Functional braces are usually used to reduce the prominence of upper incisors and to improve the way the teeth bite together.
They usually consist of two removable blocks (‘Twin Blocks’), one fits over the top teeth and one over the bottom teeth. By holding the lower jaw forwards a force is generated which moves the upper teeth backwards and the lower teeth forwards. Sometimes there may be some favourable growth of the lower jaw.
Functional appliances should be worn on a full-time basis, day and night, for about 9-12 months. They must be removed for cleaning, swimming and contact sports. Further orthodontic treatment with fixed braces is usually needed after functional appliance treatment.
URA
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