AUTHOR=Conrads Georg , Bockwoldt Julia A. , Kniebs Caroline , Abdelbary Mohamed M. H. TITLE=Commentary: Health-Associated Niche Inhabitants as Oral Probiotics: The Case of Streptococcus dentisani JOURNAL=Frontiers in Microbiology VOLUME=9 YEAR=2018 URL=https://www.frontiersin.org/journals/microbiology/articles/10.3389/fmicb.2018.00340 DOI=10.3389/fmicb.2018.00340 ISSN=1664-302X