评价不同窝沟封闭剂对牛牙釉质的微拉伸粘结强度。

Evaluation of microtensile bond strength of different fissure sealants to bovine enamel.

机构信息

Department of Paediatric Dentistry, Faculty of Dentistry, University of Ondokuz Mayıs, Samsun, Turkey.

出版信息

Aust Dent J. 2012 Mar;57(1):79-84. doi: 10.1111/j.1834-7819.2011.01639.x.

DOI:10.1111/j.1834-7819.2011.01639.x

PMID:22369562

Abstract

BACKGROUND

The aim of this study was to evaluate the microtensile bond strength (μTBS) of a new fissure sealant and compare it with conventional sealants which are applied to enamel alone, and also with self-etch and etch-and-rinse adhesives.

METHODS

Enamel specimens were prepared and randomly distributed into three groups according to fissure sealant (Aegis, Helioseal F, Helioseal Clear). Each group was then subdivided according to adhesive system (Clearfil S3, Single Bond, no adhesive). A universal testing machine was used to measure μTBS, and data were analysed using one-way ANOVA and Tukey's tests.

RESULTS

μTBS values for all Aegis subgroups were significantly lower than for comparable Helioseal F and Helioseal Clear subgroups (p < 0.05). No differences were observed in μTBS of Helioseal F and Helioseal Clear (p > 0.05). In the Helioseal Clear group, μTBS values for Single Bond were significantly higher than for Clearfil S3 (p < 0.05). However, no significant differences were found between the μTBS values of the adhesive subgroups in the Aegis or Helioseal F groups (p > 0.05).

CONCLUSIONS

Sealant μTBS values may be affected by material content. The addition of an adhesive may improve μTBS values of sealant to enamel.

摘要

背景

本研究旨在评估一种新型窝沟封闭剂的微拉伸粘结强度（μTBS），并将其与单独应用于牙釉质的传统封闭剂进行比较，同时也与自酸蚀和酸蚀-冲洗粘结剂进行比较。

方法

制备牙釉质标本，并根据窝沟封闭剂（Aegis、Helioseal F、Helioseal Clear）将其随机分为三组。然后，根据粘结系统（Clearfil S3、Single Bond、无粘结剂）将每组进一步细分。使用万能试验机测量 μTBS，并使用单因素方差分析和 Tukey 检验对数据进行分析。

结果

所有 Aegis 亚组的 μTBS 值均明显低于可比的 Helioseal F 和 Helioseal Clear 亚组（p < 0.05）。Helioseal F 和 Helioseal Clear 的 μTBS 值无差异（p > 0.05）。在 Helioseal Clear 组中，Single Bond 的 μTBS 值明显高于 Clearfil S3（p < 0.05）。然而，在 Aegis 或 Helioseal F 组中，粘结剂亚组的 μTBS 值之间没有发现显著差异（p > 0.05）。