Universal Applications

Compatibility with all self-/dual-cured resin cements and composites

The acidic nature of simplified adhesives (5th- and 7th-generations) can react with the basic catalyst components of chemically or dual-cured composites, resulting in significant loss of bond strengths. With OptiBond XTR, the adhesive layer contains balanced (neutral) chemistry. Therefore, OptiBond XTR can be used with all self-cured or dual cured resin cements, composites, and core build-up materials.

Since composite resins are hydrophobic (resistant to water), it is important for the adhesive layer to maintain a hydrophobic nature to maximize compatibility and sealing between the adhesive and composite interface. The OptiBond XTR Adhesive is highly hydrophobic, thus providing the ideal interface with composite resin material—for better sealing, improved bond durability, and maximum compatibility versus less-hydrophobic adhesives. Thus, OptiBond XTR can be used for both direct and indirect restorative procedures.

Enhanced Self-Etching Primer

Self-etch bonding agents are mildly or weakly acidic. Therefore, they are incapable of effectively etching enamel. This may compromise bond strengths and result in marginal staining or veneer debonding.

OptiBond XTR solves that problem by employing Kerr’s proprietary Ternary Solvent System. This unique system—comprised of water, acetone, and ethyl alcohol—advances the OptiBond XTR Primer’s mechanism of action (MOA) to dramatically improve enamel etching.

Optimized Adhesive

Efficient polymerization of the OptiBond XTR Adhesive allows for the production of dense cross-linking of resin polymers, creating a strong and well defined adhesive layer as well as hybrid layer. The SEM photograph below shows the composite, adhesive, and dentin bonding interfaces. Excellent monomer penetration into dentinal tubules is well defined, with very long resin tags. Higher magnification shows vigorous penetration into the lateral tubules as well as a uniform hybrid layer.

This yields high bond strength, provides a durable bond between the adhesive and dentin substrates, and effectively protects against microleakage and sensitivity.

Reduced Film Thickness