Tempo de uso das contenções fixas mandibulares: uma revisão de escopo

Abstract

Scope reviews are relevant to previously map the literature, before preparing a systematic review, as they structure the main sources and types of evidence that constitute a research area and are still useful as a Health Technology Assessment (HTA) tool. Quality scientific evidence is relevant to orthodontics, as it intervenes in the daily decisions of the clinic, combining the individual needs of each patient with professional experience and existing evidence. However, until the moment, there is a lack of studies in the literature that investigate the effects of retention time on the durability of results achieved with orthodontic treatment and prevention of relapses, in addition to the lack of uniformity between retention protocols and for how long. retention would need to be used. Thus, the following question arises: What does the scientific literature expose about the permanence time of mandibular fixed retainers? This is a difficult question to be answered at present, which can only be achieved with the development of more randomized studies. Based on this question, the general objective of this study is to map what the literature points out about the duration of use of mandibular fixed orthodontic retainers from a scope review. There was a cut of 13 articles, obtained from relevant databases in the Health area, such as MEDLINE/PubMed, LILACS/BVS, Scopus, Web of Science and Cochrane Library, in which the length of stay of orthodontic retainers in patients who underwent orthodontic treatments and who used fixed or bonded retainers, mandibular or lingual, was addressed, and in whose titles appeared the words retention or retainer related to the terms: protocols, practices, factors, procedures, duration and stability. Based on the analyzed data, the main indication is fixed retainer bonded to the lingual surface of all lower anterior teeth, to be used, as seen in most studies, for an indefinite period, which corroborates the need to more scope reviews to come up with a more secure and defined idea of time to stop using fixed retainers.