[Combining the benefits of aligners with those of fixed appliance treatments - Part 2].

INTRODUCTION: Aligners are presented as an aesthetic and simple solution capable of treating a wide range of malocclusions. However, they require numerous auxiliaries that are often complex to implement and unesthetic attachments to compensate for their inability in reproducing the simulated movements. OBJECTIVES: The aim of this article is to review the advantages and limitations of aligners by proposing an aesthetic, rational, and standardized solution. MATERIAL AND METHODS: The scientific data shows the movements for which aligners are less effective. The article illustrates through a clinical case how it is possible to combine the 2D lingual appliance and aligners to compensate for the shortcomings of each and optimize their strengths during their use. RESULTS: When the treatment plan defines the movements to be performed, the choice of the appliance becomes clinically and logically evident according to the ongoing therapeutic sequence. CONCLUSION: Aligners offer advantages that make them indispensable in the orthodontist's therapeutic arsenal, but they are not sufficient on their own.