Periodontitis Enlarge image. Periodontitis (per-e-o-don-TIE-tis), also called gum disease, is a serious gum infection that damages the soft tissue around teeth. Without treatment, periodontitis can destroy the bone that supports your teeth. This can cause teeth to loosen or lead to tooth loss. Periodontitis is common but can usually be prevented.
https://www.mayoclinic.org/diseases-conditions/periodontitis/symptoms-causes/syc-20354473