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Perio Surgery > Perio Wound Healing > Flashcards

Perio Wound Healing Flashcards

1
Q

Epithelium is replaced how often?

A

4-7 days.

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2
Q

Is tissue regeneration or repair more likely?

A

Repair

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3
Q

Formation of new cementum, PDL fibers, and alveolar bone.

A

Regeneration

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4
Q

Replacement tissues DO NOT REPLICATE the tissues that were lost.

May have an attachment with a long JE.

NO formation of new cementum, PDL, or alveolar bone.

A

Repair

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5
Q

As we get attachment loss, we also get loss of these.

A

Bone and cementum

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6
Q

Clean incision where edges are approximated with sutures.

A

Primary intention

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7
Q

Occurs on day 1 of primary intention.

A
  • Neutrophils
  • Epithelial cells
  • Angiogenesis starts
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8
Q

Day 3 of primary intention

A
  • Macrophages
  • Endothelial cells
  • Collagen fibers present
  • Granulation tissue starts
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9
Q

Day 5 of primary intention

A
  • Collagen bridge forms
  • Angiogenesis peaks
  • Granulation tissue fills the incisional space
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10
Q

Increase in fibroblasts and collagen accumulation in this part of primary intention.

A

Week 2

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11
Q

Point of Primary intention:

  • Intact epithelium.
  • Absence of inflammation
  • Tissue is still remodeling
A

1 month

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12
Q

Wound edges are not approximated, causing a large tissue defect.

A

Secondary intention

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13
Q

Greater inflammatory rxn, more granulation tissue, more fibrin and necrotic debris must be removed.

A

Secondary intention

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14
Q

Scar formation with contraction (does not occur with the attached gingiva bc it’s so close to the bone).

A

Secondary intention

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15
Q

Intentional removal of the pocket epithelium.

A

Curettage

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16
Q

Formation of a new epithelial lining along the sulcular wall with a resolution of inflammation.

A

Healing

17
Q

Excision of the unattached gingiva.

A

Gingivectomy

18
Q

The epithelium in this surgical procedure is derived from wound margins and migrate over the wound area.

A

Secondary intention

19
Q

Keratinized or connective tissue is transplanted from a donor site to a prepared recipient site.

A

Gingival graft

20
Q

Blood supply of a graft

A

Comes from the recipient site (“plasmotic circulation”)

21
Q

By what day does the blood supply from the recipient site anastomose to the gingival graft?

A

Day 4

22
Q

These are used to increase the width of the keratinized gingiva.

A

Gingival grafts

23
Q

Vascular supply is completely severed from the donor tissue and must be nourished by diffusion from the vessels of the underlying tissue to survive.

A

Gingival graft

24
Q

Neovasculature in a graft is fairly extensive by _____.

A

one week

25
Q

Excisions made close to bone do not _____.

A

Contract

26
Q

Types of inverse bevel incisions.

A

Crevicular
Marginal
Submarginal

27
Q

Inverse bevel incision is AKA?

A

Reverse bevel

28
Q

Risk of periosteum with a full thickness flap?

A

Get bone resorption.

Less likely with a split thickness flap.

29
Q

Flap that retains periosteum on the bone.

A

Split thickness

30
Q

When does initial surface resorption of bone take place when bone is exposed?

A

10 days

31
Q

How does bone thickness affect resorption?

A

Thin bone resorbs more

32
Q

When is the clot between the flap and bone resorbed?

What replaces the clot?

A

1 week

CT attachment

33
Q

Repair and regeneration from a flap surgery is complete by what time?

A

3 months

34
Q

New cementum, CT attachment, and alveolar bone is formed by what?

A

PDL cells

35
Q

Regenerative cells of the periodontium.

A

PDL cells

36
Q

How does the epithelium respond in wound healing?

A

Quickly migrates along the root surface and prevents CT attachment, so we get a long JE.

37
Q

This tends to produce osseous resorption and cannot form a new CT attachment to root surfaces previously periodontally involved.

A

Gingival CT

38
Q

Bone’s histologic response.

A

Ankylosis and root resorption

39
Q

Can produce a new CT attachment on root surfaces with previous attachment loss.

A

Periodontal ligament

Perio Surgery (13 decks)

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