Fixed appliance treatment is the most precise way to control tooth
movement to achieve the perfect smile. There are three main
components to such appliances including the brackets (which are
attached to the teeth), archwires (the wires placed into the
brackets) and auxiliaries such as elastics. The bracket helps to
determine the final tooth position. The archwire acts as the motor
and places the necessary forces to initiate and sustain tooth
movement. The brackets can be made of metal or tooth coloured
ceramic materials.
Sometimes dental extractions have to be undertaken by the general
dentist before starting fixed appliance treatment if space is
required to correct tooth positions. The placement of fixed
appliances is pain free and does not involve dental injections.
Adjustments are typically undertaken at six weekly intervals.
Sometimes breakages can occur and appointments have to scheduled
between the main visits. The duration of fixed appliance treatment
can vary between 6-18 months depending on the complexity of the
case. There is some discomfort for 3-4 days following placement of
fixed appliances which can be controlled by mild pain killers (e.g.
paracetamol). The risks of fixed appliance treatment include dental
decay (if there is excessive sugar within the diet and if tooth
brushing is poor) and slight root shortening which is frequently
minimal.
The wires used to align teeth are commonly termed ‘archwires’. These
are made of metal (stainless steel or nickel-titanium) materials.
They can be covered with tooth coloured coatings to make them less
obvious. However, these coatings do have a tendency to decay between
visits and may slow tooth movement.

