Effect of carbonated beverages on the color stability of bulk and flowable composite resin

Abstract

Tooth discoloration is considered as one of the most common dental problems among people, and in dentistry, the most common cases are claimed after the restoration. Therefore, in this research, we aim to evaluate the effect of carbonated beverages on the color stability of bulk and flowable composite resin. For the study, 12 composite disc samples were made using the standard dimensions of 10 mm diameter and 2 mm thick. To find the color stability, we used a VITA Easyshade spectrophotometer. We used two different composites of bulk fill and flowable composite resin; the composite brand we used was Tetric ecom plus; as an immersion medium, we used two different carbonated beverages, and the chosen beverages were Appy Fizz and 7Up. 24-h and 7-day postimmersion color stability was evaluated. In the results of postimmersion, we have found the Delta E value for 24 h immersion of flowable and bulk fill composite as 5.8115 and 7.4378, respectively; similarly, the Delta E value for 7 days immersion of flowable and bulk fill composite was 9.9559 and 10.1028, respectively. Using the independent "t"-test, we found that the significance is 0.633 and 0.328, which was statistically not significant. In the present study, when immersed in Appy Fizz juice and 7Up juice, bulk fill composite resins have shown greater discoloration when compared to flowable composite resin material. Thus, the flowable composite resin samples were more color stable.

Keywords: Bulk fill composite; carbonated drinks; color stability; flowable composite; innovative measurement; spectrophotometer.

Figure 1

Vita Easyshade Spectrophotometer

Figure 2

The mean of flowable and bulk fill composite for 24 h and 7 days, identified via independent “t”-test. X-axis is type of composite with the duration of immersion, Y-axis is the mean value. Red color indicates the flowable composite of both 24 h and 7 days postimmersion. Blue color indicates the bulk fill composite of both 24 h and 7 days postimmersion. The mean values of flowable composite for 24 h and 7 days are 5.8115 and 9.9559, respectively. Similarly, the mean values of bulk fill for 24 h and 7 days were 7.4378 and 10.1028, respectively. There was a significance of 0.633 for 24 h and 0.328 for 7 days postimmersion