Modern Adhesive Dentistry: A review of literatures

Abstract

Adhesion (bonding) comprise a complex set of physical, chemical, and mechanical
mechanisms that allow the attachment and binding of one substance to another. An adhesive
is a material, frequently a viscous fluid, that joins two substrates together by solidifying and
transferring a load from one surface to the other. For good adhesion, close contact must exist
between the adhesive and the substrate (enamel or dentin). For better wetting and infiltration
to the dental substrate, the adhesive’s surface tension should be lower than the surface free
energy of the substrate