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Tim's Cards > Ortho III > Flashcards

Ortho III Flashcards

1
Q

2 reasons 1st Ortho check-up should be prior to 7 years old:

A

Posterior occlusion established (1st molars)

Incisors begun to erupt (crowding/deep bites/open bites)

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2
Q

AAO does not advocate comprehensive Tx at age 7

A

True

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3
Q

6 indications for Phase 1 treatments:

A

Anterior/Posterior Crossbites

Impacted teeth

Skeletal growth problems

Habit

Space loss (from premature tooth loss)

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4
Q

What type of malocclusion is more prevalent in 8-12 year olds?

A

Pseudo Class III

*rather than Class III

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5
Q

Pseudo Class III is characterized by what 4 characteristics?

A

Anterior crossbite

Forward functional shift of mandible

retroclined max incisors

proclined, spaced mandibular incisors

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6
Q

Correction of Pseudo Class III crossbite
increases max arch perimeter
decreases risk of gingival recession
decreases risk of incisal wear

A

True

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7
Q

Unilateral crossbites represents U/L ______ discrepancy

Mandible shifts to avoid ______

A

transverse ridge

interferences

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8
Q

Bilateral crossbite is a true ________

What is more common cause?

A

skeletal discrepancy

Mx constriction (rather than Mn enlargement)

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9
Q

Canine exposure technique depends on canine position

labial/mid-alveolar/palatal
apical/coronal to attached gingiva

A

True

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10
Q

4 techniques to expose Canine:

A

Gingivectomy

Apically positioned flap (plus bracket)

Closed eruption (tip and pin)

Open eruption (lingual/bracket)

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11
Q

Canine exposure technique if mid alveolus:

If Buccal:

If Lingual:

A

Gingivectomy or Closed eruption

Apically positioned flap

Open eruption

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12
Q

Lit says to treat Class II in early treatment

A

False

*no difference in final overjet, etc…

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13
Q

Lit says facemask effective for correcting anterior crossbite, improving overjet, with slight relapse - to treat Class ____

A

III, early Tx

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14
Q

Pacifiers should stop at what age?

Behavioral mods/reinforcement

at home techniques

what is last resort?

A

2 years

Appliances

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15
Q

Band and Loop

Distal Shoe

Lingual Arch (TPA/Nance/LLHA)

Partial Denture

all do what?

A

Maintain space from early tooth loss

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16
Q

Lip bumper can be used to ameliorate 3mm or less of localized space loss

A

True

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17
Q

Moderate to Severe generalized crowding, 2 options:

A

Expansion

Extraction

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18
Q

There should be no active Periodontal disease in an ortho patient

A

True

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19
Q

If a tooth needs a crown, determine stability enough to the end of ortho treatment

*bond/bracket to crown will alter finish on porcelain

A

True

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20
Q

Discuss spacing with orthodontist for restorative Tx

A

true

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21
Q

Need to check root position if implant is indicated prior to de-bonding

A

True

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22
Q

Active agent in Prevident:

A

Sodium fluoride 1.1%

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23
Q

MI paste is calcium phosphate

Icon infiltrant is most promising Tx, low viscosity light curing resins

A

True

True

*with Prevident, 3 ways to mitigate WSL’s

24
Q

There is no difference between MI paste, prevident, fluoride varnish, standard OH to prevent WSL’s
*and lit says remineralizing agents aren’t effective

A

True

25
Q

Etching is a risk factor for WSL’s

A

True

26
Q

External Apical Root Resorption can resolve after 6 months

A

True

27
Q

EARR is usually less than ___mm

Severe (over 4mm) is seen in ___% of teeth

Seen most in what incisors?

A

2.5 mm

1-5%

Mx incisors > Mn incisors > first molars

28
Q

Increased duration, magnitude, intrusive movement, apical movement, method of force are all risk factors for EARR

A

True

29
Q

Bolton analysis is tooth size discrepancy leading to arch discrepancy

A

True

30
Q

Ortho is not a significant risk factor in TMD

A

True

31
Q

Malocclusion does not cause TMD

A

True

32
Q

If TMD, ortho Tx changes from intercuspal stability to a stable functioning masticatory system

A

True

33
Q

Minor tooth movement should be called isolated tooth movement

Tx time around 6 months

A

True

34
Q

4 examples that indicate minor tooth movement

A

(there are like 10 more than this)

Reposition drifting teeth for fixes/removable/implant

Align anterior teeth (esthetic/splinting)

Correct crossbite

Forced eruption for crown placment

35
Q

What 3 procedures should dentists NOT attempt

A

Ortho for TMJ

Intrusion

Alleviation of crowding > 4mm

36
Q

Molar uprighting, bringing mesial root forward to close space is more difficult than tipping

A

True

37
Q

Ortho forces must be lighter in adolescent patients

A

True

38
Q

Labial movement of incisors to alleviate crowding can result in gingival recession

A

True

39
Q

Width of attached gingiva and thickness of gingival tissuea re equally important in predicting recession

A

True

40
Q

If minimal perio involvement, need what 2 things?

A

probing depths

level of attached gingiva

41
Q

If moderate perio involvement, need what?

A

Control perio condition

Defer restorative until ortho complete

Ovoid bands, consider self ligating brackets

Perio maintenance every 2-4 months while in Tx

42
Q

If severe perio:

A

maintenance every 4-6 weeks

Tx mechanics need to be altered, keep forces minimal

May keep hopeless teeth for anchors

43
Q

Most common Tx at old extraction sites:

A

Upright tipped teeth, place implant/bridge

44
Q

What is the exception of the rule to never move tooth into extraction space?

A

Juvenile aggressive perio - can close space of 1st molar

45
Q

Invisalign (clear aligner therapy), extrusion, rotation, and space closure are not as predictable as other movements

A

True

46
Q

Lingual orthotics are custom made for every tooth, and short span between brackets allows for what?

A

Stiffer wire

47
Q

3 retention devices:

A

Essix retainer (Hx perio/loss of tooth support)

Occlusal splint

Wraparound retainer

48
Q

5 factors to have good results w/ camouflage

A

Short, avg facial pattern

mild A-P discrepancy

< 4-6 mm crowding

Normal soft tissue pattern

No transverse skeletal issues

49
Q

Tension side

Pressure side

A

Oseoblasts

Osteoclasts

50
Q

What is the rate limiting factor in moving a tooth?

A

Pressure side (osteoclasts)

51
Q

Inflammatory markers signal bone resorption/remodeling

A

True

52
Q

RAP

A

Regional Acceleratory Phenomenon

53
Q

A tissue reaction that increases the healing capacities of affected tissues

A

RAP

54
Q

RAP is characterized by acceleration of normal cellular activities

A

True

55
Q

AOO

A

Accelerated Osteogenic Orthodontics

Wilckodontics

Tim's Cards (140 decks)

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