Furcations

Question 1

The entrance to the mesial furcation/buccal/distal furactions are

Answer 1

M= 3, B= 4; D= 5

Question 1

The entrance to the mesial furcation/buccal/distal furactions are

Answer 1

M= 3, B= 4; D= 5

Question 2

Molars furcation locations?

Answer 2

Buccal and lingual about 1/2 way

Question 2

Molars furcation locations?

Answer 2

Buccal and lingual about 1/2 way

Question 3

Maxillary furcation locations

Answer 3

M= B-L ~2/3 toward palate; Buccal = midpoint M-D; Distal= midpoint B-L

Question 3

Maxillary furcation locations

Answer 3

M= B-L ~2/3 toward palate; Buccal = midpoint M-D; Distal= midpoint B-L

Question 4

Describe grades of Glickman furcations:

Answer 4

I: incipient but interradicular bone is intacts
II: Variable degree of bone loss in a furcation but not completely through
III: through and through with no recession
IV: same as III but recession and you can see through it now

Question 4

Describe grades of Glickman furcations:

Answer 4

I: incipient but interradicular bone is intacts
II: Variable degree of bone loss in a furcation but not completely through
III: through and through with no recession
IV: same as III but recession and you can see through it now

Question 5

Describe the Hamp classifications of furcations: (3)

Answer 5

Degree I: horizontal loss < 3 mm
Degree II: horizontal > 3mm but not total width
Degree III: through and through (same as glickman 3)

Question 5

Describe the Hamp classifications of furcations: (3)

Answer 5

Degree I: horizontal loss < 3 mm
Degree II: horizontal > 3mm but not total width
Degree III: through and through (same as glickman 3)

Question 6

ABC furcation classifications?

Answer 6

A= 1-3; B= 4-6; C= 7+

Question 6

ABC furcation classifications?

Answer 6

A= 1-3; B= 4-6; C= 7+

Question 7

What can a CBCT detect?

Answer 7

Furcations, Fusion of roots, Periapical lesions, root proximity, perio-endo lesions

Question 7

What can a CBCT detect?

Answer 7

Furcations, Fusion of roots, Periapical lesions, root proximity, perio-endo lesions

Question 8

With the CBCT, what did it detect vs. clinically?

Answer 8

27% confirmed; 29% overestimated; 44% underestimated

Question 8

With the CBCT, what did it detect vs. clinically?

Answer 8

27% confirmed; 29% overestimated; 44% underestimated

Question 9

There is a higher prevalence in what mandibular molar?

Answer 9

1st molars have higher prevalence FI. 1st also have shorter root trunks.

Question 9

There is a higher prevalence in what mandibular molar?

Answer 9

1st molars have higher prevalence FI. 1st also have shorter root trunks.

Question 10

List MAX roots shortest to longest

Answer 10

DB - MB - Palatal. HOWEVER, MB has the most surface area.

Question 10

List MAX roots shortest to longest

Answer 10

DB - MB - Palatal. HOWEVER, MB has the most surface area.

Question 11

In mandibular molars, which root is normally longer?

Answer 11

Mesial = more surface area so you would want to remove the distal

Question 11

In mandibular molars, which root is normally longer?

Answer 11

Mesial = more surface area so you would want to remove the distal

Question 12

What % of surface area is the mand molar root trunk?

Answer 12

~30%

Question 12

What % of surface area is the mand molar root trunk?

Answer 12

~30%

Question 13

In Max molars, which root has least surface area?

Answer 13

DB root has the least surface area so we would remove this.

Question 13

In Max molars, which root has least surface area?

Answer 13

DB root has the least surface area so we would remove this.

Question 14

Which root on MAX molar has the most surface area?

Answer 14

MB root > palatal > DB

Question 14

Which root on MAX molar has the most surface area?

Answer 14

MB root > palatal > DB

Question 15

Which molar has a wider furcation?

Answer 15

first molar

Question 15

Which molar has a wider furcation?

Answer 15

first molar

Question 16

What might inhibit you from finding a CIII FI?

Answer 16

intermediate bifurcational ridges

Question 16

What might inhibit you from finding a CIII FI?

Answer 16

intermediate bifurcational ridges

Question 17

Mand molars have concavities in which roots?

Answer 17

M= 100%; D=99%

Question 17

Mand molars have concavities in which roots?

Answer 17

M= 100%; D=99%

Question 18

Max molars have concavities in which roots?

Answer 18

MB: 94%; DB: 31%; P=17% but not very severe

Question 18

Max molars have concavities in which roots?

Answer 18

MB: 94%; DB: 31%; P=17% but not very severe

Question 19

Other than plaque, what other factors can predispose perio lesions?

Answer 19

1. trauma from occlusion 2. Cervical enamel projections 3. Pulpal-periodontal dz 4. Iatrogenic 5. Root fractures

Question 19

Other than plaque, what other factors can predispose perio lesions?

Answer 19

1. trauma from occlusion 2. Cervical enamel projections 3. Pulpal-periodontal dz 4. Iatrogenic 5. Root fractures

Question 20

Why is perio associated with trauma from occlusion controversial?

Answer 20

Bc the PDL at the roof of the furcation is horizontal and recieves lateral type crushing forces

Question 20

Why is perio associated with trauma from occlusion controversial?

Answer 20

Bc the PDL at the roof of the furcation is horizontal and recieves lateral type crushing forces

Question 21

Cervical enamel projections can cause perio bc?

Answer 21

plaque accumulation. Graded 1 -3 where 3 actually enters furcation.

Question 21

Cervical enamel projections can cause perio bc?

Answer 21

plaque accumulation. Graded 1 -3 where 3 actually enters furcation.

Question 22

What can contribute to a perio-endo lesion?

Answer 22

Accessory canals

Question 22

What can contribute to a perio-endo lesion?

Answer 22

Accessory canals

Question 23

What type of iatrogenic lesions can cause a FI?

Answer 23

overhang margin, pin perforation

Question 23

What type of iatrogenic lesions can cause a FI?

Answer 23

overhang margin, pin perforation

Question 24

Controlling GI

Answer 24

1. Control of Inflammation (end tuff brush) 2. Adjustment of Occlusion 3. Closed Root Planing 4. Open Root Planing 5. Pocket Elimination

Question 24

Controlling GI

Answer 24

1. Control of Inflammation (end tuff brush) 2. Adjustment of Occlusion 3. Closed Root Planing 4. Open Root Planing 5. Pocket Elimination

Question 25

Controlling GII degree I

Answer 25

1. Scaling & root planing 2. Local antimicrobials 3. Maintenance 4. Open flap debridement 5. Pocket elimination 6. GTR (with or without grafts).

Question 25

Controlling GII degree I

Answer 25

1. Scaling & root planing 2. Local antimicrobials 3. Maintenance 4. Open flap debridement 5. Pocket elimination 6. GTR (with or without grafts).

Question 26

Controlling GII degree II

Answer 26

osteoplasty and ostectomy sometimes is bad for deep furcations bc you might sacrifice support; might need endo?; GTR OFD

Question 26

Controlling GII degree II

Answer 26

osteoplasty and ostectomy sometimes is bad for deep furcations bc you might sacrifice support; might need endo?; GTR OFD

Question 27

Which is better for CII DII - membranes or OFD?

Answer 27

GTR

Question 27

Which is better for CII DII - membranes or OFD?

Answer 27

GTR

Question 28

Options for grade III furcations

Answer 28

Closed and open flap SRP OR Create a Grade IV Tunnel; Hemisections and crowning it; root resections;

Question 28

Options for grade III furcations

Answer 28

Closed and open flap SRP OR Create a Grade IV Tunnel; Hemisections and crowning it; root resections;