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Ortho Part B > Class 2 > Flashcards

Class 2 Flashcards

1
Q

Sleep is a ____ process and is biological _______

A

Active

Imperative

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2
Q

Sleep is

A

Reversible behavioral state3 of perceptual disengagement from and unresponsiveness to environment

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3
Q

____ and _____ prevent and disturb sleep

A

Insomnia

Pain

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4
Q

_____ dreams more common and have more vivid dreams

A

REM dreams

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5
Q

Is EEG slowed during sleep

A

No very similar to being awake sometimes more active

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6
Q

Stage I

A

Transitioning from awake to asleep

5% of night-easy to awaken

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7
Q

Stage 2

A

Light sleep
50% of night-brain activity slopes
Bursts of activity-Transfer from short to long term memory

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8
Q

Stage 3&4

A

Slow wave sleep
10-20% of night-secretion of growth hormones, cell repair and rebuilding

1st half of night-wake up refreshed low heart breathing rate

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9
Q

What stage can you be roused

A

Stage 2

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10
Q

REM length

A

20-120 minutes

20-25% of the night

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11
Q

During REM

A

Brain recovery dreaming processing memories

Brain waves close to wakefulness and bP heart rate

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12
Q

REM length ____ over night

A

Increases

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13
Q

N3

A

Deep Sleep SWS decreases across adolescence

Declines further into old age. Can’t wake children

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14
Q

There are brief periods of

A

Wakefulness later in night-not long enough to be remembered except in old age

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15
Q

SWS length

A

Depends on prior wakefulness

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16
Q

REM sleep is linked to

A

Circadian rhythms

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17
Q

Sleep onset linked to

A

Falling body temps

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18
Q

Wakefulness linked to

A

Rising body temps

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19
Q

Narcolepsy prevalence

A

1 in 1400

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20
Q

Cataplexy

A

Type of narcolepsy

REM sleep intrudes into wakefulness-muscle Antonia

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21
Q

Sleepiness

A

Fall sleep in 5-6 minutes during day

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22
Q

EDS

A

Excessive daytime sleepiness

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23
Q

EDS prevalence

A

10%

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24
Q

Short sleepers have

A

Much higher risk of chronic conditions

25
Q

EDS risk factors

A 
Sleep hours
Martial status-single
SNoring several nights weekly 
Depression
Employment -FT
Shift work
26
Q

Measuring Sleepiness

A

Behavioral signs
Subjective reports
Influences/masking

27
Q

Objective measures

A

Psychomotor vigilance

Multiple Sleep Latency test

28
Q

Sleep is regulated by 2 systems

A

Sleep/wake homeostasis

Circadian biologic clock

29
Q

_______ alerting system keeps you Albert later in the day

A

Circadian altering system

30
Q

Sleep is characterized by decrease in

A 
Body temp
BP
BR
Other bodily functions
But an active brain
31
Q

Sleep is not a ___

A

Time out

Increase Parasympathetic
Increase in some endo secretions

32
Q

Extracellular space

A

In brain increases in brain during sleep

33
Q

20X greater

A

CSF flow during sleep

34
Q

There states of being

A

1) Wkae
2) Non-REM SLeep
Stage 1, 2, 3, 4,
2=50%
3,4= 30%
3) REM=20%

35
Q

A normal sleep pattern has how many cycles per night

A

4-5

36
Q

Primary effect of sleep deprivation

A

EDS

37
Q

Apnea

A

Cessation of airflow for > 10 seconds

38
Q

Hypopnea

A

Decreased airflow >10s associated with O2 desaturation and or arousal

39
Q

Apnea-hypopnea index=

A

Total #s (apnea+Hypopneas)/Hours of sleep

40
Q

Severity of Sleep Apnea

A

AHI

Normal =<5
Mild=5-14
Moderate =15-30
Severe= >30

Per hour of sleep

41
Q

Obstructive Sleep apnea Syndrome

A

Definition AHI> 5+ daytime hypersomnolence

42
Q

Hypersomnolence

A

Daytime sleeping

43
Q

Epworth Sleepiness Scale

A

Test to measure sleepiness

0-10 normal
10-12 borderline
12-24 abnormal

44
Q

Causes of OSAS

A

Anatomic airway narrowing wall collapsibility with sleep induced loss of muscle tone and insufficient dilator muscle contraction on inspiration

45
Q

Narrow part I

A

Increased velocity Decreased Pressure

46
Q

Narrow part 2

A

Increased velocity

Vibrates soft tissue=noise

47
Q

_____ results in snoring

______results in airway collapse ie apnea

A

High velocity

Low pressure

48
Q

Pediatric Sleep breathing disorders

A

Associated with orocranuiofacial features of retro positioned mandible
High arched palate
Narrow intermolar width

49
Q

The most common cause of EDS is

A

Chronic insufficient sleep

50
Q

STOP BANG

A

Snorng
Tired
Observed
Blood Pressure

BMI
Age
Neck circumference
Gender

More than 3= high risk

51
Q

Clear plastic advantages

A

Esthetics
Hygiene
Comfort
Tooth movements —Intrusion

52
Q

Clear plastic limitations

A 
Tooth movements 
-Ttrnalation
-Rotation
-Extrusion
Speed
Expense
53
Q

What is now required for clear aligners

A

Impression

Photographs

Bite reg & pan not needed

54
Q

Type of impression needed

A

Upper and lower both always

Putty with light body seated evenly

55
Q

As the tray is forced over the height of contour

A

And locks ontot he teeth it’s distorted

56
Q

The aligned exerts a

A

Force on the teeth where it’s distorted

57
Q

Attachment helps

A

Direct forces

58
Q

Generally alingers

A

Push

59
Q

Rotation and extrusion can be facilitated by

A

Modifying an aligned to allow sue of an elastic to a button on the torated tooth

Ortho Part B (4 decks)

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