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Evaluation of various denture cleansers on color stability and surface topography of polyetherketoneketone, polyamide, and polymethylmethacrylate.
Microscopy Research and Technique ( IF 2.5 ) Pub Date : 2020-08-05 , DOI: 10.1002/jemt.23558
Ozgun Yusuf Ozyilmaz 1 , Ozlem Kara 1 , Ceyda Akin 2
Affiliation  

The aim of this study was to evaluate the effect of sodium perborate effervescent tablets and citric acid solution on the color stability and surface topography of a new generation of high‐performance polymer polyetherketoneketone (PEKK), thermoinjection‐molded polyamide, and polymethylmethacrylate (PMMA). Fifty disc‐shaped specimens were fabricated (10 mm × 2 mm) from PEKK (P group), polyamide (D group), and PMMA (M group). These groups were divided into five subgroups (n = 10) according to the storage media. The test groups were immersed in the following solutions: distilled water (Control), Corega, Protefix, Perlodent, and Curaprox. The color stability values (ΔE) were measured using a spectrophotometer before and after immersion in distilled water and four different denture cleansers for 8 hr/day for 140 days. Topography alterations after treatments were assessed with scanning electron microscopy (SEM). Data were analyzed by one‐way analysis of variance (ANOVA) followed by Tukey's Honest Significant Difference test. The p < .05 was considered significant. All denture cleansers increased the ΔE values relative to the baseline values in the M, D, and P groups (p < .05). The Perlodent denture cleanser demonstrated the highest ΔE value in all groups, which was unacceptable. Curaprox denture cleanser showed the lowest ΔE value in the M and D groups (p < .05). Curaprox in all groups showed a ∆E value less than 3.7. For patients who have PEKK‐ and polyamide‐based prosthesis, the use of citric acid‐based cleansers may be more recommended than sodium perborate‐containing cleansers because of its clinically acceptable color changes on polymers in terms of color stability.

中文翻译:

各种假牙清洁剂对聚醚酮酮、聚酰胺和聚甲基丙烯酸甲酯的颜色稳定性和表面形貌的评估。

本研究的目的是评估过硼酸钠泡腾片和柠檬酸溶液对新一代高性能聚合物聚醚酮酮 (PEKK)、热注射成型聚酰胺和聚甲基丙烯酸甲酯 (PMMA) 的颜色稳定性和表面形貌的影响。 . 由 PEKK(P 组)、聚酰胺(D 组)和 PMMA(M 组)制成 50 个盘形样品(10 mm × 2 mm)。这些组根据存储介质分为五个子组 ( n = 10)。将测试组浸入以下溶液中:蒸馏水(对照)、Corega、Protefix、Perlodent 和 Curaprox。颜色稳定性值(ΔE) 在浸入蒸馏水和四种不同的假牙清洁剂之前和之后使用分光光度计测量 8 小时/天,持续 140 天。用扫描电子显微镜 (SEM) 评估处理后的形貌改变。通过单因素方差分析 (ANOVA) 和 Tukey 诚实显着差异检验分析数据。在p  <0.05被认为是显著。相对于 M、D 和 P 组的基线值,所有义齿清洁剂都增加了 Δ E值 ( p  < .05)。Perlodent 义齿清洁剂在所有组中都表现出最高的 Δ E值,这是不可接受的。Curaprox 义齿清洁剂在 M 组和 D 组中表现出最低的 Δ E值(p < .05)。Curaprox 在所有组中都显示出小于 3.7的 ∆ E值。对于具有 PE​​KK 和聚酰胺基假体的患者,可能更推荐使用基于柠檬酸的清洁剂,而不是含过硼酸钠的清洁剂,因为就颜色稳定性而言,其在聚合物上的临床可接受颜色变化。
更新日期:2020-08-05
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