![]() The physical, mechanical, and esthetic properties of resin composite result from its various components 2. Resin composites are resin-based materials containing several substances that intermingle without actually interacting chemically. Resin composite is the most frequently used tooth-colored filling material because of its excellent optical and mechanical properties 2, 3. Careful selection of materials is important for both the success of the restoration and for the patient’s satisfaction. Anterior dental fillings are a delicate procedure that requires skillful use of the artificial materials to esthetically mimic the remaining natural tooth structure. When receiving a tooth-colored restoration, all patients desire a color that blends as harmoniously as possible with the existing portion of the tooth to maintain both the natural look of the tooth as well as the effectiveness of its functions: masticating, clear speech, and normal face shape 1. The age of the restoration is one important factor influencing the color blending. The translucency of the restorative materials had a 68% positive correlation with their chameleon effect. Both high and low translucency materials exhibited a delayed chameleon effect for 3 years, except for the bulk fill resin composites. The high translucency materials exhibited an immediate chameleon effect, as did the bulk-fill resin composites, which are low translucency. The material with the highest translucency was flowable resin composite. Statistical analysis was conducted using Two-Way Repeated Measures ANOVA. The color was measured with CIE L*a*b* every 6 months. The restorative materials were filled into the wells. To analyze the chameleon effect, glass ceramic blocks were milled to create four wells in each block. Five types of resin composite in three different shades as well as one shade of conventional glass ionomer cement were fabricated into disks. The purpose of this study is to investigate the influence of restorative material translucency on the chameleon effect. ![]() The more chameleon effect that the restorative materials exhibit, the more natural looking restorations. Beyond just color, optical properties, particularly translucency, substantially influence the final appearance. ![]() Blending of artificial restoration materials to the natural tooth is challenging. ![]()
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