Ultra-Etch etchant 35% phosphoric acid solution features ideal viscosity, facilitates precise placement and superior control. It is self-limiting in its depth of etch (average depth of 1.9 μm with 15-second etch),1 creating an etch pattern that adhesives can penetrate for increased bond strength. Studies demonstrate Ultra-Etch etchant’s unique self-limiting chemistry on dentin creates an optimal surface to receive resin.2 Though Ultra-Etch etchant is viscous, it can penetrate into the smallest fissures or occlusal surfaces due to physical and chemical properties that promote capillary action. Its ideal viscosity maintains a layer that is thick enough to prevent premature drying.
Ultra-Etch etchant is indicated for use on dentin and enamel to create optimal bonding surfaces. It can also be used to remove porcelain salts prior to silane of bonding agent.
- Self-limiting1 on dentin
- Penetrates smallest fissures and won’t run on a vertical surface
- Precise placement
- Rinses cleanly—leaves no residue
Note: Do not use phosphoric etchant on metals or zirconia, as this will reduce bond strength.
- Perdigão J, Lambrechts P, Van Meerbeek B, Vanherle G. A FE-SEM study of the ultra-morphology of etched dentin [IADR abstract 2982]. J Dent Res. 1996;75(suppl):390.
- Perdigão J, Lambrechts P, Van Meerbeek B, Vanherle G. A field emission SEM study of dentin etched with different phosphoric acid compositions and/or concentrations. Katholieke Universiteit Leuven: Leuven, Belgium; 1994.