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SP18: Perio MT1 > Trauma From Occlusion > Flashcards

Trauma From Occlusion Flashcards

1
Q

_________ trauma from occlusion is when there is occlusion on stable periodontium.

A

Primary

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2
Q

_________ occlusal trauma occurs when there is trauma on weakened periodontium.

A

Secondary

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3
Q

What are some reversible methods of occlusal therapy?

A
  1. Night guard
  2. Extracoronal splints
  3. Muscle relaxants
  4. Muscle exercises
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4
Q

What are some irreversible methods of occlusal therapy?

A
  1. Intracoronal splints
  2. Selective grinding
  3. Ortho
  4. Orthognathic surgery
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5
Q

It is extremely important to know the ____________ to occlusal adjustments.

A

Contraindications

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6
Q

What are the indications for selective grinding?

A
  1. Perio occlusal trauma
  2. Post-ortho (fine tuning)
  3. Prior to extensive restorations
  4. Certain types of TMD
  5. Certain wear patterns
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7
Q

What are some contraindications for selective grinding?

A
  1. Severe malocclusion
  2. Well tolerated occlusion
  3. Severe wear
  4. Pain
  5. No endpoint can be seen
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8
Q

What are the major three goals of occlusal adjustment?

A
  1. Occlusal stability over time
  2. Axial loading of forces
  3. Anterior guidance (smooth and unrestrained)
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9
Q

What is the difference between comprehensive and limited occlusal grinding?

A

Comp: creating centric relation and correct excursive movements

Limited: Eliminating lateral “jiggling” forces

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10
Q

T/F: Non-working (balancing) contacts are a goal of occlusal adjustment.

A

False

Want to get rid of non-working contacts

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11
Q

What characteristics are desired in working contacts?

A

Canine guided and smooth

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12
Q

T/F: Recontouring sharp/irregular incisal edges is part of comprehensive occlusal adjustment.

A

True

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13
Q

T/F: The inner inclines face the occlusal table.

A

True

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14
Q

What are some methods of jaw manipulation in centric relation?

A
  1. Chin grasp
  2. Bilateral mandibular manipulation
  3. Leaf gauge
  4. Patient determined
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15
Q

How do you find the patient determined centric relation?

A

Chair at sixty degrees, patient opens, places tongue on soft palate, closes into centric

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16
Q

What are the worst types of contact relationships?

A
  1. Cusp-cusp
  2. Incline-incline
  3. Cusp-embrasure
  4. Cusp-incline
17
Q

Centric relation interferences are often on the __________ maxillary inclines and the __________ mandibular inclines.

A

Mesial; distal

18
Q

If you have a premature contact in centric relation, working and non-working movements how should you resolve it?

A

Trim the maxillary cusp tip

19
Q

If there is a premature contact in centric relation but no contact in working/non-working movements how should it be resolved?

A

Deepen the fossa

20
Q

How do you resolve an incline-incline contact in CR causing lateral displacement?

A

Recontour both cusp inner inclines (not cusp tips)

21
Q

T/F: Holding cusp tips should be adjusted to achieve optimal occlusion.

A

False

Should adjust inclines, not tips

22
Q

T/F: It is appropriate to adjust the cusp when there is a cusp-embrasure relationship.

A

True

23
Q

What is the rule used to adjust non-working contacts?

A

PUBL

Adjust palatal upper inner incline and buccal lower inner incline

24
Q

What are the acceptable working-side contacts?

A

Canine guided is ideal

Group function is acceptable if posterior teeth are not compromised

25
Q

What is the rule for adjusting working contact interferences?

A

BULL

Adjust buccal cusp inner inclines and lower lingual inner inclines

26
Q

What is the purpose of a periodontal splint?

A
  1. Immobilize excessively mobile teeth (class II or III)

2. Stabilize teeth after ortho

27
Q

T/F: When splints are removed the, tooth which had previous mobility will have decreased mobility.

A

False

Splints don’t actually fix the mobility. They just stabilize it

28
Q

T/F: Extracoronal splints require tooth preparation.

A

False

Intracoronal require preparation

29
Q

Swing-lock partial dentures and bite-plane are considered ___________.

A

permanent extracoronal splints (no tooth preparation)

SP18: Perio MT1 (8 decks)

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