Fixed Appliances Flashcards
how to fixed appliances move the teeth?
moves by means of brackets and attachment to bonds
what type of appliance causes tipping of the teeth?
removeable
what type of appliance gives a bodily movement?
fixed
what type of appliance causes extrusion and intrusion?
removeable and fixed
what type of appliance can cause rotation of teeth?
fixed
what type of appliance causes torque?
fixed
what is an edgewise fixed appliance?
straight slot cut wire into brackets
tooth position determined by any bends in archwire or orientation of bracket slot/base
what is a pre adjusted fixed appliance?
the slots are pre angulated
minimun bends in archwires
what to contemporary braces give?
optimum control of tooth movement
what can bodily movements of teeth correct?
space closure
overjet reduction
what kinds of movements can contemporary braces cause?
bodily movements rotations extrusion and intrusion uprighting root torqueing
what are the 2 types of contemporary fixed appliance?
labial
lingual
what are the 2 types of ligation?
conventional - bands
self ligation
what are the types of bends found in a brace?
in out bends
tip bends
torque bends
how are brackets put on teeth?
composite resin sandwich and etc
applied with tweezers
what are the 3 tubes found in molar bands?
archwire tube
auxilliary tube
headgear tube - maxillary only
what are the 4 types of materials archwires can be made from?
nickel titantium
SS
beta titanium
glass/composite
what are the 2 types of nickel titanium wire?
round or rectangular
thermally activated
what form do SS wires come in?
round or rectangular
what wires are used for alignment and levelling?
nickel titanium
what wires are used for overbite reduction?
SS
what wires are used for overjet reduction?
SS
what wires are used for space closure?
SS
what wires are used for finishing and detailing?
nickel titanium
what types of auxillaries can be used in combination with a fixed appliance?
elastic bands
springs
palatal and lingual arches
headgear
what class’s of malocclusion is elastic traction used in?
Class 2/3
what are temporary anchorage devices used for?
anchorage
distal movement
what is used to remove an aplliance?
bracket and bond removing forceps
what are the types of removeable retainers?
hawley type
pressure formed
what are they types of fixed retainers?
wire
other
what problems can a fixed appliance cause?
demineralisation and caries gingivitis perio destruction ST trauma root resorption pulp death enamel fracture
