[Fixed orthodontic appliances and clear aligner system: a comparative review].

Unlabelled: One of the biggest controversies in current orthodontics is determining the appliance to use, since today patients seek better results in shorter times, in addition to putting aesthetics first.

Objective: compare the benefits and disadvantages that arise when using fixed orthodontic appliances and transparent aligners.

Materials And Methods: An investigation and compilation of specialized bibliographic information on the topic was carried out in scientific search engines such as PubMed, SciElo and Web of Science between the years 1991 to 2023, focused on research work related to the effects of the use of orthodontic appliances.