Furcation Index

Question 1

What exists when a periodontal probe extends less than halfway under the crown in any direction of the multirooted tooth with attachment loss?

Answer 1

Furcation 1
Stage 1 (F1)

Question 2

What exists when a periodontal probe extends greater than halfway under the crown of a multirooted tooth with attachment loss but not through and through

Answer 2

Furcation 2
Stage 2 (F2)

Question 3

What exists when a periodontal probe extends under the crown of a multirooted tooth, through and through from one side of the furcation out the other

Answer 3

Furcation 3
Stage 3 (F3)

Question 4

Tooth Mobility Index Stage 0 (M0)

Answer 4

Physiologic mobility up to 0.2 mm

Question 5

Tooth Mobility Index Stage 1 (M1)

Answer 5

The mobility is increased in any direction other than axial over a distance of more than 0.2 mm and up to 0.5 mm

Question 6

Tooth Mobility Index Stage 2 (M2):

Answer 6

The mobility is increased in any direction other than axial over a distance of more than 0.5 mm and up to 1.0 mm

Question 7

Tooth Mobility Index Stage 3 (M3)

Answer 7

The mobility is increased in any direction other than axial over a distance exceeding 1.0 mm or any axial movement