step of periodontal disease / periodontitis / gingivitis / gum disease, dental problem

abscess bleeding blood care cartoon character cute dental dentist dentistry design dirty disease flat gingival gingivitis graphic gum health healthcare hygiene illustration infection inflammation isolated medical medicine pain period periodontal periodontitis plaque problem pyorrhea sample scurvy sensitive simple stages step stomatology swell swollen tartar teeth tooth toothache unhealthy vector white