vertical/ open and deep bites

Question 1

over bite

Answer 1

amount of overlap of man I by max I

Question 2

ideal overbite

Answer 2

20% +/-5

Question 3

is overbite amt directly related to malocc severity

Answer 3

no

Question 4

etiological factors of overbite

Answer 4

Question 5

what is class 2 div 2 occ?

Answer 5

class 2 molar relation with retroclined max I

Question 6

growth considerations with overbite

Answer 6

Question 7

if pts has deepbite, will it improve with growth?

Answer 7

no, sometimes may even increase

Question 8

deepbites and overeruptions

Answer 8

can result from over eruption of incsiors on either arch

Question 9

what is causing this deepbite?

Answer 9

over eruption of max I

Question 10

what has occured here, tx?

Answer 10

over eruption of both arches incisors relative to occ plane
tx would include intruding both incisors sets

Question 11

correcting two step occ planes with deep bites

Answer 11

use of two wire set to place intrusive force on incisors

Question 12

leveling curve of spee in some deep bite cases

Answer 12

may need to be corrected if occlusal plane is in multiple planes
can be done by:

Question 13

relapse with overbite/deepbite?

Answer 13

high tendency

Question 14

how can we avoid relapse with deepbite cases?

Answer 14

Question 15

steps to tx deepbite with only man I extrusion

Answer 15

bite opening will allow space for brackets

Question 16

when can bite blocks be removed for deepbite cases with only man I intrusion?

Answer 16

once the I are intruded the bite blocks can be removed

Question 17

posterior segment extrusion

Answer 17

may lead to deep bite, can be tx with bite plate at night to create space for eruption of antagonists and with lower intrusion arch

Question 18

cervical HG therapeutics

Answer 18

can be used to correct class 2 molar relations and extrude molars by halting maxilla growth displacement and allowing mandible to catch up.
intrusion arch for max I, lower molar eruption with a bite plate

Question 19

open bite etiologies

Answer 19

Question 20

multifactorial etiologies of openbite

Answer 20

Question 21

open bite:
* present in?
* etiologies defined?
* studies?
* relapse?

Answer 21

Question 22

facial types associated with open bite

Answer 22

means long faces

Question 23

lips of open bite

Answer 23

altered support and seal

Question 24

upper I show of open bite

Answer 24

can show at rest but also variable

Question 25

smile line of open bite

Answer 25

altered

Question 26

coomon facial proprotion of open bite

Answer 26

variable but long lower third common

Question 27

dentoalveolar responses causing an open bite

Answer 27

Question 28

analyzing occ plane with open bite

Answer 28

Question 29

describe this

Answer 29

open bite, could be due to molar extrusion or intruded incisors (maxillary I are proclined)

Question 30

dif dx of open bite etiologies

Answer 30

Question 31

parafunctional habits leading to open bite

Answer 31

Question 32

potential tx for thumb sucking pt

Answer 32

also tongue spurs, good to fixed applaince (no reliance on compliance)

Question 33

tongue crib

Answer 33

fixed appliance with bands on molars and palatal arch, use of crib to stop tongue from going forward

Question 34

AOB of NM origin

Answer 34

Question 35

ismar modified applaince

Answer 35

can be used to break NM habits

Question 36

what is this?

Answer 36

appliance using tongue spurs as well as jeckscrews for palatal expansion

Question 37

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how can a pt be class 3 and not show it with their profile

Answer 37

steep man plane

Question 38

Class 3 open bite tx

Answer 38

typically surgical case (extr with orthodontics as well

Question 39

1.

diagnosis of class 3 openbites

Answer 39

Question 40

do all cases end up class 1?

Answer 40

no, could be dif classes for both M and C but functionally are acceptable

Question 41

words of caution for tx vertical cases

Answer 41