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Flashcards in Osseous Defects Deck (18)
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1

A bony deformity that is not uniform often involving horizontal and vertical bone loss is called what?

An osseous defect

*Involving 1 or more teeth. not necessarily a sign of disease

2

Transgingival proving (bone sounding) gives you topographic information about a bony defect in what two directions?

-Vertical and horizontal

3

What are the three intrabony defects?

1-Three-wall (retains things well, best outcome)
2-Two-wall
3-One-wall (hard to retain anything, poor outcome)

4

A three-wall infrabony defect that wraps around the two involving two or more contiguous root surfaces is called what?

Circumferential defect

5

What are 4 additional designations for Three-wall infra bony defects?

1-Narrow (holds clot better but is harder to clean)
2-Wide-mouth (Better access but unstable clot)
3-Shallow (poor clot retention)
4-Deep (Better retention, typically better outcomes)

6

Interdental craters and two-wall semi-septum are both types of what infrabony defect?

Two-wall

*most common type are interdental craters

7

Which type of infra bony defect is most difficult?

One-wall infra bony defects

*Usually ends up being just an extraction since predictability is poor and cost is high

8

What are the two types of osseous surgeries?

1-Subtractive osseous surgery (resective)
2-Additive osseous surgery (regenerative)

9

The reshaping of bone without removing tooth supporting bone is called what?

Osteoplasty

10

The Removal of tooth supporting bone is called what?

Ostectomy

11

What two types of architecture should be considered when reshaping the marginal bone to resemble normal alveolar bone?

-Positive architecture
-Negative architecture

12

What can make primary wound closure easier in osseous procedures?

Thinning the bone to allow flap approximation

13

What 3 things determine the degree of scalloping around teeth?

1-Cemento-enamel junction
2-Convexity of the teeth
3-Tooth position in alveolar bone

14

What are 6 reasons to not do osseous resection?

1-Esthetics areas
2-Isolated deep pockets
3-Advanced periodontitis
4-Anatomic factors (flat palate, proximity to sinus, ramus or oblique ridge)
5-High caries risk
6-Serious systemic conditions

15

Which procedure reduces thickness of the alveolar housing and provides relative prominence to the radicular aspect of the tooth?

Vertical grooving

16

Which procedure attempts to graduals the bone over the entire radicular surface and a smooth surface for good flap adaption?

Radicular blending

17

What does gradualizing marginal bone do?

Provides a sound, regular base for gingival tissue to follow

18

What feature, if left behind, allows tissue to rise to a higher level than the base of the bone loss in interdental areas?

"Widows Peaks" or discrepancies on the gingival line angle