Chronic gingivitis. A reversible, mild stage of periodontal disease. This is marked by inflammation, redness, and bleeding gums. There is no bone loss with gingivitis.nAggressive periodontitis. A rapid loss of gum attachment and bone destruction in a short period.nChronic periodontitis. The most common form of periodontitis. It progresses slowly.nNecrotizing periodontal disease. An infection resulting from the death of gum tissue surrounding the tooth and connecting bone. Its common symptoms are a foul odor and painful bleeding gums.