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首页> 外文期刊>European journal of oral sciences >Dentin surface treatment using a non-thermal argon plasma brush for interfacial bonding improvement in composite restoration.
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Dentin surface treatment using a non-thermal argon plasma brush for interfacial bonding improvement in composite restoration.

机译：使用非热氩等离子体刷对牙本质进行表面处理，以改善复合修复体中的界面结合。

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The objective of this study was to investigate the treatment effects of non-thermal atmospheric gas plasmas on dentin surfaces used for composite restoration. Extracted unerupted human third molars were prepared by removing the crowns and etching the exposed dentin surfaces with 35% phosphoric acid gel. The dentin surfaces were treated using a non-thermal atmospheric argon plasma brush for various periods of time. The molecular changes of the dentin surfaces were analyzed using Fourier transform infrared spectrophotometry/attenuated total reflectance (FTIR/ATR), and an increase in the amount of carbonyl groups was detected on plasma-treated dentin surfaces. Adper Single Bond Plus adhesive and Filtek Z250 dental composite were applied as directed. To evaluate the dentin/composite interfacial bonding, the teeth thus prepared were sectioned into micro-bars and analyzed using tensile testing. Student-Newman-Keuls tests showed that the bonding strength of the composite restoration to peripheral dentin was significantly increased (by 64%) after 30 s of plasma treatment. However, the bonding strength to plasma-treated inner dentin did not show any improvement. It was found that plasma treatment of the peripheral dentin surface for up to 100 s resulted in an increase in the interfacial bonding strength, while prolonged plasma treatment of dentin surfaces (e.g. 5 min) resulted in a decrease in the interfacial bonding strength.
机译：这项研究的目的是研究非热大气等离子体对用于复合修复的牙本质表面的治疗效果。通过去除牙冠并用35％的磷酸凝胶蚀刻暴露的牙本质表面来制备未拔出的人类第三磨牙。使用非热大气氩等离子体刷对牙本质表面进行不同时间的处理。使用傅里叶变换红外分光光度法/衰减全反射率（FTIR / ATR）分析牙本质表面的分子变化，并在经过等离子体处理的牙本质表面检测到羰基数量的增加。按照说明使用Adper Single Bond Plus粘合剂和Filtek Z250牙科复合材料。为了评估牙本质/复合材料的界面粘结，将由此制备的牙齿切成微条，并使用拉伸测试进行分析。 Student-Newman-Keuls测试表明，等离子处理30 s后，复合修复体与周围牙本质的粘合强度显着提高（提高了64％）。但是，与经等离子体处理的内部牙本质的粘合强度没有显示任何改善。发现对牙本质周边表面的等离子体处理长达100秒导致界面结合强度的增加，而对牙本质表面的长时间等离子体处理（例如5分钟）导致界面结合强度的降低。

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