If periodontitis is not treated promptly, the structures holding the teeth could get damaged below the gum line without being seen.
Some noticeable signs of gum inflammation (gingivitis) and periodontitis:
Discolored, red, and swollen gums
Bleeding when brushing or flossing teeth (Bleeding is less for smokers.)
Bad breath caused by bacterial plaque
Shifting teeth and open spaces between teeth due to bone loss in jaws
Loose teeth with advanced periodontitis