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Perio E2 > Trauma > Flashcards

Trauma Flashcards

1
Q

Primary Occlusal Trauma

A

Excessive force

Normal periodontium

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2
Q

Secondary Occlusal Trauma

A

Normal or excessive forces

Applied to a weakened periodontium

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3
Q

Orthodontic occlusal trauma

A

Create forces on the periodontium that simulate occlusal trauma

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4
Q

Possible signs of clinical trauma

A 
Progressive tooth mobility 
Fire it is
Functional mobility
Pathologic migration 
Infrabony pockets 
Buttressing bone
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5
Q

Radiographic signs of traum may represent

A

Adaption

Some ay be due to extension of inflammatory periodical disease without occlusal trauma as a factor

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6
Q

Angular bone loss and furcation may be due to

A

Tooth and bony anatomy and the progression of inflammatory periodontal disease

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7
Q

Co-Destruction Theory

A

Occlusal trauma may be a co-destructive factor that alters the severity and pattern of inflammatory periodontal disease

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8
Q

Co-destruction: Periodontal disease may find a pathway into

A

The PDL

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9
Q

Advancing Plaque front Theory

A

Occlusal trauma has no role in the severity and pattern of inflammatory periodontal disease progression

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10
Q

In trauma from occlusion, rushing of tooth against bone causes injury

A

To the periodontal ligament at sites of pressure and tension

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11
Q

TFO without periodontitis

A

Injury results in acute inflammation

PDL collagen destruction

Cementum resorption
Bone loss

NO attachment loss

Adaption may occur tooth may become mobile but no further injury

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12
Q

Functional mobility

A

Tooth is in occlusion and as chew you can see tooth move

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13
Q

Tooth moving teeth

A

fremitis

Functional mobility

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14
Q

During periodontal disease teeth begin to shift

A

Pathologic migration

Due to weakened periodontium

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15
Q

Infrabony pockets

A

When the probe extends apical to the crest of bone

Inside pocket

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16
Q

Occlusal Trauma possible signs

A

Progressive tooth mobility
Teeth moving teeth
Pathologic migration
Infrabony pockets buttressing bone

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17
Q

Widened PDL will be usually seen in

A

Coronal 1/3

Apical 1/3

The tooth fulcrum is near middle and apical 1/3

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18
Q

trabecular hyperfunction

A

Buttressing bone

Build up more bone

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19
Q

Angular bone loss extends

A

Apical to crest of bone

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20
Q

Will there be attachment loss with TFO without periodontitis

A

NOPE

Adaption may occur; tooth may become mobile but no further injury

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21
Q

In injury spike in ______ and diminished ______

A

Spike in bone resorption and diminishing bone apposition

Followed by repair stage

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22
Q

TFO W/ periodontitis but no co-destruction

A

Supracrestal periodontitis with occlusal trauma lesions: INdependent processes

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23
Q

TFO W/ periodontitis what must be treated first

A

Periodontitis before occlusal adjustment

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24
Q

TFO w/periodontist and co-destruction

A

Subcrestal periodontis with TFO: Conditions are established for co-destruction

25
Q

Co-destruction occurs when

A

The periodontis merges with increased tooth mobility (trauma)

26
Q

TFO & periodontitis no co-destruction IF

A

TFO and inflammatory perio are separate

No attachment loss

27
Q

TFO & periodontitis co-destruction IF

A

With increasing mobility and inflammatory infilatre occur at same site

Downgrowth of pocket epithelium

Enhanced attachment loss

28
Q

Occlusal therapy reversible

A

Night guard
Extracoronal splints
Muscle relaxants
Muscle exercises

29
Q

Irreversible occlusal therapy

A

Intracoronal splints
Occlusal adjustment by selective grind
Orthodontics
Orthographic surgery

30
Q

Selective grinding indications

A 
Perio occlusal trauma
Post ortho
Prior to extensive restoration
Certain types of TMD
Certain wear patterns
31
Q

Contraindications to occlusal adjustment

A 
Severe malocclusion
Severe wear
Pain
No suitable end point
Non ideal but tolerated occlusion
32
Q

Occlusal trauma superimposed on an existing periodontist may

A

Accelerate attachment loss

33
Q

Occlusal trauma in the absence of periodontitis may be

A

Reversible and may results in adaptation (mobile but healthy)

34
Q

_____ must be present for attachment loss

A

Periodontitis (Inflammation)

35
Q

Weak evidence that occlusal trauma

A

Alters the progression of periodontitis

36
Q

Lack of evidence that periodontal occlusal trauma leads to

A

Gingival recession

37
Q

Occlusal trauma does not

A

Initiate periodontist

38
Q

Natural Teeth

A

PDL attachment apparatus

Can adapt to heavy forces

Tooth mobility as a physiological/pathological phenomena

39
Q

Dental Implants

A

Direct bone implant surface mechanical binding

Continuous bone remodeling at bone implant surface interface

Implant mobility as a path phenomena

40
Q

Primary Stability

A

Stability of the implant at the time of placement

41
Q

Primary stability based on

A

Bone density (cortical bone) (spongyeous bad)

Implant fixture design

42
Q

Healing at the interface

A

Bone formation and remodeling

43
Q

Mandible wait

A

3 months

44
Q

Maxilla wait

A

6 months

45
Q

What bone is better for implants

A

Cortical

46
Q

Functional Loading of the implant

A 
Immediate loading (at time of placement)
Early loading ( before conventional healing)
Late loading (3-6 months)
47
Q

Implants dont take ____forces well

A

Lateral forces

No cantilevers

48
Q

Detection in thickness of natural vs implant

A

20um thickness 1-2 g loading

50-100um 50-100 g

49
Q

Static forces

A

Constant forces applied as in orthodontic movement

50
Q

Functional forces

A

Expected intermittent multidirectional forces that would occur when a tooth is in normal function

51
Q

Excessive forces

A

Forces that well exceed those of teeth/implants in function

52
Q

Loading time depends on

A

Primary stability
Design
Restorative design
Prescient/absence of risk factors

53
Q

Functional load may

A

Increase bone to implant contact BUT 100% bone implant surface contact is not possible

54
Q

Average bone implant contact

A

60%

55
Q

Occlusal trauma is ______ etiologic all factor for periodontal disease but it can be ______ etiologic all factor for perimpalnt disease

A

Secondary

Primary

56
Q

How to deal with implants that are for bruxism patients

A

Longer and wider implants

Surrounded with thick bone support

57
Q

Lateral loads induced

A

High bone strain and implant stress than vertical loads

58
Q

Implant ______ is more critical than _______

A

Diameter

Length in reducing the bone stress

Perio E2 (9 decks)

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