This review provides information on biomarkers found in oral fluids relevant to oral and systemic disease, with emphasis on salivary molecules and their potential to provide screening diagnosis. The field of salivary diagnostics is rather new, but a growing number of reports have been published on the topic. Its emerging status is evident, in that many analytes have been investigated by a limited number of scientists; mainly in cross-sectional study designs. Accordingly, a few promising analytes have been identified. Before salivary diagnostics becomes established in clinical practice,...