The International and American Associations for Dental Research (IADR/AADR) have published a paper titled “Global Burden of Periodontitis: A Systematic Review and Meta-Regression.

In 2010, severe periodontitis was the sixth most prevalent condition in the world affecting 743 million people worldwide. Between 1990 and 2010, the global age-standardized prevalence of severe periodontitis was static at 11.2%. The age-standardized incidence of severe periodontitis in 2010 was 701 cases per 100,000 person-years, a non-significant increase from the 1990 incidence of severe periodontitis. Prevalence increased gradually with age showing a steep increase between the third and fourth decades of life that was driven by a peak in incidence at around 38 years of age. There were considerable variations in prevalence and incidence between regions and countries.