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Perio II > Osseous Surgery: Resection- Review > Flashcards

Osseous Surgery: Resection- Review Flashcards

1
Q

Osseous surgery may be ____ or ___.

A

Resective or regenerative

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2
Q

Osseous surgery in which we are subtracting or taking away bone:

A

Resective procedure

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3
Q

Osseous surgery in which we are adding bone:

A

Regenerative procedure

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4
Q

What is the rationale behind osseous surgeries?

A

a reduced probing depth will both increase the effectiveness or the oral hygiene by the patient and facilitate the ease of maintenance by the therapist

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5
Q

Indications of osseous surgery include:

A
  1. shallow infra bony defects
  2. osseous ledges and tori
  3. furcation invasions (class I or shallow class II)
  4. cutting multi-rooted teeth to be single rooted
  5. inconsistent margins
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6
Q

Contraindications of osseous surgery:

A
  1. maxillary anteriors (esthetics)
  2. three walled defects (want to regenerate these areas if possible)
  3. isolated deep defects
  4. generalized advanced bone loss
  5. high caries rate
  6. dentinal sensitivity
  7. local anatomic factors
  8. poor plaque control
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7
Q

Advantages of osseous surgery:

A
  1. predictable
  2. one-step
  3. single site
  4. minimal healing time
  5. ease of post-op maintenance
  6. improved contours for better flap adaptation
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8
Q

Disadvantages of osseous surgery:

A
  1. root sensitivity
  2. esthetics
  3. defect dependent
  4. loss of attachment (by osteotomy but usually limited)
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9
Q

Alternative treatments to osseous surgery include:

A
  1. regenerative procedures
  2. root amputation or hemisection
  3. non-surgical therapy
  4. extraction
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10
Q

Resective surgery technique depends on:

A
  1. anatomic factors
  2. gingival contours
  3. bone thickness & contour
  4. dentition
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11
Q

Steps of resective surgery:

A
  1. bone sounding
  2. instrsulcular incisions
  3. mucoperiosteal flap reflection
  4. root and defect debridement
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12
Q

What are some differing techniques with resection?

A
  1. vertical interproximal grooving
  2. reduction of marginal radicular bone
  3. elimination of lips of craters
  4. removal of “widows peaks”
  5. removal of marginal radicular bone
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13
Q

With closure during resection, the tissue placement can be done at the ____ or ____.

A

AT THE alveolar crest or CORONAL to the alveolar crest

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14
Q

If the soft tissue is placed AT the alveolar crest during closure:

A

pocket elimination

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15
Q

If soft tissue is place CORONAL to the alveolar crest during closure:

A

pocket reduction

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16
Q

Between the palatal and lingual approach of osseous surgery, the ____ approach is more common:

A

palatal

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17
Q

The palatal approach of osseous surgery is used for:

A

maxillary surgery

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18
Q

The palatial approach of osseous surgery is used for maxillary surgery due to:

A
  1. furcations more apical
  2. wider embrasures
  3. defects commonly seen on palatal
  4. more cancellous bone
  5. all keratinized tissue
  6. one root on palatal (vs. two on buccal)
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19
Q

The lingual approach of osseous surgery is used for:

A

mandibular surgery

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20
Q

The lingual approach of osseous surgery is used for mandibular surgery due to:

A
  1. furcations more apical
  2. wider embrasures
  3. defects commonly seen on lingual
  4. axial inclination of molars
  5. avoids external oblique ridge
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21
Q

The reshaping of bone to achieve a more physiologic form without removal of alveolar bone proper:

A

osteoPLASTY

22
Q

The removal of alveolar bone proper (supporting bone)

A

ostectomy

23
Q

Osseous defect classifications include:

A
  1. infrabony
  2. supra bony
  3. inconsistent margins
  4. other
24
Q

Osseous defect that is apical to the, within the bone, and considered more severe. Characterized by one, two or three-walled

A

infrabony

25
Q

Osseous defect that is CORONAL to the alveolar crest, may be vertical or horizontal:

A

suprabony

26
Q

Infrabony osseous defects are classified as:

Suprabony osseous defects are classified as:

A

Infra= one, two, or three-walled

Supra= horizontal or vertical

27
Q

In a supra bony defect, if the distance between the roots of the teeth is GREATER or EQUAL TO 2.5mm, then the defect will be a ____ defect

A

vertical

28
Q

In as supra bony defect, if the distance between the roots of the teeth is LESS THAN 2.5mm, then the defect will be a ____ defect

A

horizontal

29
Q

Defect in which the interdental crestal bone is located apical to the level of the radicular bone resulting in a NEGATIVE architecture:

A

Inconsistent margins

30
Q

Other osseous defect not categorized as infra bony, supra bony, or inconsistent margins include:

A
  1. interradibular defects (furcations)
  2. dehiscence (missing bone, most commonly MB root of max 1st molar)
  3. fenestrations (windowing of bone)
31
Q

Dehiscence are _____ and they most commonly occur ____.

A

missing bone, MB root of maxillary 1st molar

32
Q

Windowing of bone=

A

fenestrations

33
Q

Interradicular defects =

A

furcations

34
Q

Defects classified by the number of walls remaining:

A

infra bony osseous defect

35
Q

Infrabony osseous defects are categorized by the number of walls:

A

remianing

36
Q

One wall defect:

A

hemiseptum

37
Q

Defect in which there is only one wall remaining:

A

one wall defect (aka hemiseptum)

38
Q

Disease starts inter proximally underneath the contact point (leads to this type of defect):

A

two wall defect

39
Q

What is the most common type of infra bony defect?

A

two wall defect

40
Q

A “true” infra bony defect, “hole” that osseous graft material goes into:

A

Three wall defect

41
Q

A two wall defect is also called a:

A

crater

42
Q

Type of defect In which we have the best chance of success for regeneration/graft:

A

three wall

43
Q

What type of defect is a contraindication for resection?

A

3 wall

44
Q

Considrered both an INFRAbony and INTRAbony defect:

A

three wall

45
Q

A _____ is considered a four-walled defect

A

implant (circumferential defect)

46
Q

Physiologic architecture of bone:

A

positive architecture

47
Q

Reversed architecture or inconsistent margins (interdental crestal bone located apical to the level of radicular bone)

A

negative architecture

48
Q

Interdental crestal bone located APICAL to the level of radicular bone

A

negative architecture

49
Q

Type of architecture that tends to be done by dental providers to maintain various factors:

A

flat architecture

50
Q

List the determinants of gingival contour:

A
  1. Interdental space
  2. Position of tooth in arch
  3. Root shape
  4. Crown shape
51
Q

T/F: The determinant of gingival contour is NOT necessarily underlying bone

A

true

52
Q
A

Perio II (12 decks)

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