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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 of 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 infrabony defects
  2. osseous ledges & tori
  3. furcation invasions (class I or shallow class II)
  4. cutting multirooted teeth to be single rooted
  5. inconsistent margins
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6
Q

Contraindications of osseous surgery include:

A
  1. maxillary anteriors (esthetics)
  2. three-wall 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 ostectomy but usually limited)
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9
Q

Alternative treatments to osseous surgery:

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. intrasulcular incisons
  3. mucoperiosteal flap resection
  4. root & defect debridement
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12
Q

What are some differinf techniques involved in 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 the soft tissue is placed 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 palatal 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 keratized tissue
  6. one root in 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 re-shaping 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. suprabony
  3. inconsistent margins
  4. other
24
Q

Osseous defect that is apical to the alveolar crest, within the bone, and considered more severe- classified into 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 suprabony defect, if the distance between the roots of the teeth is GREATER than or EQUAL to 2.5mm, the defect will be a _____ defect

A

Vertical

28
Q

In a suprabony 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 defects not categorized as infrabony, suprabony or inconsistent margins include:

A
  1. interradicular defects (furcations)
  2. dehiscence (missing bone, most common MB root of maxillary first molar)
  3. Fenestrations (windowing of bone)
31
Q

Dehiscences are ____ and most commonly occur ____

A

Missing bone; MB root of maxillary first molar

32
Q

Windowing bone:

A

Fenestrations

33
Q

Interradicular defects=

A

Furcations

34
Q

Defect classified by the number od walls remaining:

A

infrabony osseous defect

35
Q

Infrabony osseous defects are categorized by:

A

The number of walls remaining

36
Q

One wall defect:

A

hemiseptum

37
Q

Defect in which there is only one wall remaining:

A

one wall defect (hemiseptum)

38
Q

Disease starts interproximally underneath the contact point (leads to this defect):

A

Two wall

39
Q

What is the most common type of infrabony defect?

A

Two wall

40
Q

A “true” infrabony defect, “hole” that osseous graft materials does into:

A

Three wall

41
Q

A two wall defect is also called:

A

crater defect

42
Q

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

A

Three wall defect

43
Q

What type of defect is a contraindication for resection:

A

Three wall

44
Q

Considered both a INFRAbony and INTRAbony defect:

A

Three wall

45
Q

A ____ is considered a four wall defect

A

Implant (circumferential defect)

46
Q

Physiologic architecture of bone=

A

positive architecture

47
Q

Reverse architecture or inconsistent margins of bone (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 help 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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