用不同浓度的亚甲基蓝和甲苯胺蓝进行光动力疗法以及用水和次氯酸盐冲洗后人工诱发的初期龋齿的颜色变化。

IF 1.9 Q2 DENTISTRY, ORAL SURGERY & MEDICINE International Journal of Dentistry Pub Date : 2024-08-30 eCollection Date: 2024-01-01 DOI:10.1155/2024/6624453
Sedighe Sadat Hashemikamangar, Mohammadreza Khadivi Moghadam, Mahtab Vahedi, Marzieh Rohaninasab, Nasim Chiniforush
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引用次数: 0

摘要

目的:本研究旨在评估人工诱发的初期龋齿在使用不同浓度的亚甲基蓝和甲苯胺蓝进行光动力疗法(PDT)后的颜色变化,同时使用水和次氯酸盐进行灌洗:用 42 颗健全的人类前臼齿制造两个人工初期龋损。一个病变位于颊面,另一个位于舌面。这些人工初期龋坏表面的颜色是用 CIE L ∗ a ∗ b ∗ 颜色系统确定的。然后根据 PDT 方法将牙齿随机分配到 12 个组(n = 7)。这些方法包括浓度为 50、100 和 150 µg/mL 的亚甲蓝,然后用水冲洗;浓度为 50、100 和 150 µg/mL 的亚甲蓝,然后用次氯酸盐溶液冲洗;浓度为 50、100 和 150 µg/mL 的甲苯胺蓝,然后用水冲洗;浓度为 50、100 和 150 µg/mL 的甲苯胺蓝,然后用次氯酸盐溶液冲洗。再次对牙齿进行比色,并计算由此产生的颜色变化。对激光波长、光吸收材料浓度和冲洗液对ΔE的影响进行了三方方差分析:结果表明,浓度为 100 µg/mL 的甲苯胺蓝光敏剂在用水和次氯酸盐灌洗时引起的颜色变化肉眼并不明显(ΔEwater = 3.04,ΔEhypochlorite = 2.00)。然而,在其他研究组中,肉眼可以感觉到颜色的变化(ΔE > 3.3)。使用水或次氯酸盐灌洗时,不同浓度的亚甲基蓝和甲苯胺蓝的ΔE 没有明显差异(P > 0.05)。亚甲基蓝和甲苯胺蓝的浓度为 100 µg/mL 时,在用水灌洗的情况下,两者之间存在明显差异(P=0.006)。此外,亚甲基蓝和甲苯胺蓝的浓度为 100 微克/毫升时,在次氯酸盐灌溉下也有显著差异(P=0.049)。然而,在用水或次氯酸盐灌洗的情况下,亚甲基蓝和甲苯胺蓝在其他浓度下没有明显差异(P > 0.05):总之,在使用浓度为 100 µg/mL 的甲苯胺蓝(光敏剂)进行光透射后,用水或 1%次氯酸盐溶液灌洗 5 秒钟,有初期龋齿的牙齿颜色不会发生明显变化。
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Color Changes in Artificially Induced Incipient Caries after Photodynamic Therapy with Different Concentrations of Methylene Blue and Toluidine Blue and Irrigation with Water and Hypochlorite.

Aim: The aim of this study was to assess the color changes in artificially induced incipient caries after photodynamic therapy (PDT) using different concentrations of methylene blue and toluidine blue, along with irrigation using water and hypochlorite.

Materials and methods: Forty-two sound human premolar teeth were used to create two artificial incipient carious lesions. One lesion was placed on the buccal surface and the other on the lingual surface. The color of these artificial incipient carious surfaces was determined using the CIE L a b color system. The teeth were then randomly assigned to 12 groups (n = 7) based on the PDT method. These methods included methylene blue with concentrations of 50, 100, and 150 µg/mL, followed by water irrigation, methylene blue with concentrations of 50, 100, and 150 µg/mL, followed by hypochlorite solution irrigation, toluidine blue with concentrations of 50, 100, and 150 µg/mL, followed by water irrigation, and toluidine blue with concentrations of 50, 100, and 150 µg/mL, followed by hypochlorite solution irrigation. The teeth underwent a colorimetry procedure again, and the resulting color changes were calculated. A three-way ANOVA was performed to analyze the effects of laser wavelength, concentration of the light-absorbing material, and irrigation solution on ΔE.

Results: The results showed that the color changes caused by toluidine blue photosensitizer at a concentration of 100 µg/mL, with both water and hypochlorite irrigation, were not noticeable to the naked eye (ΔEwater = 3.04, ΔEhypochlorite = 2.00). However, in the other study groups, the color changes were perceptible (ΔE > 3.3). There were no significant differences in ΔE between different concentrations of methylene blue and toluidine blue when using either water or hypochlorite irrigation (P  > 0.05). A significant difference was observed between methylene blue and toluidine blue at a concentration of 100 µg/mL with water irrigation (P=0.006). Additionally, a significant difference was found between methylene blue and toluidine blue at a concentration of 100 µg/mL with hypochlorite irrigation (P=0.049). However, no significant differences were observed between methylene blue and toluidine blue at other concentrations with either water or hypochlorite irrigation (P  > 0.05).

Conclusion: In conclusion, tooth color in teeth with incipient caries did not change significantly after PDT using toluidine blue (the photosensitizer) at a concentration of 100 µg/mL with either water or 1% hypochlorite solution irrigation for 5 s.

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来源期刊
International Journal of Dentistry
International Journal of Dentistry DENTISTRY, ORAL SURGERY & MEDICINE-
CiteScore
3.30
自引率
4.80%
发文量
219
审稿时长
20 weeks
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