Adhesive Systems as an Alternative Material for Color Masking of White Spot Lesions: Do They Work?

作者：Farias de Lacerda Ana Julia; da Silva Avila Daniele Mara; Borges Alessandra Buhler; Pucci Cesar Rogerio; Gomes Torres Carlos Rocha

来源：Journal of Adhesive Dentistry, 2016, 18(1): 43-50.

DOI：10.3290/j.jad.a35518

• tooth color
• caries infiltration
• white spot lesion
• minimally invasive dentistry
• esthetic dentistry

Purpose: To evaluate the color masking effect of infiltration treatment of artificial white spot lesions (AWSL) using a dedicated resin in comparison to different adhesive systems.
Materials and Methods: Enamel/dentin specimens were obtained from bovine incisors and baseline color was assessed using a reflectance spectrophotometer, according to the CIE L*a*b* system. AWSL were produced using a buffered acid solution and a new color evaluation was performed. The specimens were divided into 8 groups: control: artificial saliva changed daily for 7 days; IC: infiltrating resin Icon; EC: EquiaCoat; FU: Futurabond U; SBU: Single Bond U; SBMP: Scotchbond MP; OB: OptibondFL; BF: Bioforty. After the treatments, the color was evaluated again and the values for the parameters L (change in lightness), a (change in chroma), b (change in hue), and E (general color difference) were calculated in relation to baseline. Data were analyzed by one-way ANOVA and Tukey's tests.
Results: After treatment, ANOVA showed significant differences for all parameters (p = 0.001). Tukey's test showed the greatest lightness reduction (L) for the IC group, followed by EC, FU, and SBU. The SBMP, OB, and BF groups were similar to the control. For b values, all groups showed differences in relation to the control, with no differences between them. In relation to E, all groups showed differences in relation to the control (E = 5.24), with no significant differences between them. E values after application of all resinous materials were lower than the threshold of 3.7, indicating effective color masking.
Conclusions: The Icon infiltrant produced a greater lightness reduction of white lesions (L). For general color difference (E), all the resinous materials tested were able to color mask artificial AWSL.

• 出版日期2016