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Ortho Final > Sweep 1 > Flashcards

Sweep 1 Flashcards

1
Q

Effectiveness:

A

what something can do in the real world.

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2
Q

Efficacy:

A

what something can do in a controlled environment

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3
Q

Space maintenance for a period of time of

A

6 months or more - most damage occurs in first six months. Mostly posterior teeth coming forward in upper, anterior going backwards in lower.

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4
Q

Nance is best for when you are missing

A

multiple upper teeth. Don’t use transpalatals for missing teeth on both sides of arch - they would both tip forward.

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5
Q

Nance are

A

inactive appliances.

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6
Q

Bilateral max constriction with CO-CR shift ⇒ Tx with

A

W-arch, Quad helix

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7
Q

Open coil

A

opens space - need to be compressed to be activated.

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8
Q

Closed coil

A

holds space

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9
Q

W-arch:

A

○ Reciprocal anchorage
○ W-configuration → increases wire length ( ↑ flexibility)
○ Force applied near palatal CEJ (not thru Cres)
■ Compression on facial surfaces of molars
■ 50% skeletal & 50% dental
○ Fabrication ⇒ 1rst molars to place band
○ Retention ⇒ ~ 3 months (will relapse into normal occlusion)

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10
Q

Quad Helix

○ Only issue may be

A

patient compliance → pt may bend lingual wire

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11
Q

Space regaining

A

more than 3 mm need expansion.

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12
Q

● Pseudo Class III

A

○ Class I, but interference causes CR-CO shift leading to anterior crossbite

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13
Q

Deep bite use

A

hawley and bite plate (plastic between front teeth).

Best situation for this? Trauma - palatal tissue irritation

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14
Q

○ Max. removable with double helical cantilever

■ Steel round wire .022
● Double helix →

A

increases length, thus ↑ range & springiness

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15
Q

○ Max. removable with double helical cantilever

■ Steel round wire .022
● If too small →

A

deformed by pt; if too big → heavy forces

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16
Q

Double helical cantilever:
● Retention via
● Force applied ——

A

adams clasps (Lots of retention required; many clasps)

lingually

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17
Q

Double helical cantilever

● No labial bow →

A

common feature of removables, but labial bow interferes with desired facial movement)

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18
Q

Max removable with double helical cantilever
■ Tx for —— months
● Activate

A

1-3

2 mm → gives 1 mm of movement in 1 month

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19
Q

○ Fixed appliance for AP bodily movement:

A

■ Rectangular wire

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20
Q

● 1° dentition w/o successors

A

○ Ankylosis worsens, so when extracted greater vertical defect (greater periodontal injury & attachment loss)
○ Consider early extraction

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21
Q

○ Elastic bandage ⇒ around elbow; only at night

A

■ Bulkiness reminds child; not a tight restraint

■ For 6-8 weeks

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22
Q

Treatment options for ankylosed 2nd 1° molars without successors:

A

● Maintain 1° molars (if no bony defects)
● Extraction before vertical discrepancy too great
● Decoronation - remove crown & leave root tip (facilitates vertical bone growth)

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23
Q

● Don’t treat deep bite in mixed dentition → unless

A

soft tissue trauma

24
Q

16 y/o male with Class III

A

don’t treat till 21 - female at this age can be treated

25
Q

○ Hawley retainer with finger spring (tipping) →

A

2 mm activation gets 1 mm movement

26
Q

■ Adams clasps better for

A

retention (wraps around teeth; good for kids with short crowns)

27
Q

TMA preferred over stainless steel for making

A

bends for extrusion - better flexibility)

28
Q

○ Retention required when —– manipulated

A

several teeth

29
Q

○ Anterior crossbite correction doesn’t require retention if

A

proper overbite achieved

30
Q

○ Round wire for —– & —– for finishing

A

aligning

rectangular

31
Q

Apnea-Hypopnea Index (AHI) =

A

total # of apnea + hypopnea / hours of sleep

32
Q

Metabolic syndrome ⇒

A

group of risk factors that occur together & ↑ risk of CAD, stroke, DM Type II

33
Q

● EGG ⇒

A

monitors brain activity to document sleeps stages

34
Q

● EOG ⇒

A

eye movements - determines REM vs. non-REM sleep

35
Q

● Nasal/oral capnography ⇒

A

● Nasal/oral capnography ⇒ measures air flow from nose & mouth

36
Q

● EMG ⇒

A

muscle activity; bruxism & restless leg syndrome

37
Q

● ——————— has highest accuracy for invisalign

A

Lingual constriction

38
Q

Moderate generalized space discrepancy (—- mm per arch)

A

<4

39
Q

Moderate generalized space discrepancy
○ Active Lingual Arch
■ Treats ——–

A

anterior crowding

40
Q 
Moderate generalized space discrepancy  
Active lingual arch
●	Best for --------
●	------- of incisors (NOT good for rotations or bodily movement)
○	--------- of molar (anchor tooth)
●	Increases risk of ---------
A

faciolingual discrepancies

Facial tipping

Distal tipping

2nd molar impaction

41
Q

Moderate generalized space discrepancy
○ Active Lingual Arch
■ Clinical management ⇒

A

separate teeth for banding; activation every 4-6 weeks

42
Q 
Moderate generalized space discrepancy  
○	Lip Bumpers
■	Treats ----------
●	Best for ------- discrepancies
●	Possible -------------
A

lower anterior &/or buccal segment crowding

facial lingual

2nd molar impaction

43
Q

Moderate generalized space discrepancy
○ Headgear
■ Treats ——— (maxillary arch ONLY)
● Molar movement ———–
○ ———– fibers will pull premolars distally too
● Cervical headgear → also does ———-
● Requires compliance

A

buccal segment crowding

distally &/or buccally

Interseptal gingival

extrusion

44
Q 
Moderate generalized space discrepancy  
Headgear
■	Clinical management:
●	Adjustment every ----weeks
●	Can expect----- mm in a year
A

6-8

3-4

45
Q

Serial extractions ⇒ Severe space discrepancy

A

> 10 mm per arch

46
Q

● Localized space shortage is an opportunity to regain space if

A

< 3 mm per quadrant

47
Q
  1. Permanent molar ectopic eruption

○ 1rst permanent molar erupts —— → may cause ———-

A

mesially

1° molar resorption & loss

48
Q

Moderate localized space discrepancy (

A

<3mm per quadrant)

49
Q

○ Space regaining treatment plans:

A

band and spring

50
Q

■ BAND & SPRING
● ——- banded and spring pushes——– back
● ——— tip
○ Short roots bc still erupting - very easy to tip
● Fabrication → made by lab, so need to band and separate tooth for impression; wire bend & soldered by lab
○ Activated——-
○ Treatment completed after —- activations
● No ——- required

A

1° molar

2° molar

Uncontrolled distal crown

3-4 mm

2-3

retention

51
Q

Moderate localized space discrepancy

● Direct (Intraoral) fabrication with no soldering → tooth banded & bent wire used as spring

A

■ MODIFIED BAND & SPRING

52
Q

● Most modern & efficient way → No banding; intraoral fabrication
● Brackets bonded on dentition with spring inbetween

A

■ BONDED SPRING

53
Q

Space regaining for posterior tooth loss
○ Max. removable appliance - Hawley finger spring
■ Biomechanics:
● Resistance/anchorage via ———-
● Uncontrolled ——– tip
■ Lab fabrication;—–mm activation; —– movement per month
■ ———– required (with ——–)

A

adams clasps & anterior palate

distal crown

2-3

1mm

Retention & stabilization

band & loop

54
Q

Space regaining for posterior tooth loss
○ Banded & bonded appliance with coil spring
■ Open coil spring biomechanics
● Reciprocal force applied ———–
● Distal force & moment produces ——–
○ Mesial rotation of ——— rotation of molar

A

buccal to C-res

rotation

PM & Distal

55
Q

Space regaining for posterior tooth loss
○ Banded & bonded appliance with coil spring■ Contralateral 1rst permanent molar banded as well
● Mandibular arch → Anchorage via anteriors with ———
● Maxillary arch → Anchorage via ——- on palate

A

LLHA

nance button

56
Q
  1. Space regaining for anterior & posterior space discrepancy (
A

<3mm)

57
Q
  1. Space regaining for anterior & posterior space discrepancy
    ○ Treatment with Lower lingual holding appliance (LLHA)
    ■ Tips ——- (~roughly equal distance)
    ● Inefficient way to move teeth bc wire is
A

molars distally & anteriors facially

heavy with little range of movement, but good way to gain space

Ortho Final (8 decks)

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