Akgul Nilgun, Yilmaz Merve Nur
Department of Restorative Dentistry, Faculty of Dentistry, Pamukkale University, Denizli, Turkey.
Department of Restorative Dentistry, Faculty of Dentistry, Bolu Abant Izzet Baysal University, Bolu, Turkey.
BMC Oral Health. 2024 Dec 27;24(1):1564. doi: 10.1186/s12903-024-05383-3.
To compare the translucency and contrast ratio of 13 different resin based restorative materials and to evaluate the effect of 2 different bleaching methods on the translucency and contrast ratio of these materials.
In this study, a total of 260 samples were prepared, 20 from each of 13 different dimethacrylate-based restorative materials. Then, each material group was divided into 4 subgroups. While two different bleaching methods (home and office) were applied to two of these groups, the other two groups were created as separate control groups for each bleaching group. After the bleaching process, Translucency Parameters (TP) and Contrast Ratio (CR) were calculated with a spectrophotometer. The data obtained were analyzed using two-way ANOVA and Tukey post-hoc tests (p < 0.05).
When the bleaching groups were compared in terms of the differences between the TP values in general, it was seen that the TP values decreased in all groups, but this decrease was least in Opalescence PF. In terms of materials, the greatest change in TP and CR values was seen in composite materials, while the least change was seen in hybrid CAD/CAM materials.
Within the limitations of this in vitro study, the effect of bleaching agents on the translucency and contrast ratio of restorative materials depends on the material used and the bleaching method applied. Composite-based materials have been found to be more risky in terms of bleaching. For this reason, the clinician should take this into consideration, especially when performing office bleaching on teeth with restorations.
比较13种不同树脂基修复材料的半透明性和对比度，并评估两种不同漂白方法对这些材料半透明性和对比度的影响。
在本研究中，共制备了260个样本，从13种不同的二甲基丙烯酸酯基修复材料中各取20个。然后，将每个材料组分为4个亚组。对其中两组应用两种不同的漂白方法（家庭漂白和诊室漂白），另外两组作为每个漂白组的单独对照组。漂白过程后，用分光光度计计算半透明参数（TP）和对比度（CR）。使用双向方差分析和Tukey事后检验分析所得数据（p < 0.05）。
总体上比较漂白组TP值之间的差异时，发现所有组的TP值均下降，但在Opalescence PF中下降最少。就材料而言，复合材料的TP和CR值变化最大，而混合CAD/CAM材料的变化最小。
在本体外研究的局限性内，漂白剂对修复材料半透明性和对比度的影响取决于所用材料和应用的漂白方法。已发现基于复合材料的材料在漂白方面风险更大。因此，临床医生在对有修复体的牙齿进行诊室漂白时应尤其考虑到这一点。
