Healthy gums – no bleeding
Gingivitis – bleeding but no gum recession
Gingivitis – bleeding & plaque build up (no gum recession)
Mild periodontitis – slight recession
Advanced periodontitis – gum recession
Minor Ulcer
Small (2-8mm in diameter) and normally heal naturally within 10-14 days
Major Ulcer
1cm or more in diameter. This type of ulcer will heal more slowly, over a period of several weeks