Acquired Enamel Pellicle and Bacterial Cell Surface Interface (AEP-Bacterial Interface)

The Acquired Enamel Pellicle (AEP) is a thin, acellular film composed of salivary proteins, glycoproteins, and lipids that forms rapidly on the tooth surface upon exposure to saliva. It serves as a critical biological interface, acting as a protective barrier against acid demineralization while simultaneously providing specific receptors for the attachment of oral bacteria. The interaction between the bacterial cell surface (specifically bacterial adhesins) and the pellicle proteins, such as statherin and proline-rich proteins, is the foundational step in the formation of dental plaque and subsequent biofilms. In clinical pharmacology, this interface is targeted by anti-plaque agents and mouthrinses designed to either prevent bacterial docking or disrupt the integrity of the pellicle-bacterial bond. Understanding this target is essential for developing therapies for dental caries and periodontal diseases, as it represents the primary site of pathogenic colonization in the oral cavity.

Other names

Acquired enamel pellicleDental pellicleSalivary pellicleBacterial-pellicle interfaceBiofilm-enamel junction

Inhibition of bacterial adhesion to the pellicle, disruption of the acquired enamel pellicle structure, and bactericidal activity against early colonizers.