Efficacy of Hank’s balanced salt solution compared to other solutions in the preservation of the periodontal ligament: a systematic review and meta-analysis - Fagundes, Nathália Carolina Fernandes; Bittencourt, Leonardo Oliveira; Magno, Marcela Baraúna; Maia, Lucianne Cople; Lima, Rafael Rodrigues; Marques, Márcia Martins (PL o S One, 2018)