Current president Barack Obama ranks 21st in wealth. The figures in the table below are all from 24/7 Wall St.'s 2010 valuation of each president's peak net worth, except for the lower figure for John F. Kennedy, which comes from the Christian Science Monitor.any of these early presidents were landowners, and some of them owned plantations, including their own slaves. At the time of his death, Washingtonâs land, slaves, house, horses and personal belongings were worth about $525,000, estimated to be the equivalent of $1 billion today.
Periodontitis is caused by microorganisms that adhere to and grow on the tooth's surfaces, along with an over-aggressive immune response against these microorganisms.he 1999 classification system for periodontal diseases and conditions listed seven major categories of periodontal diseases, of which 2-6 are termed destructive periodontal disease because the damage is essentially irreversible. The seven categories are as follows: 1  Gingivitis.
Periodontitis/gum disease. Chronic inflammation and destruction of supporting bone and tissue membrane around the roots of teeth. Root planing. A treatment of periodontal disease that involves scraping the roots of a tooth to remove bacteria and tartar.