Ortho II: Removable Appliances Flashcards
Most common ortho tooth movements
Tipping
Most common appliance
Hawleys appliance
Commonly used in space regainers
Adam’s clasp
Adam clasp max space it can regain
Less than 3 mm
Appliance that doesnt move teeth
Does it have anchorage component
Passive appliance
No
Most common denture base material
Polymethyl methacrylate
Appliance that moves teeth
Does it have anchorage component
Active appliance
Yes
Headgears are usually used in developing ____
Class II But can also be used with class III
Head gears tx length
6-18 mos
Worn how many hours (headgears)
10-14 hrs
Movement of high pull headgear
Distal and intrusive
Head gear for class III
Reverse pull headgear
Movt of cervical pull headgear
Distal
Extrusive
Reverse pull headgear aka
Facemask
Growth displacement of mandible
Downward and forward
Extra oral headgear use to treat scoliosis
Malwaukee braces
Only tissue borne appliance
Frankel functional appliance
Tooth borne appliance (4)
Bionator
Activator
Herbst
Twin block
BAHT
Designed to modify growth during mixed dent both dental and skeletal effects
Functional appliance
Growth direction of mandible
Superior and post
SS wires are made from
Cobalt chromium
Max and md framework splinted together via tube and pin that hodplds mand forward
Herbst
Advances md to an edge t edge position to stimulate mand growth for class II
Activator
Tooth borne appliance that uses two pieces acrylic app
Twin block
Edgewise appliance was invented by
Edward Angle
Edgewise is horizontally or vertically positioned slot
Horizontal
Ribbon arch app - vertical
Most commonly used ortho appliance
Edgewise app
Modified ribbon arch app
Begg app
Pioneer of self ligating
Self ligating brackets or damon brackets
Phosphoric acid discovered by
Buonocore (1955)
Most common content of bonding agent
Bis GMA
Bis GMA was discovered by
Bowen (1962)
Etching aka
Conditioning
In bonding they use ___% unbuffered phosphoric acid
35-50
Niti aka
Memory wire
In banding what cement is used
GI cement
% of phosporic acid used in resto
37%
What provide corrosion resistance to ss
Chromium
What causes rigidity of ss
Cobalt
Composition of niti that causes allergies
Nickel
Beta titanium aka
Titanium molybdenum
First order movement
In and out bends
Facial lingual rotational
Second order movt
Tip bends
Mesial and distal
Third order movt
Torque
Intraarch elastics for space closure and it can open the bite
Common to molars and canines
Class I elastics or horizontal elastics
Movt of canine to class I elastics
Molar
Distal
Mesial
Elastic place in max C and Lower molar
Movt of C
Movt of M
Distal and extrusive
Mesial and extrusive
Elastics for class III placed in lower C and upper M
Movts
C - distal and extrusion
M - mesial and extrusion
Elastics used to treat open bite up to 2 mm
Ant elastics
Elastics used to treat class II div I aka Sunday bite
Zigzag elastics