Brainscape's Knowledge GenomeTM

Browse over 1 million classes created by top students, professors, publishers, and experts.


See full index

Perio > GTR > Flashcards

GTR Flashcards

1
Q

GTR requires a regeneration of what tissues to be successful?

A

cementum, PDL, alveolar bone in a previously diseased site.

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
2
Q

What must you do before GTR?

A

STOP perio dz

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
3
Q

Is GTR a treatment for perio dz?

A

NO - it just regenerates the defective tissue caused by perio dz

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
4
Q

Define Repair:

A

wound healing by tissue that does not fully restore the architecture of the diseased part

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
5
Q

Define Reattachment:

A

reunion of epithelial and CT w root surface and bone

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
6
Q

Define New attachment:

A

union of CT or epi w the root that has been deprived of its original perio attachment.

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
7
Q

How might something obtain new attachment?

A

epithelial adhesion, CT adaptation, or attachment and new cementum formation

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
8
Q

Define bone fill:

A

reformation of all/part of bone in perio defect bc of tx. Independent of soft tissue healing, CT attachment or perio regeneration.

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
9
Q

Biological objectives (3):

A
  1. regenerate PDL
  2. New cementum growth on denuded root
  3. New bone within defect
How well did you know this?
1
Not at all
2
3
4
5
Perfectly
10
Q

Clinical objectives of perio work:

A
  1. reduce/eliminate pockets
  2. Inc attachment
  3. Improve prognosis for tooth/dentition
  4. create potential abutment
How well did you know this?
1
Not at all
2
3
4
5
Perfectly
11
Q

What are the 4 types of cells that may repopulate a perio wound after surgery?

A
  1. Epithelial cells
  2. Cells from gingival connective tissue
  3. Bone cells
  4. Periodontal ligament (PDL) cells
How well did you know this?
1
Not at all
2
3
4
5
Perfectly
12
Q

What cells are the fastest to migrate?

A

Epithelial cells - .5mm/day. Bc the epi is so fast, it prevents CT attachment and epi will attach if there is plaque control.

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
13
Q

In order to achieve PDL regeneration, what must be prevented?

A

other cells must be prevented from populating the root surface so that PDL cells can proliferate.

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
14
Q

So, knowing that PDL cells must predominate; how is regeneration achieved?

A

Placing a membrane to create a space bt the root and barrier. Membrane stabilizes blood clot and permits the PDL cells to dominate the healing (by preventing downgroth of epi cells).

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
15
Q

What is the only way o definitively prove regeneration?

A

histology

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
16
Q

What is regeneration good for? (5)

A
  1. 3 wall defects or 2/3 walled combo defects
  2. CII furcations
  3. CIII furcations (~25%)
  4. Circumferential defects
  5. Recession areas
17
Q

Contraindications for regeneration? (5)

A
  1. systemic dz, endocarditis pts
  2. horizontal defects
  3. Hopeless defects
  4. compromised success due to technical error
  5. smoking ???
18
Q

What is needed for a successful regeneration case? (3)`

A
  1. patient enthusiasm
  2. successful OH phase
  3. case assessment
19
Q

7 steps for GTR

A
  1. Reflect mucoperiosteal flap
  2. preserve as much interdental papillae
  3. Excise ALL pocket epithelium
  4. Thorough debridement of root surfaces
  5. Select membrane type ( see below) and configuration most suited to defect
  6. Trim so that membrane will adapt to tooth and overlaps bone margins by 2-3mm. Suture and maintain position.
  7. Suture flap to attempt primary closure.
20
Q

Post-op after GTR?

A

OHI w/ gentle soft brush + CHX rinse + Antibiotics?? + NSAIDS ??

21
Q

When are sutures removed?

A

7-10 days

22
Q

When should non-resorbable membrane be removed?

A

6-8 weeks

23
Q

If membrane is exposed at 1 weeks review, what do you do?

A

see the patient weekly

24
Q

What to do with infection?

A

Use antibiotics

25
Q

The results will depend on what factors?

A

plaque control, surgical technique, smoking

26
Q

Examples of nonresorbable membranes?

A

Gore-Tex, ePTFE, Cytoplast

27
Q

Examples of resorbable membranes?

A

Biomend collagen; Bio-Gide porcine collagen; CpoiOs bovine pericardium; Bioexclude human amnion-chorion

28
Q

When would GTR be used with implants?

A
  1. Augment bone before implant
  2. Inc/control bone architecture at placement
  3. save failing implant
29
Q

What does emdogain do?

A

enamel matrix proteins - induces formation of new cementum, PDL, alveolar bone

30
Q

What does PRP do?

A

concentrated autogenous plasma - proveds cocktail of growth factors

Perio (5 decks)

Brainscape helps you reach your goals faster, through stronger study habits.
© 2024 Bold Learning Solutions. Terms and Conditions