma flows between them and rises to the surface, and mountains are a result of a plate running over another one (so to speak) and the result is that it thrusts the land up.ell convergent boundarie(a plae where plates that move towards one another) one moves beneath the other one, thus forming mountains and volcanoes.... and transfrom boundaries(where two plates grind or slide against eah other) can be a fault line causing earthquakes.