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D3 Ortho Final > Multidisciplinary Ortho (Gardner) > Flashcards

Multidisciplinary Ortho (Gardner) Flashcards

1
Q

How much will alveolar ridge shrink in the first six months after tooth extraction?

A

23%

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2
Q

What gets thick behind moving teeth?

A

Lamellar bone

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3
Q

What is the term for erupting a tooth orthodontically, bringing bone with it?

A

Forced eruption

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4
Q

What 3 things can forced eruption improve?

A
  1. Reduce recession and periodontal pockets
  2. Improve esthetics
  3. Improve crown to root ratio
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5
Q

What is a consideration when you are thinking about moving a mandibular molar medially into an edentulous area?

A

Ensure you don’t leave a maxillary molar unopposed

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6
Q

What can be done orthodontically then prosthetically to improve gingival esthetics and then improve the crown to root ratio?

A

Extrude the tooth orthodontically to bring bone and gingiva with it, then reduce and crown it to get improved crown to root ratio

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7
Q

How long does it take to extrude a tooth and then how long must it be retained for?

A

6 months to extrude, then retain it through one sigmoid (one bone cycle)

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8
Q

What is a consideration for ortho when the restorative plan involves implants?

A

Move roots to allow a path for implant placement

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9
Q

What is the best thing to hold a space if the patient is still growing and ortho is complete?

A

Bridge / Maryland Bridge (resin-bonded FPD)

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10
Q

Why will an implant not move with ortho?

A

It osseointegrates

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11
Q

Why are gummy smiles difficult to diagnose?

A

Can be caused by skeletal, gingival, or short crown height.

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12
Q

What is key to find before treating a gummy smile?

A

The CEJ to determine the etiology of the gummy smile

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13
Q

What are some methods to correct a gummy smile after finding the CEJ and diagnosing the cause?

A
  1. Gingivoplasty
  2. Orthodontics
  3. Orthognathic surgery
  4. Prosthodontics
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14
Q

When should a frenectomy be done: before or after space closure?

A

After. Constriction tissue will help keep space closed

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15
Q

What is required after space closure (maxillary diastema)?

A

Permanent retention

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16
Q

The gingival margins of the maxillary teeth should follow what?

A

The upper lip

17
Q

Incisal edges of maxillary teeth should follow what?

A

The lower lip

18
Q

How should the teeth appear as the dentition is viewed from the front?

A

Teeth should be 1/3 smaller as you go posterior (Smile Arc)

19
Q

If one tooth is missing, what should you try to match when replacing it?

A

Contralateral side

20
Q

If both maxillary laterals are missing, how wide should the replacement teeth be?

A

2/3 the width of the central incisors

21
Q

What is the term for spaces between the teeth that are apparent even when the teeth are touching?

A

Black triangles

22
Q

Black triangles are always related to what?

A

Tooth contact point and its distance to the bone

23
Q

When the contact point is within how many mm of bone will there be black triangles?

A

Within 5mm

24
Q

If the contact point to bone is 6mm, what is the percentage that will have dark triangles?

A

44%

25
Q

If the contact point to bone is 7mm, what is the percentage that will have dark triangles?

A

63%

26
Q

What are 3 ways to eliminate black triangles?

A
  1. Converge roots
  2. Change the shape of teeth
  3. Change the width of teeth
27
Q

If a tooth is to be built up using bonding or veneers, should the restorative dentist ask the orthodontist to provide overjet or eliminate overjet?

A

Eliminate overjet

28
Q

Patient should first see the orthodontist at what age?

A

7 years old

29
Q

If a primary second molar is lost early, what is indicated?

A

Space maintenance (LLHA, band and loop, Nance)

30
Q

If a primary first molar is lost early what is indicated?

A

No treatment

31
Q

What can be done to an ankylosed 2nd permanent molar if there is no successor?

A

Reduce it mesiodistally (because it is wider than the premolar that was to replace it) then build up with composite

32
Q

What can help give patients the best treatment possible?

A

Interdisciplinary approach

33
Q

What are 3 requirements for a successful interdisciplinary approach?

A
  1. Good team
  2. Good plan
  3. Good communication

D3 Ortho Final (6 decks)

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