Efficacy and safety of oral sprays used to manage dry mouth – Systematic review and network meta-analysis. SciELO Preprints, 2025. DOI: 10.1590/SciELOPreprints.14367. Disponível em: https://preprints.scielo.org/index.php/scielo/preprint/view/14367. Acesso em: 31 maio. 2026.