Unit 304- ortho Flashcards

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1
Q

overjet and how much

A

front teeth horizontal gap
2-4 mm gap

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2
Q

over bite and how much

A

deep bite
50%

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3
Q

open bite

A

mouth does not close

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4
Q

lip competency

A

inability to close lips with no strain

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4
Q

class 1

A

normal relationship

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5
Q

class 2

A

L6 is more towards back pushing upper jaw forward

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6
Q

class 3

A

L6 is more forward pushing lower jaw forward

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7
Q

class 2 div 1

A

horizontal incisors
open lip

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7
Q

class 2 div 2

A

teeth just meet

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8
Q

class 3 of incisors and also called

A

upper incisors behind lower
also called prominent lower jaw

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9
Q

what is it called if several teeth are missing

A

hypodontia

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10
Q

what does sucking habits cause

A

cross bite

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11
Q

common appliance for bite functional appliance

A

twinblock

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12
Q

how to remove excess cement on ortho

A

mitchells trimmer

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13
Q

patient advice for fixed

A

-avoid sticky coloured foods
-interdental brushes
-tooth brushing

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14
Q

what are end cutters

A

to cut archwire

15
Q

what are alastik holders

A

to place rubber bands on

16
Q

removable protheses additional 4 components and explained

A

-adams crib to retain the appliance in mouth
-springs to move teeth
-retractors to push teeth back
-expansion screws to move several teeth out

17
Q

removable protheses advice

A

-clean after every meal
-wear as instructed

18
Q

what do you use to adjust acrylic appliance

A

acrylic trimming bur straight handpiece

19
Q

what is the expansion screw key for

A

to count number of turns to the screw

20
Q

what is a twinblock for

A

class 2 allowing mandible to grow forward