Clinician's Spotlight

Pink Opaque

Over the years, ceramic technicians have used pink to warm up cold, unaesthetic grayish discoloration. Cosmedent, Inc., has developed a new pink opaque that treats the darkly stained dentition reliably and with natural results. Using pink opaque before applying the composite restorative material neutralizes gray tetracycline stains and results in a warmer, more natural color. Using other opaques, such as white, A1, or A2, and then overlaying with the composite will usually result in a decrease in value. Even when the color is correct, the result will still have a gray cast.

Darkly stained teeth have always been difficult to treat cosmetically. Tetracycline-stained dentition and the single, non vital tooth are among the most difficult teeth to treat esthetically with minimally invasive procedures such as composite resin veneers or porcelain laminates.

Technique

  • Prepare, etch, wash, and apply the bonding adhesive.
  • Apply a thin layer of Creative Color(Cosmedent, Inc.) clear liquid resin to the entire veneer surface, gently air-thin, and polymerize. The creation of a smooth surface makes it easier to apply the opaque.
  • Apply pink opaque in a thin layer polymerize.
  • If dark areas shine through, gently add opaque to these areas to block it out. Apply just enough to do the job, and avoid overopaquing.
  • Apply a thin layer of Renamel MicroHybrid. The color should be pre selected to match the existing teeth or the new shade of the teeth.
  • After the Renamel MicroHybrid is placed and polymerized, slight opaquing may be required. Use the color of opaque that corresponds to the Renamel MicroHybrid chosen.
  • Overlay with Renamel body and incisal microfill. Finish and polish.

Case Application

The case shown in Figures 1 through 8 graphically illustrates the application of pink opaque before composite application. The neutralization of the dark stripes can be easily observed.

Figure 1 – Prepared tooth.

Figure 2 – Application of pink opaque with No. 1 Cosmedent brush.

Figure 3 – Blending opaque to the tooth structure.

Figure 4 – Opaque after polymerization.

Figure 5 – Light application of more opaque to block and blend the dark areas that remained after polymerization.

Figure 6 – Continued application and blending.

Figure 7 – Application of pink opaque completed on the upper left central incisor. All Undesirable color has been neutralized with out overopaquing.

Figure 8 – The four completed incisor veneers immediately postoperatively.

Using pink opaque before applying the composite restorative material neutralizes gray tetracycline stains and results in a warmer more natural color.

Other Applications

The same procedure can be used for pre opaquing after preparation and before placing porcelain veneers on tetracycline stained teeth, a gray non vital tooth, or teeth with metal posts and cores. Pink opaque is also effective in repairing the dark gingival discoloration often seen with porcelain and metal restorations.