AUTHOR=Santarelli Andrea , Wong David T. W. , Lo Muzio Lorenzo TITLE=Editorial: Saliva and Oral Microbiota: From Physiology to Diagnostic and Therapeutic Implications JOURNAL=Frontiers in Physiology VOLUME=11 YEAR=2021 URL=https://www.frontiersin.org/journals/physiology/articles/10.3389/fphys.2020.637599 DOI=10.3389/fphys.2020.637599 ISSN=1664-042X