1/31/17 Principles of Osseous Resective Surgery

Question 1

What is an osseous defect?

Answer 1

-Bony deformities are not uniform: often a combination of horizontal and vertical bone loss

Question 2

What does an osseous deformity result from?

Answer 2

-Periodontal disease

Question 3

T/F

Presence of osseous defects itself is a sign of active disease

Answer 3

False

-It is not a sign of active disease

Question 4

What are two ways to diagnosis or evaluate osseous defects?

Answer 4

• Radiographs

- Probing

Question 5

What can radiographs revel the existence of in terms of bone loss?

Answer 5

-Angular bone losses in the inter proximal space

Question 6

What does transgingival probing give us an idea of?

Answer 6

-Indicates the vertical and horizontal bone loss

Question 7

What are the three classifications of osseous bone defects?

Answer 7

• Three wall infrabony defects
• Two wall infrabony defects
• one wall infrabony defects

Question 8

What is a three wall infrabony defect?

Answer 8

• located in the interdental region

- Facial, proximal and lingual walls

Question 9

What is a 3 wall defect that wraps around the tooth involving two or more contiuous root surfaces called?

Answer 9

-Circumferential defects

Question 10

What is the most predictable defect that you can regenerate?

Answer 10

-Deep and Narrow

Question 11

What do you see in two-wall infrabony defects?

Answer 11

• Interdental craters

- Two-wall hemiseptum

Question 12

What is the most common bony defect?

Answer 12

-Interdental craters

Question 13

What is a two-wall hemiseptum?

Answer 13

• 1/2 of interdental septum

- Lingual and proximal wall or facial and proximal wall

Question 14

T/F When performing surgery you want to get rid of as much inflammation as possible

Answer 14

True

Question 15

What are two types of osseous surgeries?

Answer 15

• Additive osseous surgery (Regenerative)

- Subtractive osseous surgery (Resective)

Question 16

What are the five therapeutic choices for osseous defects?

Answer 16

• Osseous recontouring
• Induce regeneration of bone
• Root resection with osseous resection
• Maintenance of the pockets associated with osseous defects
• Tooth extraction

Question 17

What refers to reshaping the bone without removing tooth supporting bone?

Answer 17

-Osteoplasty

Question 18

What includes the removal of tooth supporting bone?

Answer 18

-Ostectomy

Question 19

What is the objective of osseous resecting in reshaping?

Answer 19

-Reshape the marginal bone to resemble the alveolar process

Question 20

What is the objectives of osseous resection when you try to create bony contours?

Answer 20

-Make them parallel with gingival contours after healing with shallow crevice depths and make them cleansable

Question 21

What does osseous resection permit for wound closure?

Answer 21

-Makes it easier by thinning bone and allowing better flap approximation

Question 22

T/F You don’t want negative architecture

Answer 22

True