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Invisalign Flashcards

1
Q

why invisalign - general

A
  1. improve health - periodontal occlusal health
  2. pre-restorative case set up
  3. minimally invasive pat
  4. aesthetics
  5. ## referrals healtthy patient and practice
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2
Q

preventing gingival disease and bone loss shuld include?

A

proper tooth alignment

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3
Q

anterior crowding of 3mm or more serves as an

A

individual host factorfor perio disease

study recomends preventative treatment to help patients avoid bigger future problems

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4
Q

everyday opportuntiies for cleat aligner therapy

A

recession, clefting, cold sensitivity, abfractions, fractured teeth, avoid aggressive ceramics, bruxism, open airway dentistry- increase oral cavity volume via arch shape, pre restorative case set up

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5
Q

50% of population has

A

one or more sites of gingival recession

- progressive with age

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6
Q

horizontal vs vertical

A

horizontal more detremental

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7
Q

prevent afractions with

A

proper tooth alignment

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8
Q

theory of non carious cervical lesions

A

suggests that tooth flexure arising from cyclic, eccentric occlusal forces causes their formation and progression in vulnerable cervical regions of teeth

oblique HORIZONTAL LOADING on non caroious cervical lesions resulted in greater stress concentration compared with vertical loading

acute angles– displayed higher stress concentrations at the depth of the lsion

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9
Q

T/F invisalign can increase oral cavity volume?

A

yes - “open airway dentistry”

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10
Q

why ortho

A

treating malocclusion!

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11
Q

FDI definition of oral health

A

ability to speak, smile, smell, taste, touch, chew, swalllow and convey a range of emotions through facial expression with confidence and free fom pain or discomfort, and disease of the craniofacial complex

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12
Q

is malocclusion a disease?

A

yes
- crossbites, open bites, deep bites, and overjet

crowding diastemas spacing and rotations

each section is in their disease classfication

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13
Q

angles classification a disease?

A

no not active disease

but the crossbites, deep bites, etc are considered a disease

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14
Q

what considered a disease

A

transverse and vertical discrepencies are considered disease

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15
Q

class I can be healthy and unhealthy

A

yes

same w/ II and III

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16
Q

uncrowded adults have ___ transverse measurement

A

35-39 mm

developed a healthy occlusion without orthodontic intervention

shortest distance between teeth 3 and 14 (upper first molars) measure at the gumline

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17
Q

3 main things crowding comes from

A
  1. improper arch form
  2. improper arch width
  3. improper buccolingual inclinnation
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18
Q

buccolingual inclination

A

the buccolingual inclination of the maxillary and mandibular posterior teeth is assessed by using a flat surface that is extended between the occlusal surfaces of the right and left posterior teeth

there should NOT BE a significant difference between the heights of the buccal and lingual cusps of the maxillary and mandibular premolars and molars with all cusps within 1MM OF THE STRAIGHT EDGE

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19
Q

proper overbite

A

1.5 to 2 mm

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20
Q

moderate deep bite

A

cover 1/2 of lower teeth

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21
Q

patient in permanent dentition with class I treat?

A

anterior. premolar crossbite

do not correct molar crossbite

open bites less than 2mm

like arches

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22
Q

patient in permanent dentition with class I refer?

A

molar crossbite

mixed dentition

open bites over 2mm

unlike arches

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23
Q

patient in permanent dentition with class I refer?

A

molar crossbite

mixed dentition

open bites over 2mm

unlike arches

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24
Q

patient class II what is GP treating

A

No A-P correction

over jet is less than or equal to 3mm

if need to correct A-P or have overjet of over 3mm REFER

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25
class III gp?
no - never - always refer
26
how many photos needed for case submission
8
27
impression material you need to use if non digitial
PVS
28
5 basic zones | GP stay in what zones?
1. expand - transversely 2. procline A-P 3. IPR (make smaller keep same radius) 4. distilize 5. extract 1-3 stays within the GPR range
29
when is IPR useful?
black triangles due to perio and shape of teeth - crowding with inadequate formation of the papillla in gingival mbrasure triangular shape teeth periodontal disease
30
5 basic IMPORTANT STEPS
1. check the initial occlusion 2. check the comments tab 3. check the final position 4. check the animation and staging tabs 5. submit changes or approve
31
check the initial occlusion
``` step 1 - a-p directio ; check overjet and class relationship ``` vertical dimension - check overbite transverse direction -- check midline
32
check the comments tab
step 2 contains the most recent communication from technicians regarding your ClinCheck tx plan - quality of impressions - partially impressioned teeth - attachments interfering with occlusioon communication betwenn you and the lab check the anterior, lateral, and occlusal views was arch form width and buccolingual inclination addresssed? check overbute, overjet, intercuspation, occlusion, canine position if required -- apply changes
33
check the final position
step 3 | - checking this can give you the movement difficulty
34
blue and black dots are
red flags -- complicated movements happening on that area
35
blue means
moderate movements at times benefit from longr wear time or additinal techniques close monitoring is recommended
36
black
advanced movements often require longer wear time or additional techniques very close monitoring is recommended
37
check the animation and staging tbs
step 4 - evaluate the amount of movement having in mind - biology - consitency with paitent (perio, profile) - consistency with your tx plan
38
submit changes or approve
step 5 - check 1 -4 review and approve
39
patient first visit - starting tx
aligner delivery placing attachments IPR set up patient aligner care
40
3 ways to preform IPR
interproximal reduction 1. manual method with strips 2. slow speed disks 3. high speed bur 1-3 --> easiest ot hardest
41
red lines show
where you should be doing IPR's and when
42
materials required to perform IPR
``` manual diamond strip polishing strips measuring gause unwaxed floss fluoride varnish ```
43
attachments provide
movement control or retention three dimensional shapes added to tooth geometry to enhance interaction between an aligner and the teeth
44
red shaped in clincheck represents
where you will put attachments
45
retention for life during?
night only
46
amount of anterir crowding that serves as an individual host factor for perio disease
anteior crowdning of 3mm or more so can prevent gingival disease and bone loss should include recommending proper tooth alignment
47
what is considered in the disease classifications KO7.2 KO7.3
KO7.2 --> crossbites, open bites, deep bited, and overjets KO7.3 --> crowding, diestema, spacing, and rotations are disease classifications + transverse and vertical discrepancies are considered disease
48
malocclusion (corwding) comes from
improper arch form improper arch width improper buccolingual inclination *transverse dimension
49
arch forms
proper improper - v shaped improper omega (hardest to treat)
50
transverse measurement is | uncrowded average in adults?
shortest distance between 3 and 14 (upper first molars) measured at the gumline uncrowded adults have 35-39 mm transverse measurement can use cotten role test or boley gauge
51
32 mm transvverse is
improper arch width
52
proper buccolingual inclination of max and mand posterior teeth
assess by usnig plat surface that is extended between the occlusal surfaces of right and left poaterior teeth should NOT be a significant difference between the buccal and lingual cups -- all cusps should be within 1mm of the straigh edge
53
proper overbite
1.5-2mm
54
open bite
<2.0 mm
55
moderate deep bite
cover 1/2 of lower teeth
56
longevity of dental work is directly related to
severity of malocclusion
57
relative extrusion vs absoute extrusion
absolute -- comes straight down | relative moves down and back at an angle - root tip moves too
58
to increase the radius you
expand/ procline *increase arch length
59
movements to increase arch length movements to decrease tooth mass
increase arch length - expand / procline - distalize decrease tooth mass - IPS -- keep same radius, but resize the teeth (interproximal reduction) - extract -- keep same radius' extract -
60
first two choices when possible for correction of crowding
1. expand / procline | 2. IPR
61
to open a bite:
a vertical issue - flare teeth forward (relative intrusion) - upright posterior teeth - intrude incisore ( - build up posteriors after
62
to deepen bite
retract anteirors (relative extrusion) - extrude incisors - posterior equilibration
63
midline correctins subtract? add?
subtract - may require IPR add- may need to leave space for bonding centering midlines may be challenging
64
what is invisalign therapy
series of custom built Invisalign aligners engineered to apply specific forces to achieve the desired tooth movements wear 20-22 hours / day
65
GP three P's to follow
predictable, preventive, profitable
66
impressions that are ideal?
digital
67
digital impression material
itero element intr-oral scanner myitero software itero scan sleeve
68
PVS impression material
PVS material vinyl or nitrile gloves INVISALIGN IMPRESSION TREY
69
treating maloccclusion with crowding deep bite vs straightening teeth crowing deep bite
malocclusion -- primary using expansion straightening / cosmetic focus -- IPR and intrusion
70
spacing with treating malocclusion vs straightening
malocclusion --- consider leaving spaces for restorative solutions spacing with straightening - close spaces or position teeth for ideal restorative dentistry
71
when is IPR useful
black triangles due t perio and the shape of the teeth - crowding with inadequate formation of the papilla in the gingival embrassure triangular shaped teeth periodontal disease
72
first steps on the computer
1. new patient file 2. tooth movement restrictions (ankylosis or implant supported) -- need to mark these 3. attachments - place as needed 4. A-P relatinship - G-P select maintain 5. overjet 6. overbite 7. bite ramps - protrusions on the aligner for discluding posteiror teeth) 8. midline 9 posterior crosbite - do not correct 10. spacing and crowding
73
special instructions override?
yes - override clinical prefernces requests and restorative preference
74
weekly aligners?
this is the recommendation but depending on patient response to tx , particularly mature adults and non-compliant patients -- consider longer periods between aligner changes

Ortho (19 decks)

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