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Perio 2 exam 2 > Sweep 2 > Flashcards

Sweep 2 Flashcards

1
Q

• Annual rate of Attachment Loss =

A

0.22 mm

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2
Q

– Modified Kirkland flap (MKF) • uses ——– incisions

A

Sulcular incisions

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3
Q

Flap

– —— beveled

A

Internally

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4
Q

Exposed tissue during healing

A

gingivectomy

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5
Q

Pocket depth, amount of keratinized gingiva and intended position of the flap are essential

A

pre-treatment considerations

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6
Q

——– scalpel blades and handle for flap

A

Bard-parker

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7
Q

• Elevation past the —— will fully reflect the flap

A

mucogingival junction

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8
Q

• Coronally positioned

– For

A

regeneration or root coverage

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9
Q

• Replaced

– For

A

conservative flaps (minimal recession)

Pretty much removing interior, placing exterior back where it was.

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10
Q

• Apically positioned

– For

A

pocket elimination or crown lengthening

Same as replaced, but removed from alveolar bone, moved down.

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11
Q

Creation of bleeding points as Gingivectomy

A

knife reference points for primary incision

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12
Q

Thinned palatal flap

A

like a cross between gingivectomy and internal bevel. Cut gingiva down low, bevel, reattach at bone margin

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13
Q

Mod widman Initial incision has ——- scallop, but may also be ——-

A

0.5 to 1 mm

intrasulcular

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14
Q

With conservative flaps, there is little or no —-

A

bone resection

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15
Q

 Simple loop modification  Figure 8 modification

A

Interrupted sutures

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16
Q

 Single sling suture

 Continuous sling suture

A

Sling sutures

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17
Q

Cut the suture —— as possible to avoid dragging bacteria into the wound

A

close to the tissue

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18
Q

Phases of Postsurgical Healing

A
  • Inflammation
  • Fibroblastic granulation
  • Matrix formation and remodeling
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19
Q

Formationofbloodclotbetweenmarginsof wound and between flap and tooth or bone
• Clotincludesfibrin,neutrophils,platelets, red cells, cell debris, and capillaries at the edge of the wound

A

Healing: immediate response

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20
Q
  • Neutrophils infiltrate the connective tissue

* Epithelium begins to migrate from the wound margins

A

Healing: first 24 hours

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21
Q
  • Space between the flap and tooth or bone narrows

* Epithelial cells migrate over the border of the flap, contacting the tooth

A

Healing: 1-3 days

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22
Q
  • Epithelialmigrationcontinues
  • Neutrophilsarereplacedbymacrophages,which eliminate dead/damaged cells
  • Bloodclotisreplacedbygranulationtissue
  • Revascularizationbegins
A

Healing: 3-7 days

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23
Q
  • Epithelium attaches to the root
  • Blood clot is replaced by granulation tissue derived from gingival connective tissue, bone marrow and/or periodontal ligament
A

Healing: 1 week

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24
Q
  • Collagen fibers are oriented parallel to tooth surface (nonfunctional)
  • Union of flap to tooth is weak • Collagen fibers are immature
A

Healing: 2 weeks

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25
Q
  • Inflammatory cells are mostly gone
  • Fibroblasts proliferate, synthesize collagen
  • Revascularization process regresses
  • Gingival crevice is fully epithelialized
  • Epithelial attachment is well defined
  • Functional arrangement of supracrestal fibers
A

Healing: 1 month

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26
Q
  • Collagenhasremodeledandcross-linked

* Thewoundhasregainedmostofitsoriginal tensile strength

A

Healing: 2 months

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27
Q

When the bone is exposed by a full thickness flap, superficial bone necrosis occurs after 1 to 3 days
• Osteoclastic resorption follows, peaking at

A

4 to 6 days.

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28
Q

PDGF: induces

A

fibroblast and macrophage migration, fibroblast proliferation and macrophage activation

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29
Q

• EGF: induces

A

epithelial proliferation

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30
Q

• TGF-ß: induces

A

migration of inflammatory cells and proliferation of fibroblasts

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31
Q

gingival inflammation extends along

A

collagen fiber bundles

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32
Q

gingival inflammation follows course of

A

course of blood vessels

33
Q

gingival inflammation can enter maxillary sinus, leading to

A

[thickening of sinus membrane

34
Q

Bacterial plaque in a radius of ——m to bone will lead to resorption

Angular defects if interdental septum is ——

A

1.5-2.5mm

> 2.5mm wide (Tal)

35
Q

Bone Loss due to Periodontal Disease can be due to

A

Increased resorption in the presence of normal or increased bone formation.
• Decreased formation in the presence of normal resorption. • Increased resorption combined with decreased formation

36
Q

• Bone forms during periods of

A

remission

37
Q

Osseous surgery
Full thickness flap, —– positioned flap
• Regenerative surgery
Full thickness flap, ——- positioned flap

A

Apically

Coronally

38
Q

Osseous surgery
Generally —— incision but sometimes sulcular incision only (if keratinized tissue is limited)
Additional vertical incisions if needed to apically position

A

scallop

39
Q

Regenerative surgery ——- incision

Additional vertical incisions if needed to coronally position

A

Sulcular

40
Q

Reverse architecture

A

When the crest of the interdental bone or gingiva is located apical to its mid- facial and mid-lingual margins

41
Q

Reverse architecture is the opposite of

A

physiological architecture

42
Q

Osteoplasty

Reshaping of the alveolar process to achieve a more physiologic form without removing ————–

A

alveolar bone proper

43
Q

Class I crater :

A

2-3mm deep, thick facial and lingual walls. •

44
Q

Class I crater Manage by

A

palatal ramping

45
Q

Class II crater :

A

4-5 mm deep, thinner facial and lingual walls.

46
Q

Class II crater - Manage by

A

facial and palatal ramping

47
Q

• Class III crater :

A

6-7 mm deep, thin walls, sharp drop to base.

48
Q

Class III crater - Manage by

A

facial and palatal ramping

49
Q

• Class IV crater :

A

Variable depth, very thin walls.

50
Q

Class IV crater - Remove

A

both walls

51
Q

remove e-PFTE ——– weeks post op

A

4-6

52
Q

Functionally graded membranes

A

core, outer, inner layers for specific purpose

53
Q

Reinforce the membrane • Create a

A 
scaffold
• Using tenting screws
• Using fillers – Bone
– Bone substitutes
– Collagen sponge incorporated with growth factors
54
Q

• Osteogenesis –

A

Viable cells

55
Q

• Osteoinduction

–

A

Uncommitted CT cells induced

56
Q

• Osteoconduction

A

– Non viable scaffold

57
Q

Enamel Matrix Derivative (Emdogain®)

• Action:

A

formslayerofextracellularmatrixontheroot surface that promotes selective cell colonization (enhances mesenchymal cell adhesion and inhibits epithelial cell adhesion)

58
Q

Human Platelet-Derived Growth Factor in Tri-calcium Phosphate (GEM 21S ®)
• Action:

A

PDGF stimulates migration and proliferation of osteoblasts, fibroblasts and cementoblasts, leading to formation of new bone, PDL and cementum

59
Q

Max molars root concavities

A
  • Maxillary Molars

* 94% mesiobuccal roots • 31% distobuccal roots • 17% palatal roots

60
Q

Incidence of enamel pearls:

A

1.1% - 9.7%

61
Q

• Trauma from occlusion may cause inflammation and tissue destruction within the

A

interradicular area of a multirooted tooth

62
Q

Bone ramps into the furcation to

A

enhance plaque control

63
Q

Sequence of treatment at RSR

A
  • Endodontic treatment
  • Provisional restoration
  • RSR
  • Periodontal surgery
  • Final prosthetic restoration
64
Q

Tunneling

for grade—- furcation

A

III

65
Q

Hemisection for

A
  • Mandibular molars

* Grade III furcation

66
Q

For hemisection, • Soft tissue positioned

A

below level of pulp chamber

67
Q

Root Separation

• Root separation involves the

A

sectioning of the root complex and the maintenance of all roots

68
Q

GTR for furcation defects only doable for

A

grade II

69
Q

All subgingival margins should be placed within —— mm apical to the free gingival margin whenever possible.

A

1 to 2

70
Q

Lateral incisor gingival line should be —— more coronal than for central incisors and canines

A

0.5 mm

71
Q

• epithelial attachment (junctional epithelium) • connective tissue attachment

A

• gingival sulcus

72
Q

• From sound tooth structure to alveolar crest: (allowance to drop margin during prep):
– Textbook: general rule- at least

A

4 mm

73
Q

Internal (inverse) Bevel
– Scalloped (submarginal incisions) as if to ——-
– Removes tissue without ———–

A

raise a flap

exposing wound during healing

74
Q

Apically Positioned flap with Osseous Resection
• Performed when ———— is needed to establish a biologic width:
– Prevents ——- rebound
– Maintains integrity of ——–

A

osseous resection

gingival

attachment apparatus

75
Q

• Two options for lengthening clinical crown with osseous surgery:

A

– Submarginal (scalloped) incisions- if adequate keratinized tissue
– Sulcular incisions and apical positioning- if limited keratinized tissue

76
Q

After osseous resection and suturing, biologic width re-established: —– from gingival margin to bone

A

> 3 mm

77
Q

Time to wait after Crown lengthening for Restoration

• If correct procedure for crown lengthening was done, at least

A

6 weeks

78
Q

Management of mucogingival

problems

A
  • Subepithelialconnectivetissuegraft • Freegingivalgraft

* Vestibular extension

79
Q

Ridge Augmentation Procedures

METHODS:

A
  • Soft tissue augmentation only
  • Hard tissue augmentation only
  • Soft and hard tissue augmentations

Perio 2 exam 2 (5 decks)

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