Regional bond strengths of self-etching/self-priming adhesive systems.
Regional bond strengths of self-etching/self-priming adhesive systems.
复制标题
自蚀刻/自底漆粘合剂系统的区域粘合强度。
DOI：
10.1016/s0300-5712(97)00046-8
复制
发表时间：
1998
影响因子：
4.4
通讯作者：
Pashley,D
中科院分区：
文献类型：
--
作者：
Yoshiyama,M;Matsuo,T;Ebisu,S;Pashley,D
本研究的目的是测量牙釉质和牙本质不同部位的局部拉伸粘结强度(TBS)，并用扫描电子显微镜观察两种市售自酸蚀/自吸粘接系统的树脂-牙本质界面。对12颗拔除的人尖牙行TBS测量，另外4颗牙作扫描电子显微镜(SEM)观察。从前牙表面去除外牙釉质和牙本质，形成长洞，形成中牙本质，从牙冠中部延伸至根尖。将Clearfi Liner Bond 2(Lb 2，Kuraray)或Fluoro Bond(FB，Shofu)粘结到表面，并用树脂复合材料覆盖。将树脂粘结的牙齿与牙齿长轴成直角连续切片，修剪粘结表面，得到1mm2的粘结横截面积，用于TBS试验。Lb2和Fb在冠根牙本质、颈根牙本质和中根牙本质中显著高于牙釉质和根尖根牙本质。扫描电子显微镜显示，冠牙本质、颈根牙本质和中根牙本质的混合层厚度约为1μm，而根尖牙本质的混合层厚度小于0 5μm。这些结果表明，自酸蚀/自充填系统通过形成较薄的混合层和过渡层，使冠、颈和中根牙本质具有良好的粘附性，但与牙釉质和根尖牙本质的粘附性有待提高。
The purpose of this study was to measure the regional tensile bond strengths (TBS) at various portions of human tooth enamel and dentin, and to observe the resin–dentin interfaces of two commercially available self-etching/self-priming adhesive systems by scanning electron microscopy (SEM). Twelve extracted human cuspid teeth were used to measure TBS and four additional teeth were used for scanning electron microscopy (SEM). Outer enamel and dentin were removed from the labial tooth surfaces to form a long cavity preparation into middle dentin extending from the mid-crown to the apex of the root within the same tooth. Either Clearfil Liner Bond 2 (LB 2, Kuraray) or Fluoro Bond (FB, Shofu) was bonded to the surfaces, and covered with resin-composite. The resin-bonded teeth were serially sliced at right angles to the long axis of the tooth, and the bonded surfaces were trimmed to give a bonded cross-sectional surface area of 1mm2for TBS tests. LB 2 and FB showed significantly higher TBS in coronal, cervical and middle root dentin than that in enamel and apical root dentin. SEM showed that the thickness of the hybrid layer of both systems was about 1.0μm in coronal, cervical and middle root dentin, and less than 0.5μm in apical root dentin. These results suggested that the self-etching/self-priming systems produce good adhesion in coronal, cervical and middle root dentin by creating thin hybrid and transitional layers, but bonding to enamel and apical root dentin should be improved.
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影响因子：
1.4
作者：
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影响因子：
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影响因子：
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作者：
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通讯作者：
Pashley,DH
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影响因子：
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