6 - Trauma from Occlusion Flashcards
1
Q
- 6 From below, choose the parts of periodontium affected by occlusal forces
- Alveolar bone proper
- Cementum
- Gingiva
- Junctional epithelium
- PDL
A
Affected: Alveolar bone proper, cementum, PDL
Not affected: Gingiva and Junctional epithelium
2
Q
- 7 Occlusal trauma clinical symptoms
- ___ (mobility/immobility) of affected teeth
- Radiographic evidence of __ (thick/thin) PDL
- __ (Positive/negative) Hx of clenching or bruxism
- Missing or tilted ___
A
- Mobility
- Thick
- Positive
- Teeth
3
Q
- 7 Occlusal trauma clinical symptoms
- Evidence of ___ (working/non-working) occlusal interference
- Evidence of (balancing/non-balancing) occlusal interference
A
- Working
2. Balancing
4
Q
- 7 Occlusal trauma clinical symptoms
- Evidence of occlusal (interference/slide) in centric relation or centric occlusion
- Evidence of occlusal interference in __ (retrusive/protrusive) mandibular movement
A
- Slide
2. Protrusive
5
Q
6.10 What is the name for a tremulous vibratory movement of a tooth when teeth come into __ contact? Generally detected by ___ palpation.
A
- Fremitus
- Functional
- Finger
Fremitus is a sign of occlusal trauma
6
Q
- 12 Compression side occlusal trauma
- Compression of PDL fibers with initial ___ (increase/decrease) in width of PDL space
- Loss of fiber ___
- Rupture of capillaries and hemorrhage into PDL ___ spaces
- ___ (deposition/resorption) of alveolar bone proper followed by widening of PDL space
- If severe, ___ may occur
A
- Decrease
- Orientation
- perivascular
- Resorption
- Root resorption
On compression side, you will observe bone surface resorption an PDL compaction
7
Q
- 14 Tension side occlusal trauma
- Tension (stretching) of fibers with initial ___ (decrease/increase) in PDL space
- Rupture of PDL ___ ___
- ___ of PDL capillaries and hemorrhage into PDL perivascular spaces
- Apposition of new ___ followed by ___ (increase/decrease) in PDL space
- Tearing of ___
A
- Increase
- Bundle fibers
- Compression
- Alveolar bone proper; decrease
- Cementum
8
Q
- 16 Primary occlusal trauma
- Occurs when occlusal forces are excessive and amount of alveolar bone support is ___ (decreased/increased/normal)
A
- Normal
9
Q
- 19 Secondary occlusal trauma
- Occurs when occlusal forces are ___ (normal/excessive) and amount of alveolar bone support is (increased/reduced/normal)
A
- Excessive
2. Reduced
10
Q
- 22 Occlusal hyperfunction
- What increases in regards to PDL?
- What increases in regards to alveolar bone proper?
A
- Number and diameter of collagen bundle fibers and overall width of PDL increases
- Density and thickness of alveolar bone proper increases
11
Q
- 22 Occlusal hyperfunction
- Radiographic evidence of what in alveolar bone?
- ___ (apparent/undetectable) tooth mobility
A
- Osteosclerosis of alveolar bone with PDL insertions
2. Undetectable
12
Q
- 23 Occlusal hypofunction
- How must this be diagnosed?
- ___ (increase/decrease) in PDL fiber bundles, but normal orientation
- ___ (increase/decrease) in physiologic turnover and remodeling of alveolar bone
- ___ (widening/narrowing) of PDL space
- ___ (increase/decrease/normal) tooth mobility
A
- Histology
- Decrease
- Decrease
- Narrowing
- Normal
13
Q
- 25 Disuse atrophy
- ___ (increase/decrease/normal) tooth mobility
- Absence of ___ antagonist
- Radiographic evidence of ___ (increase/decrease) width of PDL space
A
- Increased
- Occlusal
- Decrease
14
Q
- 29 Occlusal Trauma and Perio Disease study (Polson)
- If one suffers from bone loss due to periodontitis in the presence of occlusal trauma, how can remarkable, but not complete, regeneration of bone be accomplished?
A
Removal (treatment) of both periodontitis and the occlusal trauma
15
Q
- 31 Occlusal Trauma and Perio Disease study (Nunn)
- Indication of a strong association between initial and untreated occlusal discrepancies with ___ (increase/decrease) of perio probing depth.
- Occlusal treatment significantly ___ (increases/reduces) the progression of perio disease over time.
A
- Increase
2. Reduces
