Causes of failure in non-surgical periodontal treatment
Bacterial
Residual calculus with retained biofilm
Anatomical
Pa7ent
Restora7ve
MH
Poor plaque control
Overhangs
Diabetes
Poorly mo7vated
Subgingival margins
Drug induced overgrowth
Poor manual dexterity
Overcontoured crowns
Obesity
Hyperinflammatory state /Gene7cs
Poor embrasure space
Smoking
Root grooves Concavi7es Furca7ons
Endotoxin contamina7on
Poor soA 7ssue contour Fraenal aBachments Poor access
Subgingival plaque
Infrabony defects / craters Deep, tortuous pockets