Effect of palm oil alone or associated to stannous solution on enamel erosive-abrasive wear: a randomized in situ/ex vivo study - Ionta, Franciny Querobim; Alencar, Catarina Ribeiro Barros de; Santos, Natália Mello dos; Bergantin, Bianca Tozi Portaluppe; Val, Poliana Pacifico; Honório, Heitor Marques; Oliveira, Thais Marchini de; Rios, Daniela (Archives of Oral Biology, 2018)