Eliminating Shade Matching Challenges in Class V Restorations
With OMNICHROMA’s unique ability to adapt to any natural tooth color, dentists can focus on refining their technique instead of worrying about shade selection.
Many dentists find it difficult to match the shade of composite to the gradient color of a Class V restoration. What if shade selection concern can be eliminated, so your only focus is on refining your technique to achieve seamless restorations? I have been successfully using Tokuyama Dental’s groundbreaking composite, OMNICHROMA, on Class Vs for more than 5 years. The single-shade composite adapts to the color of the natural tooth, leaving you more time to spend on the dentistry and less time sifting through your armamentarium.1
A Class V composite restoration is one of the most reliable and consistent uses for OMNICHROMA. The excellent handling properties and the ability to obtain a great surface polish is a major bonus. Following is a case study of Class V abrasion/abfraction lesions on teeth #28 and #29 (Figure 1 A—D).2
When preparing the restoration, the surface debris needs to be removed and the highly polished tooth surface needs to be roughed up with a bur to ensure a better bond. A sharp edge on the outer tooth surface will leave a visible margin and will also be less retentive.
Now that the tooth has been properly prepared, the tooth preparation is acid etched, going slightly beyond the facial margin. Rinse off the acid etch with a healthy amount of water. Next, apply two thin coats of bonding agent, such as Tokuyama’s Bond Force and light cure.
After light curing, apply OMNICHROMA. Make sure the gingival margin is sealed and there is a smooth continuous surface of composite. You will immediately notice that OMNICHROMA looks more opaque than the surrounding tooth surface. However, after light curing, something amazing happens — the composite material takes on the shade of the natural tooth.
Once the restoration is fully light cured, a flame tip diamond bur on a high-speed handpiece is used to finish the gingival margin and contour the surface anatomy. Next, a small coarse disc is used to create a smooth and regular surface. A rubber cup works to smooth the surface more and finally a polishing brush creates a highly polished surface. The color match is fantastic on this class V composite restoration.3-5
Incorporating OMNICHROMA into Class V restorations has proven to be an effective solution for eliminating shade matching concerns while enhancing the ease and consistency of the procedure. Its ability to seamlessly blend with the natural tooth color, coupled with excellent handling and polishability, makes OMNICHROMA a reliable choice for achieving esthetically superior results.
References
- Peyton J. Class V cervical restorations that just blend into the tooth using OMNICHROMA. Available at dentistrytoday.com/class-v-cervical-restorations-that-just-blend-into-the-tooth-using-omnichroma. Accessed October 3, 2024.
- Peyton JH. Direct resin veneer technique using a single shade of composite. Available at dentistrytoday.com/direct-resin-veneer-technique-using-a-single-shade-composite. Accessed October 3, 2024.
- Fahl N. Mastering composite artistry to create anterior masterpieces, part 1. Available at fahl.com.br/wp-content/uploads/2019/08/Mastering-Composite-Artistry-to-Create-Anterior-Masterpieces-Part-1.pdf. Accessed October 3, 2024.
- Miyasaki M. OMNICHROMA from Tokuyama. Decisions in Dentistry. 2019;5(8):42.
- Hatkar P. Preserving natural tooth structure with composite resin. Available at https://aacd.com/proxy.php?filename=files/Students%20and%20Faculty/26-3hatkar.pdf. Accessed October 3, 2024.
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From Decisions in Dentistry. October/November 2024;10(6):22.
