| 胡征,罗志红.3种义齿基托材料抛光后表面粗糙度的比较研究[J].口腔材料器械杂志,2014,23(3):151-153. |
| 3种义齿基托材料抛光后表面粗糙度的比较研究 |
| A comparative study of surface roughness of three denture base resins after polishing |
| 投稿时间：2014-01-02 修订日期：2014-03-01 |
| DOI：10.11752/j.kqcl.2014.03.08 |
| 中文关键词: 聚甲基丙烯酸基托树脂 弹性义齿材料 不碎胶树脂 抛光 表面粗糙度 |
| 英文关键词:Heat-polymerized poly(methyl methacrylate) denture resin Valplast flexible denture resin Lucitone 199 denture resin Polishing SurfaceRoughness |
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| 中文摘要: |
| 目的研究3种义齿基托材料抛光前后的表面粗糙度度。方法选择聚甲基丙烯酸基托树脂(PMMA)、弹性义齿材料和不碎胶等3种义齿基托材料,将材料制成12 mm×12 mm×2 mm的标准试件,每种材料各20个,对试件进行打磨和抛光后,采用表面轮廓测量仪检测材料抛光前后的表面粗糙度,通过扫描电镜对材料表面形貌进行表面观察。结果 PMMA、弹性义齿材料和不碎胶抛光后表面粗糙度分别为(0.160±0.018)μm、(0.110±0.011)μm和(0.141±0.017)μm。弹性义齿材料和不碎胶的表面粗糙度低于PMMA(P<0.05),表面划痕也少于PMMA。结论弹性义齿材料和不碎胶更能获得抛光效果,表面粗糙度优于PMMA。 |
| 英文摘要: |
| Objective The aim of this study was to investigate the surface roughness of three different denture base resins before and after polishing. Methods Heat-polymerized poly(methyl methacrylate) (PMMA) denture resin, Valplast flexible denture resin and Lucitone 199 denture resin were selected for the investigation. 20 samples with dimensions of 12 mm×12 mm×2 mm were prepared from each material and polished using the conventional technique. The surface roughness of the sample before and after polishing was measured by a profilometer and the surface topography was observed by the scanning electron microscope (SEM). Results The surface roughness of heat-polymerized PMMA, valplast flexible denture resin and lucitone 199 denture resin after polishing were (0.160±0.018)μm, (0.110±0.011)μm and (0.141±0.017)μm respectively. The surface roughness and surface scratch of lucitone 199 denture resin and valplast flexible denture resin were lower than that of heat-polymerized PMMA (P<0.05). Conclusion Lucitone 199 denture resin and valplast flexible denture resin were far easier to obtain the polishing effect than heat-polymerized PMMA, and their the surface roughness was superior to that of heat-polymerized PMMA. |
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