Article Summary
冯 芃,金星爱,吕 晶,裴丽玲,孟祥玲,刘英群.两种牙体充填材料对乳牙边缘微渗漏及固化效率的体外研究[J].现代生物医学进展英文版,2019,19(5):872-875.
两种牙体充填材料对乳牙边缘微渗漏及固化效率的体外研究
Evaluation of Microleakage and Polymerization Efficiency in Primary Teeth with Two Different Restorative Material
Received:May 23, 2018  Revised:June 20, 2018
DOI:10.13241/j.cnki.pmb.2019.05.017
中文关键词: 纳米瓷有机充填材料  乳牙  微渗漏  固化效率
英文关键词: Composan LCM  Primary teeth  Micro-leakage  Curing efficiency
基金项目:黑龙江省自然科学基金项目(H2016037)
Author NameAffiliationE-mail
FENG Peng Department of The first hospital affiliated with Harbin medical university, Children's dental, Harbin, Heilongjiang, 150000, China 2416399683@qq.com 
JIN Xing-ai Department of The first hospital affiliated with Harbin medical university, Children's dental, Harbin, Heilongjiang, 150000, China  
LV Jing Department of The first hospital affiliated with Harbin medical university, Children's dental, Harbin, Heilongjiang, 150000, China  
PEI Li-ling Department of The first hospital affiliated with Harbin medical university, Children's dental, Harbin, Heilongjiang, 150000, China  
MENG Xiang-ling Heilongjiang Stomatological Disease Center, Harbin, Heilongjiang, 150000, China  
LIU Ying-qun Department of The first hospital affiliated with Harbin medical university, Children's dental, Harbin, Heilongjiang, 150000, China  
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中文摘要:
      摘要 目的:比较纳米瓷充填材料和复合树脂充填乳牙V类洞边缘微渗漏的影响以及固化效率的差异。方法:第一部分为微渗漏实验,选取滞留拔除的上颌乳前牙20颗,唇侧制备V 类洞,随机分为A、B两组,分别用Composan LCM和FiltekTM Z350充填,亚甲基蓝染色处理,24 h后使用体式显微镜观察,测量染料渗入深度为微渗漏值,每组各选2个样本扫描电镜观察充填体与牙体组织间粘结情况。第二部分为显微硬度实验,分别用两种充填材料制作模块各9个,记为A、B两组,材料模块光固化24 h后使用显微硬度仪检测充填材料的固化效率。结果:Composan LCM组微渗漏值明显低于FiltekTM Z350组(P<0.05);扫描电镜下观察FiltekTM Z350组充填材料与牙体组织间可见裂缝,界面参差不齐,有不连续的小断裂,Composan LCM组界面连续均匀,未见明显裂缝;两组充填材料的固化效率无显著差异(P>0.05)。结论:纳米瓷充填材料和复合树脂均可用于乳牙龋洞充填,使用纳米瓷充填材料可减少微渗漏。
英文摘要:
      ABSTRACT Objective: To evaluate the efficiency of Composan LCM and FiltekTM Z350 on the micro-leakage of Class V cavities. Methods: Part 1: 20 samples of retained maxillary primary incisors were collected, Class V cavities on the buccal surfaces were prepared and randomly divided into two groups. Group A and group B were filled with Composan LCM and FiltekTM Z350 respectively. All sam- ples were stained for 24 hours after filling and observed by stereomicroscope and scanning electron microscopy. Part 2: Group A to B were filled with Composan LCM and FiltekTM Z350 respectively and light-cured. After 24 hours of light-cured, all the specimens were used the micro-hardness method to detect the curing efficiency. Results: The micro-leakage of group B was significantly higher than that of group A(P<0.05). SEM showed that there are visible cracks between the filling materials of group B and the dental tissue, and the in- terface is uneven with discontinuous small fractures. The interface of group A was continuous and uniform without obvious cracks, there was no significant difference in curing efficiency with different filling materials(P>0.05). Conclusion: Composan LCM and FiltekTM Z350 were suitable for primary carious cavities, and using Composan LCM had less micro-leakage than FiltekTM Z350.
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