Sweep 3

Question 1

Contraindications to gingivectomy - one of them is to not extend beyond MGJ - because

Answer 1

this is beyond keratinized tissue, you will be in mucosa if you do this.

Question 2

Suprabony pocket

Answer 2

attachment loss, soft tissue issue however

Question 3

partial thickness good for

Answer 3

soft tissue grafting (blood supply still on PDL)

Question 4

Coronallypositionedflaps

Answer 4

(needtoelevate past MGJ; do not need to do significant scalloped incisions)

Question 5

• Laterallypositionedflaps

Answer 5

needtoelevatepast MGJ)

Question 6

It is not possible to perform an apically positioned flap on the

Answer 6

palate.

Question 7

Expected conservative flaps

Answer 7

Expected outcome = pocket reduction through resolution of inflammation and LJE

Question 8

faster epithelial migration along the inner surface of the wound resulting in a

Answer 8

LJE interface

Question 9

• Debridement by

Answer 9

inflammatory cells.

Question 10

• Regeneration of

Answer 10

parenchymal cells.

Question 11

• Migration and proliferation of

Answer 11

parenchymal and connective tissue cells.

Question 12

More than 70% bone loss around root, better to extract than

Answer 12

osseous surgery.

Question 13

Osseous defects can be regenerated in most

Answer 13

Class II, most 3 wall defects, some 2 wall defects.

Question 14

The goal in Periodontal Regeneration is

Answer 14

new attachment (“true” new attachment

Question 15

Apically positioned flap:

Answer 15

*can move soft tissue apically without removing it.

Note: 6-8 weeks healing time necessary prior to final impressions

Question 16

Ridge Augmentation
• Preparation of a pontic area:
The best approaches are

Answer 16

onlay grafting and
submucosal connective tissue grafting

The best approach is the hard tissue augmentation procedure

Question 17

• Coronally positioned

Answer 17

– For regeneration or root coverage

Question 18

Mod widman flap

Answer 18

cut in front of sulcus, in sulcus, perpendicular to sulcus to remove that tissue.

Question 19

Epithelial healing requires ——–, and healing is complete in ———. Bone resorption and attachment loss are common.

Answer 19

7 to 14 days

6 to 7 weeks

Question 20

Less post surgical bone resorption due to increased cancellous bone

Answer 20

palatal approach

Question 21

Electrosurgery ⇒ cauterizes, but lose

Answer 21

tactile feedback (potential osteonecrosis if burn root)

Question 22

o Resection (both hard & soft tissue)’

Answer 22

• Elimination of periodontal pockets (can remove outer moat defect)

Question 23

With partial thickness flaps, o Suture gingiva so

Answer 23

mucogingival jxn positioned apically

Question 24

In partial thickness flaps, o Exposed coronal CT directs

Answer 24

epithelial formation

Question 25

• Coronal position → for

Answer 25

regeneration or root coverage

Question 26

• Replaced → for

Answer 26

conservative flaps (minimal recession)

Question 27

• Apical position →

Answer 27

for pocket elimination or crown lengthening

Question 28

• Silk → cheapest, but needs to be removed in — days (induces host response)

Answer 28

10

Question 29

• Polyester (nylon; PTFE) → expensive, but can stay in for

Answer 29

3-4 weeks

Question 30

Chromic gut used for

Answer 30

Rapidly healing mucosa

Question 31

Coated vicryl used for

Answer 31

Subepithelial mucosal surface

Question 32

Surgical silk used for

Answer 32

Mucosal surfaces

Question 33

e-PFTE used for

Answer 33

all tissues

Question 34

o Simple loop modification -

Answer 34

most commonly used

Question 35

o Figure 8 modification -

Answer 35

lower posteriors

Question 36

o TNF & IL-1B ⇒ activates

Answer 36

endothelium & induces PMN migration

Question 37

• Guided tissue regeneration

Answer 37

o Full thickness flap; coronally positioned flap
o Sulcular incision
o Additional vertical incisions if needed to coronally position

Question 38

• Lingual approach ⇒

Answer 38

ideal for mand. Arch (crater defects)

o Keratinized gingiva on palate
o Larger palatal embrasure for surgical access
o Less post-surgical bone resorption due to increased cancellous bone

Question 39

Palatal approach ⇒

Answer 39

ideal for max. Arch (crater defects)

o Avoidance of thick shelves of bone
o Avoidance of shorter root trunks on facial of mand. Molars
o Lingual inclination of mand. posterior teeth
o Craters more lingual
o Lingual embrasures wider

Question 40

Autogenous graft disadvantage -

Answer 40

o Membranous bone vascularizes faster & resorbs slower than endochondral bone

Question 41

Furcation
• Mandibular molars ⇒
• Max. molars ⇒

Answer 41

buccal entrance > lingual

Mesial > distal > buccal

Question 42

Furcation
• Mandibular molars ⇒
• Max. molars ⇒

Answer 42

buccal entrance > lingual

Mesial > distal > buccal