ortho appliances (dr. sun)

Question 1

bionator

Answer 1

• stimulate mandibular growth
• control tooth eruption
• removable

Question 2

twin block

Answer 2

• stimulate mandibular growth
• can include an expander
• can add headgears
• removable

Question 3

frankle appliance

Answer 3

• completely tissue borne
• buccal shields or lip pads to reduce cheek and lip pressure for expansion
• stimulate mandibular growth (lingual pads)
• removable

Question 4

headgear types

Answer 4

cervical pull
high pull
combi pull
j hook- face bow connected to soldered hooks on AW

Question 5

face mask and reverse pull head gear

Answer 5

for pre-adolescent patients exhibiting maxillary deficiency

Question 6

force for active tooth movement is provided by_______.

Answer 6

finger springs

Question 7

____, _____ and ______ provide anchorage and appliance retention

Answer 7

acrylic, labial bow, molar clasps

Question 8

removable appliances for tooth movement are used for _____, _________ and __________.

Answer 8

palatal expansion, mandibular arch expansion, molar distalization

Question 9

anterior bite plats

Answer 9

decrease overbite

Question 10

posterior bite plates

Answer 10

increase overbite

Question 11

Hawley retainer

Answer 11

removable

labial bow, clasps or rests on posterior teeth, acrylics

Question 12

spring retainer

Answer 12

used for retention and minor tooth movement
varying designs
removable

Question 13

tooth positioners

Answer 13

minor tooth movement and retention

fabricated on set-models

Question 14

angles 4 major appliance systems

Answer 14

E arch
pin and tube
ribbon
edgewise

Question 15

begg appliance

Answer 15

• modified ribbon arch
• auxiliary springs for root control
• wire and bracket very small with minimal friction, therefore quick tooth movement, but hard for root control
• not commonly used now
• fixed

Question 16

edgewise appliances have ______ slots and ______ archwires for torque control

Answer 16

horizontal, rectangular

Question 17

in a standard edgewise appliance, what is needed to compensate for horizontal position variations?

Answer 17

1st order bends

Question 18

how are differences of tooth long axis angulation compensated for?

Answer 18

varying bracket slot tipping or second order bends

Question 19

how are differences of tooth labial-lingual angulation compensated for?

Answer 19

• varying slot-bracket angle or differentially changing bracket thickness
• third order torque bends

Question 20

how are differences of tooth horizontal position compensated for?

Answer 20

first order (in and out) bends

Question 21

banding steps

Answer 21

tooth separation, band fitting, band cementation

Question 22

how are brackets tied to archwires?

Answer 22

elastic and stainless steel ties

Question 23

what are power chains used for?

Answer 23

space closure

Question 24

what are elastics used for?

Answer 24

improving occlusion, moving impacted teeth, shift midlines etc.

Question 25

open coil springs are used to _____.

Answer 25

open space, retract teeth, etc.

Question 26

closed coild spring are used to _______.

Answer 26

maintain space

Question 27

fixed appliances for class II correction

Answer 27

Herbst, MARA, forsus

Question 28

T/F: Herbst and forcus may have skeletal growth modification effects

Answer 28

False, Herbst and MARA

Question 29

lip bumper

Answer 29

arch expansion, molar distalization, incisor proclination

Question 30

jasper jumper

Answer 30

class II correction

Question 31

which expander give skeletal and dental expansion?

Answer 31

Hyrax palatal

Question 32

which expander gives dental expansion only?

Answer 32

lower arch

Question 33

quad helix w/ finger springs and W arch expanders are used in __________________ pts. helices are used for activation and increase _____ of tooth movement.

Answer 33

preadolescent and early mixed dentition, range

Question 34

transpalatal arch and lingual holding arch

Answer 34

anchorage and space maintenance | heavier than regular arch wires

Question 35

pendulum appliance

Answer 35

molar distalization bonded to premolars TMA wires with helices inserted to molars anchorage from palate

Question 36

habit appliance

Answer 36

tongue crib to correct tongue or finger habit heavy stainless steel wire anchored on molars

Question 37

removable appliances mainly produce tooth _____.

Answer 37

tipping

Question 38

fixed appliances can produce ______ and _____.

Answer 38

bodily tooth movement, tipping

Question 39

which type of appliances (remov. or fixed) has root movement control?

Answer 39

fixed