Furcation

Question 1

• Pocket formation into the flute of
  the furca, but the inter-radicular
  bone is intact.

Answer 1

Goldman-incipient or Glickman-
Grade I

Question 2

• Loss of inter-radicular bone with
  pocket formation of varying depths
  into the furca, but not completely
  through to the other side.
• Can be shallow or deep

Answer 2

Goldman-cul-de-sac or Glickman-Grade
II (shallow and deep)

Question 3

• Complete loss of inter-radicular
  bone with pocket formation
  allowing probe to pass
  completely to the other side

Answer 3

Goldman-through and through or
Glickman-Grade III

Question 4

• Loss of attachment and gingival
  recession that has made the
  furcation clearly visible to clinical
  examination

Answer 4

Glickman-Grade IV

Question 5

____ furcation classification- classification of the horizontal
component of furcation involvement
*

Answer 5

Hamp (75)

Question 6

Hamp furcation classification Degree ___:
horizontal loss less than 3 mm

Answer 6

• Degree 1

Question 7

Hamp furcation classification Degree ___
horizontal loss >3 mm but not
the total width of furcation area

Answer 7

Degree 2:

Question 8

Hamp furcation classification Degree ___
through and through

Answer 8

Degree 3:

Question 9

____ furcation classification:
classification of the vertical
component of furcation involvement

Answer 9

Tarnow (84)

Question 10

Tarnow furcation classification Subclass ___:
vertical loss up to 1/3 of
furca (1-3 mm)

Answer 10

Subclass A:

Question 11

Tarnow furcation classification Subclass ___:
vertical loss up to 2/3 of
furca (4-6 mm)

Answer 11

• Subclass B:

Question 12

Tarnow furcation classification Subclass ___:
vertical loss into the apical
third (>7mm)

Answer 12

Subclass C:

Question 13

T/F: Grade/Class II or Grade/Class III furcation
involvement automatically places patient
into Stage III or Stage IV Periodontitis.***

Answer 13

True

Question 14

Where is the mesial furcation on max molars BL and which way do you access it?

Answer 14

Mesial furcation toward palatal 1/3 so
probe from palatal

Question 15

Where is the distal furcation on max molars BL and which way do you access it?

Answer 15

Distal furcation in mid 1/3 (under contact
point) so probe from palatal (or buccal)

Question 16

What is the incidence ranges for cervical enamel projections?

Answer 16

17-33%

Question 17

What tooth and demographic are more likely to get CEPs?

Answer 17

Asian: mand second molars

Question 18

What is root trunk length on max first molar on mesial?

Answer 18

3 mm

Question 19

What is root trunk length on max first molar on facial?

Answer 19

4 mm

Question 20

What is root trunk length on max first molar on distal?

Answer 20

5 mm

Question 21

What is root trunk length on mand first molar on facial?

Answer 21

3 mm

Question 22

What is root trunk length on mand first molar on linugal?

Answer 22

4 mm

Question 23

What is the root trunk length on mesial of max 1st pm?

Answer 23

8 mm

Question 24

What tooth has ~99% incidence of root concavities on mesial and distal roots?

Answer 24

Mand molars

Question 25

____% of furcations can't be instrumented with hand instruments when they are new

Answer 25

58%

Question 26

What is the incidence in % of lateral canals in furcation areas?

Answer 26

28%

Question 27

____% of mand first molars ahve ridges in m-d direction

Answer 27

73%

Question 28

____% of mand first molars have ridges in b-l direction

Answer 28

63%