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ABSTRACT

HUGO DANIEL TOME DA SILVA:

Clear aligners as an option on ortodontic threatment

The objective of this dissertation is analysing the use of clear aligners as treatment in
orthodontics. For this purpose was made an approach about the evolution of this

orthodontic devices and which are the most recent and possible solutions we can use to
achieve certain orthodontic corrections. This dissertation will also focus in certain

orthodontic corrections that have been made possible with recent developments, but not
long ago were problematic and difficult to resolve with clear aligners, the issues addressed

are openbite, deepbite, space clousure, crossbite, extrusion, class II correction and class

III correction. Furthermore was made an analysis on the main advantages and limitations
of clear aligners when compared with conventional fixed appliances.

Key words: Clear aligners, Invisalign, orthodontic treatment

II