LGALS3 and periodontal disorder: Although it is known that Gal-3 affects the key processes involved in the pathogenesis of periodontal diseases, inflammatory/immune responses and antimicrobial activity, there is no data about its possible role in development of these diseases, except few reports about Gal-3 expression in periapical lesions in humans (de Oliveira et al., 2014; Brito et al., 2018; Brito et al., 2018).