2/7/17 "Random Facts" Osseous defects Starts at slide #51

Question 1

When you have healthy (soft) tissue what will the contour follow?

Answer 1

-Hard tissue (Bone)

Question 2

What three areas do you have to recreate to form the biological width?

Answer 2

• Gingival sulcus
• Junctional epithelium
• Fiber attachment

Question 3

In individuals that don’t have very distinct CEJs what happens with the margins of the gingiva?

Answer 3

-They follow more of the tooth than the CEJ

Question 4

When you take down the soft tissue below the CEJ what will the contour of the tissue follow?

Answer 4

-The root

Question 5

What direction is the contour of the CEJ usually pointing?

Answer 5

-Coronally

Question 6

If the bone is dropped down 5 or 6 mm what is the biologic width after surgery?

Answer 6

-0 probing depth

Question 7

If the bone is dropped down 5 or 6 mm what is the biologic width after healing?

Answer 7

-The biologic width is re established

Question 8

Immediately after implant placement what is the probing depth?

Answer 8

-0

Question 9

What is the primary indication for removing bone for osseous resection?

Answer 9

-If a person has a shallow infrabony defect (1-2 mm deep)

Question 10

In an area where you have flat or reverse architecture what is that an indication for?

Answer 10

-Osseous resection

Question 11

If you are trying to get rid of inter tooth craters and to get the tissue to drop down properly what will you do?

Answer 11

-Remove the exostoses

Question 12

Who are exostoses commonly found in?

Answer 12

• People who brux

- Can also be genetic

Question 13

What is the purpose of recontouring the bone after root resection?

Answer 13

-To allow the individual to have good oral health

Question 14

Why do you want to contour the bone is an osseous resection surgery?

Answer 14

-To allow the tissue to heal properly

Question 15

If you don’t remove the bone around a furcation why is that a problem?

Answer 15

-It makes it so the individual will have a difficult time cleaning in the furcation

Question 16

When you are talking about doing crown lengthening procedures in the anterior teeth what is a concern you might have?

Answer 16

-Esthetics

Question 17

When we have isolated deep pockets what is one of our options?

Answer 17

-To do guided bone regeneration

Question 18

If you have advanced periodontitis what are you worried about when doing an osseous resection?

Answer 18

-Removing to much bone that you get rid of the supporting bone

Question 19

If you have an isolated deep pocket should you take away bone?

Answer 19

-No

Question 20

If you are doing an osseous resection surgery in the maxillary pre-molars or molars what should you be worried about?

Answer 20

-Hitting the maxillary sinus

Question 21

If a person has a high caries index what is the problem if you take away bone in and osseous resection surgery?

Answer 21

-You could create more area for caries to develop

Question 22

If a person has uncontrolled diabetes and you take away bone what is the problem?

Answer 22

-The patient has delayed healing

Question 23

If a person is on bisphosphonates what is the problem if you take away bone?

Answer 23

-You could create osteonecrosis

Question 24

When you use rotary instruments what is the most critical thing we do?

Answer 24

-Use copeus irrigation

Question 25

What are instruments we use in osseous resective surgery?

Answer 25

Carbide bur

• Diamond bur
• Ronsours? (clip on the bone)
• Files (in interproximal areas)
• Hoes (trying to collect bone for otogenous bone regeneration)
• Chisel

Question 26

When you are trying to get the proper contours of bone what type of instruments do you use?

Answer 26

-Hand instruments

Question 27

T/F A full thickness flap reflects the gingiva off of the bone

Answer 27

True

Question 28

When you are using a basic flap technique and using local anesthesia what is important?

Answer 28

-That we get both the facial and lingual sides

Question 29

T/F Sometimes when you use a basic flap approach it can be coronally but most times it is apically positioned

Answer 29

True

Question 30

If you don’t get rid of the granulation tissue what happens to the tissue after surgery?

Answer 30

• It doesn’t heal as good

- You may have high inflammation after surgery

Question 31

When you do vertical grooving in an osseous resection surgery what do you use?

Answer 31

-Bur

Question 32

When you do vertical grooving what is the goal?

Answer 32

-To provide good contouring of the bone

Question 33

If the base of the interproximal crater is only 1-2 mm deep what can you consider doing?

Answer 33

-Ossectomy

Question 34

If the base of the interproximal crater is deeper than 1-2 mm what might you do?

Answer 34

-Try to regenerate the bone

Question 35

What is the goal of radicular blending?

Answer 35

-To get rid of the Crater walls

Question 36

Where do you want to remove widow’s peaks at?

Answer 36

Line angles

Question 37

How high should the tissue be over the bone height?

Answer 37

-1-2 mm

Question 38

If you have a bony crater and take away just the lingual wall and leave the buccal wall when Guided tissue regeneration is not an option what happens?

Answer 38

-The tissue height is higher on the buccal and then follow the bone down towards the lingual (so it doesn’t look so obvious on an estethic area)

Question 39

If you take away to much bone on the facial on the maxillary molars what is a problem that can occur?

Answer 39

-Expose the furcation of the roots

Question 40

If we take away just palatal bone (lingual) bone on the maxillary molars instead of buccal bone what is the advantage?

Answer 40

-You won’t expose the furcation of the roots

Question 41

Why do you want the deepest point of most interdental osseous defects positioned lingually?

Answer 41

• Helps with draping

- Helps with cleaning

Question 42

When you do a guided tissue regeneration procedure how long do you have to wait for your results?

Answer 42

-Months and months

Question 43

T/F If you have the option to leave bone to not expose the furcation versus removing the bone to get a better scallop you will usually opt to leave the bone.

Answer 43

True