Characterization of a novel light-cured star-shape poly(acrylic acid)-composed glass-ionomer cement: fluoride release, water sorption, shrinkage, and hygroscopic expansion.

Characterization of a novel light-cured star-shape poly(acrylic acid)-composed glass-ionomer cement: fluoride release, water sorption, shrinkage, and hygroscopic expansion.
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新型光固化星形聚丙烯酸玻璃离子水门汀的表征:氟化物释放、吸水、收缩和吸湿膨胀。

DOI:
10.1111/j.1600-0722.2009.00694.x
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发表时间:
2009
影响因子:
1.9
通讯作者:
Xie,Dong
Xie,Dong
中科院分区:
医学4区
文献类型:
--
作者:
Zhao,Jun;Platt,JeffreyA;Xie,Dong

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本研究评估了新型实验性光固化玻璃离子水泥的氟化物释放、吸水性、固化收缩和吸湿膨胀。研究了甲基丙烯酸缩水甘油酯(GM)接枝、聚合物:水(P:W)和粉:液(P:L)比的影响。       使用市售Fuji II和Fuji II LC骨水泥作为对照进行比较。在测试之前,将所有样品在37°C的去离子水中调节。结果表明,实验水泥表现出较低的爆裂和缓慢的体积氟释放比富士II和富士II LC。实验水泥吸收更多的水比富士II和富士II LC由于其羟基和羧基官能团的内容。实验水泥的较低水扩散速率和降低的吸湿膨胀表明其具有高度交联的网络。Fuji II和Fuji II LC的收缩值(2.8%和4.7%)均远高于实验水泥(0.8%)。这种新型粘固剂似乎是一种临床上有吸引力的牙科修复剂,因为它不仅显示出上级机械强度,而且还显示出令人满意的物理性能。
This study evaluated the fluoride release, water sorption, curing shrinkage, and hygroscopic expansion of a novel experimental light‐cured glass‐ionomer cement. The effects of glycidyl methacrylate (GM) grafting, polymer : water (P : W) and powder : liquid (P : L) ratios were investigated. Commercial Fuji II and Fuji II LC cements were used as controls for comparison. All the specimens were conditioned in deionized water at 37°C before testing. The results demonstrated that the experimental cement showed lower burst and slower bulk fluoride release than Fuji II and Fuji II LC. The experimental cement absorbed more water than Fuji II and Fuji II LC as a result of its hydroxyl and carboxyl functional group content. The lower water‐diffusion rate and reduced hygroscopic expansion of the experimental cement suggest that it had a highly crosslinked network. Both Fuji II and Fuji II LC exhibited much higher shrinkage values (2.8% and 4.7%) than the experimental cement (0.8%). It appears that this novel cement will be a clinically attractive dental restorative because not only has it shown superior mechanical strength, it has also demonstrated satisfactory physical properties.
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发表时间: 2005-11-01
期刊: BIOMATERIALS
影响因子: 14
作者:
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期刊: Journal of Macromolecular Science, Part A
影响因子: --
作者:
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DOI: --
发表时间: 1984
期刊: Journal of dentistry research
影响因子: --
作者:
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DOI: 10.1023/a:1018587907243
发表时间: 1997
期刊: Journal of Materials Science: Materials in Medicine
影响因子: --
作者:
J. Nicholson
通讯作者: J. Nicholson
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DOI: 10.14219/jada.archive.1994.0135
发表时间: 1994
影响因子: 3.9
作者:
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通讯作者: Alan D. Wilson