Periodontists specialize in treating advanced gum disease, and work together with your general dentist to care for oral health by halting the progression of periodontitis and subsequently treating the various forms of gum disease.
What is the origin of an earthquake called in CA? Well, the origin of the earthquake is called the focus, and the point on the ground directly above the focus is called the epicenter. In CA, earthquakes generally originate frâ¦om the San Andreas Fault. Susie Harrell.
actual mechanism(elastic rebound theory) of earthquake generation discovered following the 1906 Earthquake, idea of faults first proposed by earthquake an event where two pieces of crust shift against each other, (the vibration of Earth, produced by the rapid release of energy), extremely common, as many as 8,000 per day but too small to be felt