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首页> 外文期刊>Cearmics >A STUDY OF THE EFFECT OF HYDROGEN SULFIDE ON CONVENTIONAL AND RESIN-MODIFIED GLASS-IONOMER DENTAL CEMENTS
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A STUDY OF THE EFFECT OF HYDROGEN SULFIDE ON CONVENTIONAL AND RESIN-MODIFIED GLASS-IONOMER DENTAL CEMENTS

机译：硫化氢对常规和树脂改性的玻璃-离子型牙科骨水泥作用的研究

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摘要

The effect of aqueous hydrogen sulfide on the properties of a conventional and a resin-modified glass-ionomer dental cement has been determined. Specimens were stored for 1 week in (i) H?S/glycerol/water, (ii) glycerol/water and (iii) pure water. After this time, the mass changes were determined, the pH of the solution was measured and the ion-content was determined, the latter by ICP-OES. There were significant differences in the mass uptake, pH change and ion release of the cements. Both showed significant gains in mass in both water and water/glycerol. In H?S /water/glycerol Ketac Cem (a conventional glass-ionomer) showed an insignificant mass loss, and Fuji Plus showed a minor significant gain. Both materials altered the pH of all storage solutions significantly. The pH of the H?S /water/glycerol medium increased whereas the pH of both pure water and water/glycerol went down. The ion release into glycerol/water was different from release into water, with sodium release being suppressed. The H?S medium showed almost no differences from glycerol/water, indicating that the H?S component has almost no effect on these cements. This leads to the conclusion that these cements can safely be used sub-gingivally even in patients where oral malodour suggests that reasonable amounts of H?S may be present.
机译：已经确定了硫化氢水溶液对常规的和树脂改性的玻璃离聚物牙科用胶粘剂性能的影响。将样品在（i）H 2 S /甘油/水，（ii）甘油/水和（iii）纯水中储存1周。此后，测定质量变化，测定溶液的pH并测定离子含量，后者通过ICP-OES测定。水泥的质量吸收，pH变化和离子释放存在显着差异。两者在水和水/甘油中均显示出明显的质量增加。在H2S /水/甘油中，Ketac Cem（一种常规的玻璃离聚物）的质量损失很小，而Fuji Plus的质量损失很小。两种材料均显着改变了所有存储溶液的pH值。 H 2 S /水/甘油介质的pH升高，而纯水和水/甘油的pH均下降。离子向甘油/水中的释放与向水中的释放不同，但钠的释放受到抑制。 H 2 S介质与甘油/水几乎没有差异，表明H 2 S组分对这些水泥几乎没有影响。由此得出的结论是，即使在口腔恶臭表明可能存在合理量的H2S的患者中，也可以安全地在龈下使用这些水泥。

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