A comparison of conventional sodium fluoride varnish and nano-sodium fluoride varnish regarding enamel microhardness of deciduous teeth: an in-vitro study.

IF 2.3 Q2 DENTISTRY, ORAL SURGERY & MEDICINE European Archives of Paediatric Dentistry Pub Date : 2024-08-31 DOI:10.1007/s40368-024-00942-2

F Jahanimoghadam, E F Gisour, M Ranjbar, P Amdjadi, T Dehesh, M Tabatabaei Rad

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Abstract

Introduction: Dental caries is the most common chronic disease worldwide, and various forms of fluoride are considered useful preventive tools. The production of nanoscale materials can significantly improve their mechanical and chemical properties. The present study compared the microhardness of primary tooth enamel after applying sodium fluoride varnish (conventional) and nano-sodium fluoride varnish.

Materials and methods: Sixty-eight sound canine teeth were selected in this experimental study. The teeth were mounted so that the buccal surface was exposed. A 3 × 3 mm square was obtained on the buccal surface of the crown of each tooth. Enamel surfaces were polished using sandpaper in the presence of water as a coolant. The samples were randomly divided into four groups (n = 17): G1, conventional 5% NaF; G2, 1% nano-NaF; G3, 5% nano-NaF; G4, control. The initial microhardness was measured. Before surface treatment with different fluoride compounds, the samples were placed in a demineralizing solution for two days, and the microhardness of all the samples was re-measured. Then G1, G2, and G3 were treated with the fluoride type specified for each group, and G4 was treated as a control (without treatment). Finally, pH cycling was applied, and the microhardness was measured again. Data were analyzed with SPSS 20, using Repeated measure ANOVA and post-hoc Tukey tests. P < 0.05 was considered significant.

Results: Repeated measure ANOVA showed that microharness of G1, G2, G3, and G4 was statistically significant different. Tukey tests showed that the microhardness of G1, G2, and G3 were not significantly different. However, these three groups exhibited significantly more microhardness than the control group (P = 0.024, P = 0.027, and P = 0.010).

Conclusion: There was no significant differences in enamel microhardness of deciduous teeth between conventional 5% NaF,1% nano-NaF and 5% nano-NaF.

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传统氟化钠清漆与纳米氟化钠清漆在乳牙釉质微硬度方面的比较：体外研究。

导言：龋齿是全球最常见的慢性疾病，各种形式的氟化物被认为是有用的预防工具。纳米级材料的生产可显著改善其机械和化学特性。本研究比较了涂抹氟化钠清漆（传统）和纳米氟化钠清漆后基牙釉质的微硬度：本实验研究选取了 68 颗健全的犬齿。将牙齿安装好，露出颊面。在每颗牙齿牙冠的颊面获得一个 3 × 3 毫米的正方形。在有水作为冷却剂的情况下，用砂纸打磨牙釉质表面。样本随机分为四组（n = 17）：G1，常规 5% NaF；G2，1% 纳米 NaF；G3，5% 纳米 NaF；G4，对照组。测量初始显微硬度。在使用不同氟化物进行表面处理之前，将样品放入脱矿物质溶液中两天，然后重新测量所有样品的显微硬度。然后用各组指定的氟化物类型处理 G1、G2 和 G3，将 G4 作为对照组（未处理）。最后，进行 pH 循环，再次测量显微硬度。数据用 SPSS 20 进行分析，采用重复测量方差分析和事后 Tukey 检验。P 结果：重复测量方差分析表明，G1、G2、G3 和 G4 的显微硬度在统计学上有显著差异。Tukey 检验表明，G1、G2 和 G3 的显微硬度差异不大。然而，这三个组的显微硬度明显高于对照组（P = 0.024、P = 0.027 和 P = 0.010）：结论：传统的 5%NaF、1% 纳米 NaF 和 5%纳米 NaF 在乳牙釉质显微硬度方面没有明显差异。

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来源期刊

European Archives of Paediatric Dentistry DENTISTRY, ORAL SURGERY & MEDICINE-

CiteScore

4.40

自引率

9.10%

发文量

期刊介绍： The aim and scope of European Archives of Paediatric Dentistry (EAPD) is to promote research in all aspects of dentistry for children, including interceptive orthodontics and studies on children and young adults with special needs. The EAPD focuses on the publication and critical evaluation of clinical and basic science research related to children. The EAPD will consider clinical case series reports, followed by the relevant literature review, only where there are new and important findings of interest to Paediatric Dentistry and where details of techniques or treatment carried out and the success of such approaches are given.