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.
Quick Answer. The first recorded earthquake occurred in at Mount Tai, located in eastern China's Shandong province. According to the ancient Chinese chronicle, the Bamboo Annals,â the earthquake took place during Emperor Fa's 7th year of reign as monarch of the Xia Dynasty. Continue Reading.