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Do not have excess stain on the brush when you apply to the resin surface. This could cause color runoff resulting in too-intense pigment buildup, visible brushstrokes, colors not drying uniformly or rippled, and grainy surfaces. Always bleed excess off onto the slab before applying color.
■ In cervical areas, it is best to apply in straight, even strokes in a vertical direction from cervical to gingival or cervical to incisal.
■ Apply stains quickly. Use a large (#1) brush (camel hair) for large surface areas to minimize brushstrokes. Use a fine brush for smaller, delicate areas.
■ To clean the slab, use a single-edge gem razor blade and scrape the surface clean. Use thinner to clean small, loose scraps from the slab surface.
■ Always clean the brush between each application of color and when finished and wipe it dry on a paper towel. If bristles have stiffened after the last use, simply dip into thinner for a few seconds to revive. Do not use inexpensive plastic brushes, since solvent will destroy them.
■ Allow surfaces to dry before reapplying additional or new colors. Doing so will help you avoid creating unwanted brush marks.
■ To remove excess (dried) color around small areas, such as along a fracture line or occlusal grooves and fissures, dip a clean brush in thinner, bleed the excess onto a slab, and immediately wash the affected area gently, until unwanted colors are brushed away. Wipe clean.
■ For concentrated or intense pigment, dip the brush into the bottom of the bottle.
■ If pigment streaks, simply blend on the slab until it is uniform.
■ If colors are too intense, blend on the slab with thinner of glaze, bleed excess off the brush, and apply.
These instructions provide more information than you will need as a makeup artist, unless you suddenly decide to go to dental school.
■ In this chapter, you were given a further understanding of silicone and coloring silicone intrinsically (internally) for translucence.
■ Silicone gel-filled appliances, or GFAs, filling molds, and removing appliances were also described in detail.
■ Foam latex and its properties were outlined in detail, as was the process for running foam latex.
■ Casting urethane (cold) foam was described, as was casting gelatin and foamed gelatin.
■ Casting dental acrylic was detailed step by step.
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This chapter also detailed the steps involved in painting and seaming (cleaning up) appliances and the procedure for painting teeth appliances.