Self-ligating versus conventional metallic brackets on retention: A systematic review.

Objective: The present study aimed to review the literature systematically and assess comparatively whether self-ligating metallic brackets accumulate less biofilm than conventional metallic brackets.

Material And Methods: The systematic search was performed following PRISMA guidelines and registration in PROSPERO. Seven electronic databases (Google Scholar, LILACS, Open Grey, PubMed, SciELO, ScienceDirect, and Scopus) were consulted until April 2016, with no restriction of language and time of publication.