A new polyisoprene-based light-curing denture soft lining material.
A new polyisoprene-based light-curing denture soft lining material.
复制标题
一种新型聚异戊二烯基光固化义齿软衬材料。
DOI：
10.1016/s0300-5712(03)00031-9
复制
发表时间：
2003
影响因子：
4.4
通讯作者：
S. Hirano
中科院分区：
文献类型：
--
作者：
I. Hayakawa;E. Keh;M. Morizawa;Gaku Muraoka;S. Hirano
目的本研究的目的是研究 Clearfit LC（一种新开发的基于聚异戊二烯的光固化衬里材料）的一些临床相关特性。其性能与其他四种商业产品进行了比较。 材料和方法使用五种软质衬里材料Clearfit LC、两种增塑丙烯酸树脂（Super-soft、Soften）和两种有机硅（Molloplast B、Sofreliner）来测定吸水性、溶解性、耐染色性、肖氏 A 硬度以及与义齿基托的剪切粘合强度。每个测试制作五个样本。对5种材料各试验结果进行单因素方差分析和α=0.05的Scheffe事后检验进行比较。结果各试验单因素方差分析显示5种材料之间差异显着（P<0.05）。 Clearfit LC 显示出中等的吸水性和溶解度（10.07；1.72μg/mm3）。它还在β-胡萝卜素/橄榄油溶液和速溶咖啡溶液中表现出最低的颜色变化（ΔE分别为1.19、5.48）。 Clearfit LC的剪切粘合强度为1.56MPa，未发现粘合失效。其肖氏A硬度值（56.2）位于丙烯酸树脂和有机硅两者之间。研究还发现，较软的材料容易发生内聚破坏。结论聚异戊二烯基衬材料表现出低吸水性和溶解性、中等柔软度、高抗沾污性以及与义齿基托树脂令人满意的剪切粘合强度。由于其光固化特性，它还为临床医生提供了充足的工作时间。作为衬里材料，这将是一个有吸引力的替代品。
ObjectivesThe purpose of this study was to investigate some clinically relevant properties of Clearfit LC, a newly developed polyisoprene-based light-curing lining material. Its properties were compared with those of other four commercial products.Materials and methodsFive soft lining materials, Clearfit LC, two plasticised acrylics (Super-soft, Soften) and two silicones (Molloplast B, Sofreliner) were used to determine water sorption, solubility, staining resistance, Shore A hardness and shear bond strength to denture base. Five specimens for each test were fabricated. The results of each test among the five materials were compared by one-way ANOVA and Scheffe's post-hoc test at α=0.05.ResultsOne-way ANOVA of each test showed that the differences among five materials were significant (P<0.05). Clearfit LC showed the intermediate water sorption and solubility (10.07; 1.72μg/mm3). It also showed the lowest color change in β-carotene/olive oil solution and instant coffee solution (ΔE=1.19, 5.48, respectively). The shear bond strength of Clearfit LC was 1.56MPa, and no adhesive failure was found. Its Shore A hardness value (56.2) was located between two acrylics and silicones. It was also found that the softer materials tend to failure cohesively.ConclusionThe polyisoprene-based lining material showed low water sorption and solubility, moderate softness, high staining resistance and satisfactory shear bond strength to denture base resin. It also provides clinicians sufficient working time due to its light-curing property. It would be an attractive alternative as a relining material.