5. Resective Osseous Surgery Flashcards

1
Q

What is the most predictable pocket reduction technique?

A

Osseous Surgery

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2
Q

Where is Osseous Surgery indicated?

A

Posterior Areas

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3
Q

What does osseous surgery improve, and at what expense?

A

Improve tissue contours for easier maintenance but at expense of some attachment loss

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4
Q

What is the interdental osseous form in the anterior, and how does it change in the posterior?

A

Thinner and more conical in anterior, which becomes flatter and broader in molar areas

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5
Q

What is an osteoplasty?

A

Removal of non-supporting bone

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6
Q

What is used for the elimination of circumferential defects?

A

Osteoplasty

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7
Q

What is an Ostectomy?

A

Removal of supporting bone

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8
Q

What is the treatment for reduction of hemi septum (1 or 2 wall defect, usually a molar)?

A

Ostectomy

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9
Q

What is the treatment for correction of reverse architecture?

A

Ostectomy

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10
Q

What is the tx for one-wall defects?

A

Osseous Resective Surgery

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11
Q

What is the tx for three-wall defects?

A

Regeneration (especially narrow defects)

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12
Q

What is the tx for two-wall defects?

A

Either method (resective or regenerative) depending on the depth, width and configuration

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13
Q

What does the biologic width include?

A

CT + JE = 2mm

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14
Q

What does the dentogingival junction include?

A

CT + JE + Sulcus

~ 3mm from crest of bone to gingival margin

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15
Q

What is the minimum distance coronal to the alveolar crest, necessary to permit healing and proper restoration fo the tooth?

A

3mm

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16
Q

What is the treatment of Type IA Altered Passive Eruption?

A

Gingivectomy

17
Q

What is the treatment of Type IB Altered Passive Eruption?

A

Osseous resection and gingivectomy

or

Osseous resection and scalloped inverse-bevel flap positioned to the CEJ

18
Q

What is the treatment of Type IIA Altered Passive Eruption?

A

Apical Positioned Flap

19
Q

What is the treatment of Type IIB Altered Passive Eruption?

A

Apical Positioned Flap with Osseous Recontouring

20
Q

Where is the osseous scallop the greatest?

A

Maxillary anterior teeth

avg. = 3.5 mm

21
Q

What is the ideal crown:root?

A

2:3

22
Q

What is an acceptable crown:root?

A

1:2

23
Q

What is the minimum crown:root?

A

1:1

24
Q

What is the most important RF for further loss of attachment?

A

Previous history of loss of attachement

25
Q

Is there and increased risk of root fracture with CAL?

A

yes

26
Q

What are the contraindications to orthodontic extrusion?

A

Short root length + Poor root form = inadequate crown:root following extrusion