Which adhesive method is associated with achieving the best retention for a fiber post?

The method of utilizing etch and rinse techniques with self-cure resin cement is considered to achieve the best retention for a fiber post due to the mechanical and chemical bonding advantages it provides. In this approach, the tooth structure is first prepared and etched, which creates micro-roughness on the enamel and dentin surfaces. This improved surface area allows for better penetration of the resin cement into the dentin tubules and enhances the bonding surface, leading to a stronger mechanical interlock.

The etch and rinse technique also employs bonding agents that contain functional monomers designed to create chemical bonds with the mineral constituents of dentin. This chemical bonding, in conjunction with the mechanical retention created by the etched surface, contributes significantly to the overall bond strength. When a self-cure resin cement is used in this context, it allows for polymerization that complements the adhesive properties established during the etching and rinsing process.

In contrast, other adhesive methods may not provide the same level of bonding efficiency. For instance, using only self-cure resin cement does not capitalize on the benefits of etching, resulting in potentially weaker adhesion. Applying dual-cure resin cement is more versatile but does not necessarily exploit the advantages of surface preparation to the same extent as the etch