When does furcation involvement occur?
When periodontal disease extends to the bifurcation area of multirooted teeth.
Describe Grade 1 Furcation.
Horizontal bone loss NOT exceeding 1/3 of tooth width.
How would you treat a Grade 1 furcation?
Scaling and Root Planing
What is a Grade 2 furcation?
Horizontal loss of bone support greater than 1/3 of the tooth width but not the total width of the furcation area.
What is a Grade 3 furcation?
Horizontal destruction in furcation area.