Stage I

Initial gum disease and periodontitis - minimal plaque; reddened gums.


   stage one
Stage II   Early gum disease and periodontitis - greater plaque and calculus accumulation; swollen gums; some   bleeding from the gums.   stage two
Stage III   Established gum disease and periodontitis - moderate calculus accumulation; severely swollen gums; gingival pockets. Immediate danger of irreversible tooth damage.   stage three
Stage IV   Advanced gum disease and periodontitis - large accumulation of dental deposits; gum recession; loose teeth; bone loss. Often involves mandatory tooth extraction(s).   stage four