| 钱小宇,徐欣蕊,黄慧.刷牙对可切削复合树脂陶瓷表面粗糙度的影响[J].口腔材料器械杂志,2020,29(3):128-132,137. |
| 刷牙对可切削复合树脂陶瓷表面粗糙度的影响 |
| Effects of toothbrushing on the surface roughness of CAD/CAM resin-ceramic blocks |
| 投稿时间：2020-02-17 修订日期：2020-05-04 |
| DOI：10.11752/j.kqcl.2020.03.02 |
| 中文关键词: 刷牙 可切削复合树脂陶瓷 粗糙度 |
| 英文关键词:Toothbrushing CAD/CAM resin-ceramic Roughness |
| 基金项目:国家自然科学基金面上项目（编号：81771105） |
| 作者 | 单位 | E-mail | | 钱小宇 | 上海交通大学医学院附属第九人民医院口腔医学院口腔修复科, 上海市口腔医学重点实验室, 上海市口腔医学研究所, 国家口腔疾病临床医学研究中心, 上海 200011 | | | 徐欣蕊 | 上海交通大学医学院附属第九人民医院口腔医学院口腔修复科, 上海市口腔医学重点实验室, 上海市口腔医学研究所, 国家口腔疾病临床医学研究中心, 上海 200011 | | | 黄慧 | 上海交通大学医学院附属第九人民医院口腔医学院口腔修复科, 上海市口腔医学重点实验室, 上海市口腔医学研究所, 国家口腔疾病临床医学研究中心, 上海 200011 | huanghui_68@126.com |
|
| 摘要点击次数: 629 |
| 全文下载次数: 592 |
| 中文摘要: |
| 目的 研究刷牙对可切削复合树脂陶瓷材料表面粗糙度的影响。方法 以可切削复合树脂陶瓷U（Ultimate）、H（Hyramic）、E（Enamic）、G（Grandio）为实验组，以复合树脂Z（Z350XT）和玻璃陶瓷M（Vita MarkⅡ）为对照组，分别在其刷牙前及刷牙50 000次后测量表面粗糙度（Ra），并通过扫描电子显微镜观察表面形貌。结果 刷牙前M组（0.021±0.004 μm）与G组（0.026±0.003 μm）平均表面粗糙度Ra值较小，其余各组Ra值在0.031~0.033 μm之间。刷牙后各组表面粗糙度均增加，且刷牙前后的粗糙度差异具有统计学意义（P<0.05）。刷牙后，M组（0.033±0.007 μm）与G组（0.034±0.005 μm）的Ra值最小、U组（0.044±0.010 μm）与E组（0.043±0.004 μm）次之、H组（0.051±0.007 μm）与Z组（0.055±0.005 μm）最大。SEM显示玻璃陶瓷M组刷牙后孔隙变大。其余各组复合树脂陶瓷材料刷牙后均出现脱颗粒现象。结论 刷牙会增加各类复合树脂陶瓷材料的表面粗糙度。G组耐磨性最高，与玻璃陶瓷相似。H组耐磨性最低，与树脂相似，E组及U组的耐磨性介于陶瓷与树脂之间。 |
| 英文摘要: |
| Objective The aim of this study was to investigate the effect of toothbrushing on the surface roughness of different CAD/CAM resin-ceramic blocks. Methods Four kinds of CAD/CAM resin-ceramic (Ultimate, Hyramic, Enamic, Grandio),Vita MKⅡ and Z350 were included in this study. The surface roughness (Ra) of six kinds of materials were examined before and after toothbrushing for 50000 cycles. The data were statistically analyzed. Results After toothbrushing, the surface roughness increased (P<0.05). The Ra of M (0.033±0.007 μm) and G(0.034±0.005 μm) were the lowest. H(0.051±0.007 μm) and Z(0.055±0.005 μm) were the highest. U(0.044±0.010 μm) and E(0.043±0.004 μm) were between the both of them. The average surface roughness Ra value of group M (0.021±0.004 μm) and group G (0.026±0.003 μm) was the lowest before toothbrushing, and the Ra value of other groups was between 0.031~0.033 μm. The surface roughness of each group increased after toothbrushing, and there were statistical differences before and after toothbrushing (P<0.05). After toothbrushing, the Ra value of group M (0.033±0.007 μm) and group G (0.034±0.005 μm) was the lowest, followed by group U (0.044±0.010 μm) and group E (0.043±0.004 μm), while the Ra value of group H (0.051±0.007 μm) and group Z(0.055±0.005 μm) was the highest. SEM showed that the pores of the glass ceramic of group M became larger after toothbrushing. Particle debris appeared in the other resin-ceramic materials after toothbrushing. Conclusions The surface roughness increased after toothbrushing. Grandio and Vita MKⅡ presented excellent wear resistance properties after toothbrush abrasion, followed by Ultimate and Enamic, and then Hyramic and Z350. |
| 查看全文 查看/发表评论 下载PDF阅读器 |
| 关闭 |
|
|
|