Effects of Hybrid Coat on shear bond strength of five cements: an in vitro study.
Effects of Hybrid Coat on shear bond strength of five cements: an in vitro study.
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混合涂层对五种水泥剪切粘合强度的影响：体外研究
DOI：
10.4047/jap.2017.9.6.447
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发表时间：
2017-12
期刊：
影响因子：
--
通讯作者：
Feng YZ
中科院分区：
文献类型：
--
作者：
Guo Y;Zhou HD;Feng YZ
评价复合涂层的密封性能及其对5种牙本质表面胶结物剪切结合强度的影响。在使用混合涂层之前，对6颗前磨牙进行预处理以暴露牙本质表面。用扫描电镜（SEM）观察牙本质表面的显微特征。然后将40颗前磨牙纵向切片，80颗半切片分为对照组（未处理）和研究组（Hybrid Coat处理）。合金修复用五种不同的粘结剂粘接在牙齿标本上。剪切粘接强度采用万能试验机测试。用立体显微镜观察了断裂模式和粘结界面。扫描电镜显示，杂化涂层完全堵塞了牙本质小管的管腔。混合涂层显著提高了树脂改性玻璃离聚体水泥（RMGIC）和树脂水泥（RC）的抗剪强度，但削弱了磷酸锌水泥（ZPC）、聚羧酸锌水泥（ZPCC）和玻璃离聚体水泥（GIC）的抗剪强度。混合涂层是一种有效的牙本质小管密封剂，与树脂或树脂改性玻璃离子水门合剂联合使用可用于修复体的附着。
To evaluate the sealing performance of Hybrid Coat and its influence on the shear bond strength of five dentin surface cements. Six premolars were pretreated to expose the dentin surface prior to the application of Hybrid Coat. The microscopic characteristics of the dentinal surfaces were examined with scanning electron microscopy (SEM). Then, 40 premolars were sectioned longitudinally, and 80 semi-sections were divided into a control group (untreated) and a study group (treated by Hybrid Coat). Alloy restoration was bonded to the teeth specimen using five different cements. Shear bond strength was measured by the universal testing machine. The fracture patterns and the adhesive interface were observed using astereomicroscope. SEM revealed that the lumens of dentinal tubules were completely occluded by Hybrid Coat. The Hybrid Coat significantly improved the shear bond strength of resin-modified glass ionomer cement (RMGIC) and resin cement (RC) but weakened the performance of zinc phosphate cement (ZPC), zinc polycarboxylate cement (ZPCC) and glass ionomer cement (GIC). Hybrid Coat is an effective dentinal tubule sealant, and therefore its combined use with resin or resin-modified glass ionomer cements can be applied for the prostheses attachment purpose.