Oral microbiology deals with the discomfort and distress caused by oral microbes. For example, tooth decay which is caused by bacteria is one of the most common human diseases which are painful. The role of oral microorganisms includes dental caries and periodontal disease. Bacteria occupy the ecological niche provided by both the tooth surface. However, a highly efficient innate host defense system monitors the bacterial colonization and prevents bacterial invasion of local tissues. The top open access journals are peer-reviewed scholarly journals of dentistry. The top open access journals are freely available on the public internet domain, allowing any end users to read, download, copy, distribute, prink, search or link to the full texts of the articles. These provide high quality, meticulously reviewed and rapid publication, to cater to the insistent need of the scientific community. These journals are indexed with all their citations noted. The top open access journals are indexed in MEDLINE, PUBMED, SCOPUS, COPERNICUS, CAS, EBSCO, and ISI.As the first Open Access journal in its field, the Journal of Oral Microbiology aims to be an influential source of knowledge on the aetiological agents behind oral infectious diseases. The journal is an international forum for original research on all aspects of 'oral health'. Articles which seek to understand 'oral health' through exploration of the pathogenesis, virulence, host-parasite interactions, and immunology of oral infections are of particular interest. However, the journal also welcomes work that addresses the global agenda of oral infectious diseases and articles that present new strategies for treatment and prevention or improvements to existing strategies.