2/7/17 GTR Utah

Question 1

What is the most common outcome of Scaling and root planing?

Answer 1

-Long junctional epithelium

Question 2

Is our goal to get repair or complete regeneration?

Answer 2

-Complete regeneration

Question 3

When doing guided tissue regeneration what do we want the connective tissue to do?

Answer 3

-Attach to the tooth surface

Question 4

What are the 4 separate compartments of connective tissue in the periodontium?

Answer 4

• The gingival corium (CT)
• Periodontal ligament
• Cementum
• Bone

Question 5

How quickly does the gingival epithelium grow?

Answer 5

-A few days

Question 6

T/F The lack of walls could be a possible reason that regeneration is not maximized

Answer 6

True

Question 7

T/F In a three wall infrabony defect you can get the blood clot controlled very well to have good regeneration.

Answer 7

True

Question 8

Does narrow or wide-mouth allow for a more stable blood clot for regeneration?

Answer 8

-Narrow

Question 9

Does shallow or deep defects allow for a more stable blood clot for predictable regeneration?

Answer 9

-Deep

Question 10

What is the ideal defect that allows for a stable blood clot for a predictable regeneration?

Answer 10

-Narrow and Deep

Question 11

What does cell occlusiveness mean?

Answer 11

-Prevent the epithelial cell down growth in a coronal direction

Question 12

What is the main non-absorbable membrane used?

Answer 12

-PTFE (Teflon)

Question 13

What happens with cells with the expanded PTFE?

Answer 13

-The cells can get into it

Question 14

T/F You can shape the titanium reinforced Gore-Tex non-absorbable membranes

Answer 14

True

Question 15

What were the first membranes approved for clinical use?

Answer 15

Non-absorbable barriers

Question 16

What was the first of the non-absorbable membranes?

Answer 16

• Teflon

- Gortex

Question 17

How long would you keep non-absorbable barriers in for as long as you can get primary intention closure?

Answer 17

9 months to a year

Question 18

T/F It is very critical when you go in during a second surgical procedure to remove a Teflon barrier that you get every little piece out

Answer 18

True

Question 19

T/F Bacteria can accumulate on the non-absorbable membranes if primary closure isn’t achieved leading to further problems

Answer 19

True

Question 20

What are four complications that have been noted with the use of non-absorbable membranes?

Answer 20

• Pain
• Purulence
• Swelling
• Tissue sloughing

Question 21

What was the biggest problems with the rubber dam non-absorbable membranes?

Answer 21

-People have latex allergies

Question 22

If the membrane collapses into the space where you want to have bone regeneration will it work?

Answer 22

-Not really if so it will be minimal

Question 23

Where do you want to make sure the membrane is tightly attached on the tooth?

Answer 23

-Coronally to the defect

Question 24

In the non-resorbable membrane it is important to do what to the edges of the membrane?

Answer 24

-Round the corners

Question 25

An advantage of what type of membrane is the ability to maintain separation of tissues over an extended period (if unexposed)?

Answer 25

-Non-resorbable

Question 26

When you covered up the membranes placed what type of closure do you want?

Answer 26

-Primary closure if possible

Question 27

What type of membrane is the gold-standard today?

Answer 27

-Absorbable membranes

Question 28

Which is more difficult to get bone growth in an area with teeth or an edentulous area?

Answer 28

-An area with tooth

Question 29

T/F absorbsable membranes can have sharp corners

Answer 29

True

Question 30

An advantage of what type of membrane is the elimination of a second surgical procedure for the membrane removal?

Answer 30

-Absorbable membranes

Question 31

What is the minimum amount of time that you want an absorbable membrane to be intact?

Answer 31

4 weeks

Question 32

T/F If the resorbable membrane is exposed because you couldn't achieve primary closure the degradation of the material is faster

Answer 32

True

Question 33

If a patient has moderate periodontitis and you place a resorbable barrier membrane for tissue regeneration is your outcome going to be good?

Answer 33

-No because you want the area to be as free from inflammation as possible

Question 34

What are synthetic absorbable devices are degraded how?

Answer 34

-Hydrolysis

Question 35

T/F Whenever you have hydrolysis it can lead to slight inflammation

Answer 35

True

Question 36

What type of resorbable membrane is a type I collagen derived from bovine?

Answer 36

-Biomend

Question 37

What type of resorbable membrane comes in a flowable formulation?

Answer 37

-Atrisorb

Question 38

What term describes any tissue or substance with the potential to induce growth or repair of bone?

Answer 38

-Osteogenic

Question 39

T/F A concern of allografts is getting a good bone source from a good bone bank

Answer 39

True

Question 40

What is the most common xenograft taken from?

Answer 40

-Bovine

Question 41

T/F If you are going to do bone grafting you need to place it in a dapendish that isn't used for anything else

Answer 41

True