Influence of the addition of chlorhexidine diacetate on bond strength of a high-viscosity glass ionomer cement to sound and artificial caries-affected dentin
Influence of the addition of chlorhexidine diacetate on bond strength of a high-viscosity glass ionomer cement to sound and artificial caries-affected dentin
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DOI：
10.1590/s1807-25772014000100001
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发表时间：
2014-01-01
影响因子：
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通讯作者：
Giro, Elisa Maria Aparecida
中科院分区：
文献类型：
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作者：
Becci, Ana Carolina de Oliveira;Marti, Luana Mafra;Giro, Elisa Maria Aparecida
简介：在玻璃离子水门汀（GIC）中加入洗必泰（CHX）的目的是提高其抗菌性能，但CHX可能会影响GIC与牙本质的结合。 目的：评价在高粘度GIC中加入不同浓度的双醋酸氯己定对GIC与健康牙本质和人工龋坏牙本质粘结的影响。 材料和方法：80人的第三磨牙，其上的一个区域的牙本质暴露的咬合面。一半的标本保持健全，另一半进行人工诱导龋齿。将CHX与GIC粉末以0.5%、1%和2%（w/w）混合。不含CHX的GIC用作对照。在每个牙本质表面上制作直径为1 mm、高为1 mm的样本。将样品在37 °C和100%湿度下保持24小时并进行微剪切测试。使用Kruskal-Wallis和Mann Whitney检验（α=0.05）分析结果。 结果：正常牙本质与龋坏牙本质的粘接强度无显著性差异（p>0.05）。对于两种基质条件，GIC、GIC+0.5%CHX和GIC+1%CHX组显示出统计学上相似的结合强度（p>0.05），并且高于GIC+2%CHX组（p
INTRODUCTION: The aim of adding chlorhexidine (CHX) to glass ionomer cements (GIC) is to improve their antibacterial property, but it may interfere with their bond to dentin. OBJECTIVE: To evaluate the influence of adding chlorhexidine diacetate at different concentrations to a high-viscosity GIC on its bond to sound and artificial caries-affected dentin. MATERIAL AND METHOD: Eighty human third molars were used, on which an area of dentin was exposed on the occlusal surface. Half of the specimens were kept sound and the other half were subjected to artificially induced caries. CHX was mixed with GIC powder at 0.5%, 1% and 2% (w/w). GIC without CHX was used as control. On each dentin surface a specimen measuring 1 mm in diameter and 1 mm high was made. The samples were kept at 37 °C and 100% humidity for 24 hours and subject to microshear testing. The results were analyzed using Kruskal-Wallis and Mann Whitney tests (α=0.05). RESULT: There was no significant difference between bond strength of sound and caries-affected dentin (p>0.05). For both substrate conditions, groups GIC, GIC+0.5% CHX and GIC+1% CHX showed statistically similar bond strength (p>0.05), and higher than that of GIC+2% CHX (p