Class 2 composite restoration

Finishing and Polishing
Finishing and defining of the facial anatomy were completed using a 48L bur (Brasseler USA). An egg-shaped finishing bur (H379 [Brasseler USA]) was used for lingual anatomy reproduction and for the occlusal adjustments. Polishing was carried out using Jiffy cups (yellow and white) (Ultradent Products), ending with a Jiffy brush (Ultradent Products). Interproximal polishing was done using Epitex (GC America) polishing strips.
The final clinical result (Figures 9 and 10) showcases the remarkable manner in which modern resin chemistry has allowed dentists to duplicate color and light-handling capabilities of natural teeth, while be confident of restorative longevity.

DISCUSSION
The resin utilized in this case (Vit-l-escence) is a microhybrid resin. It is indicated for use in both anterior and posterior teeth. The authors chose this resin because of the ease in shade matching to the natural tooth, the manner in which the material handles, and the finishing and polishing results that it produces. The shade tabs are fabricated out of the actual Vit-l-escence resin (other systems use dissimilar materials) and are divided into the individual enamel and dentin shades. This unique feature allows the clinician to directly match a resin shade tab to exposed dentin—and the same with the enamel.
Most of the information on shade matching is based on determining an average hue by placing a shade tab on the facial of the tooth to be restored or on the adjacent intact tooth. The problem with this method is that it does not take into account the individual contributions of the dentin and the enamel. On most fractures, the DEJ can be seen, which clearly separates the dentin and enamel components as well as indicates the thickness of each layer. The interplay between the thickness of each layer and how they change from gingival to incisal provides the polychromatic effect visually perceived by the human eye. The authors based their simplified layering technique on this unique anatomical characteristic of the tooth: thinner enamel at the gingival third and thicker enamel at the incisal third