Color suggestions:
■ Yellow: To deepen shading of 66-67-69-73-77-78.
■ Cervical blend: To deepen shading of 62-65-68-81-85; interproximal stain.
■ Blue, white: Incisal blend, decalcified areas.
■ Gray: To tone down shades and produce tetracycline shading; incisal stain.
■ Brown: Tea, coffee, and tobacco stains; surface erosions.
■ Pink: Root surfaces.
■ Color mixes: Yellow-brown, orange (yellow-pink), purple or violet (blue – pink).
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Technique: Blend the colors on a slab with brush of thinner; mix well. Bleed excess on slab before applying to restoration. For reapplication of the mixed color, add some thinner to the mix on the slab, bleed excess, and reapply to the restoration.
■ Fractures: To create a hairline fracture illusion, score the facial surface with a fine scalpel and scrape off the flashing. Place brown over the score line and wipe off the excess immediately. The brown will seep into and remain within the score line. If color does not penetrate, repeat with scalpel to make the line deeper. Do fracture lines before incisal staining.
■ Occlusal: To highlight grooves, pits, and fissures, bleed brown onto these surfaces with a fine brush or instrument.
■ Decalcification: Use a fine brush or instrument tip with white to create this effect. The spot should be matted and asymmetrical for best effect.
■ Tobacco and erosion-type effects: Use brown and/or concentrated cervical blend. Layer color for the most realistic effect.
■ Incisal: Delicately place blue or gray along incisal edge, perpendicular to the edge, unevenly in three or four strokes, to cover the entire width of the incisal area. It is best to dilute the gray with thinner for best control.
■ Root surfaces: Use a thin pink or cervical blend to create the effect.
■ Denture base staining: Use pink as is or concentrated for intense colors and/ or blend with white or blue on a mixing slab. Add thinner to the mix. Apply in quick, even strokes.
■ Lighten shades: Dilute white on a slab with thinner or glaze to reduce intensity. Apply one or two thin coats.
■ Tone down colors: Dilute gray with thinner to reduce intensity and place directly over (stained) surface, or first blend with stain on initial application.
To remove unwanted stains when shading is incorrect, grind it off with a rubber wheel and repolish the acrylic resin. If Minute Stain bottles solidify, fill bottles with thinner, let stand five days, and stir. Should liquid merely thicken (from solvent evaporation), just add thinner to the proper consistency. If the stain becomes too thin, add clear liquid to restore the body. Do not use monomer to dilute colors.
Shake bottles gently to produce light, translucent colors. It is not necessary to disperse all pigments in the bottle. Doing so could create an intense, concentrated, and unnatural stain.