An investigation of the effects of topical sunscreen protection products under natural weather conditions on intrinsic color stability in maxillofacial silicones.

IF 1 Q3 DENTISTRY, ORAL SURGERY & MEDICINE The Journal of Indian Prosthodontic Society Pub Date : 2023-10-01 DOI:10.4103/jips.jips_339_23
Melanie Bugden
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Abstract

Aim: The relatively short lifespan of maxillofacial prostheses (ranging from 3-24 months) is mostly a result of colour instability of silicone elastomers caused by ultraviolet (UV) radiation, requiring frequent remakes. An improvement in colour preservation could result in fewer remakes, thus saving time and money for both clinician and patient. In the quest for a suitable colour protection method, sunscreen protection products were considered; the most recent study on this subject was carried out in 1994, albeit using a low protection factor. The aim of this research was to determine if there is value in using topical sun protection products on extraoral silicone prostheses to prevent colour degradation.

Settings and design: This was an in vitro quantitative study.

Materials and methods: Three commercially available sunscreen products were studied, Riemann P20, Boots Soltan, and Garnier Ambre Solaire all with a sun protection factor of 50. A total of 144 silicone elastomer samples were produced using a Caucasian (light) shade 1.2 (n = 72) and dark skin shade 3.2 (n = 72) from the Technovent Ltd. Reality Shade range. Each shade group (n = 72) was divided into three groups to be subjected to outdoor weathering (n = 24), indoor (n = 24), and dark storage (n = 24). Within each environmental group, samples were divided into groups of six samples (n = 6) to receive the three sunscreens plus a control group with no sunscreen. The CIEL* a* b* formula was used to obtain the color measurements.

Statistical analysis used: One way ANOVA test and Tukey's HSD test for multiple comparisons was used to analyse the data.

Results: The ΔE values had changed for all samples throughout the aging process.

Conclusion: Soltan showed promising results in protecting the dark-shaded samples in the outdoor environment only.

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自然天气条件下局部防晒保护产品对颌面部硅酮固有颜色稳定性影响的研究。
目的:颌面部假体的使用寿命相对较短(从3-24个月不等),主要是由于紫外线(UV)辐射引起的有机硅弹性体的颜色不稳定,需要经常重新制造。颜色保存的改进可以减少重新制作,从而为临床医生和患者节省时间和金钱。在寻求合适的颜色保护方法时,考虑了防晒保护产品;关于这一主题的最新研究是在1994年进行的,尽管使用了较低的保护系数。这项研究的目的是确定在口腔外硅胶假体上使用局部防晒产品是否有价值,以防止颜色退化。设置和设计:这是一项体外定量研究。材料和方法:研究了三种市售防晒产品,Riemann P20、Boots Soltan和Garnier Ambre Solaire,它们的防晒系数均为50。使用Technovent有限公司Reality shade系列的高加索(浅色)遮光帘1.2(n=72)和深色皮肤遮光帘3.2(n=73)制备总共144个有机硅弹性体样品。每个遮荫组(n=72)被分为三组,分别进行室外风化(n=24)、室内风化(n=24)和暗储(n=24。在每个环境组中,样本被分为六组,每组六个样本(n=6),接受三种防晒霜和一个不使用防晒霜的对照组。CIEL*a*b*公式用于获得颜色测量值。使用统计分析:使用单向方差分析检验和Tukey的HSD检验进行多重比较来分析数据。结果:在整个老化过程中,所有样品的ΔE值都发生了变化。结论:Soltan仅在室外环境中对遮光样品的保护效果良好。
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来源期刊
The Journal of Indian Prosthodontic Society
The Journal of Indian Prosthodontic Society DENTISTRY, ORAL SURGERY & MEDICINE-
CiteScore
2.20
自引率
8.30%
发文量
26
审稿时长
20 weeks
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