Figure 1.

Diagram indicating the presence of antimicrobial peptides in saliva (blue), in gingival epithelium (pink), and in neutrophils (PMNs) migrating into the oral cavity via the gingival crevicular fluid. All of these sources of antimicrobial peptides may aid protection of the mucosa from bacterial infection and the tooth surface from caries.

Dale et al. BMC Oral Health 2006 6(Suppl 1):S13   doi:10.1186/1472-6831-6-S1-S13