| 赵是民,赖光云,寿雨薇,陈晖,汪俊.4种封闭材料对树脂充填体边缘微渗漏影响的体外研究[J].口腔材料器械杂志,2021,30(2):68-73,96. |
| 4种封闭材料对树脂充填体边缘微渗漏影响的体外研究 |
| An in vitro study on the effects of four sealing materials on the marginal permeability of composite restorations |
| 投稿时间：2020-10-15 修订日期：2020-12-31 |
| DOI：10.11752/j.kqcl.2021.02.02 |
| 中文关键词: 复合树脂 微渗漏 表面封闭 |
| 英文关键词:Composite resin Microleakge Surface sealing |
| 基金项目:上海市卫生健康委员会卫生行业临床研究专项（编号：20194Y0049）；九院种子基金（编号：JYZZ039） |
| 作者 | 单位 | E-mail | | 赵是民 | 上海交通大学医学院附属第九人民医院·口腔医学院儿童口腔科, 国家口腔疾病临床医学研究中心, 上海市口腔医学重点实验室, 上海市口腔医学研究所, 上海 200011 | | | 赖光云 | 上海交通大学医学院附属第九人民医院·口腔医学院儿童口腔科, 国家口腔疾病临床医学研究中心, 上海市口腔医学重点实验室, 上海市口腔医学研究所, 上海 200011 | | | 寿雨薇 | 上海交通大学医学院附属第九人民医院·口腔医学院儿童口腔科, 国家口腔疾病临床医学研究中心, 上海市口腔医学重点实验室, 上海市口腔医学研究所, 上海 200011 | | | 陈晖 | 上海交通大学医学院附属第九人民医院·口腔医学院儿童口腔科, 国家口腔疾病临床医学研究中心, 上海市口腔医学重点实验室, 上海市口腔医学研究所, 上海 200011 | falls_chen@189.cn | | 汪俊 | 上海交通大学医学院附属第九人民医院·口腔医学院儿童口腔科, 国家口腔疾病临床医学研究中心, 上海市口腔医学重点实验室, 上海市口腔医学研究所, 上海 200011 | |
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| 中文摘要: |
| 目的 通过体外实验探究不同封闭材料对复合树脂充填体边缘微渗漏的影响。方法 选择牙冠完整无龋的第三磨牙，在颊、舌侧分别制备V类洞，并用3M Z350复合树脂充填后得到150个试样。将试样随机分为5组（n=30），其中阴性对照组不进行边缘封闭（CT组），其他4组分别使用Single Bond Universal粘接剂（SU组）、G-Coat Plus表面封闭剂（GC组）、PermaSeal表面封闭剂（PS组）和Icon渗透树脂（IC组）进行边缘封闭。各组中选择10个样本进行冷热循环试验（5℃与55℃恒温水箱间循环1 000次，各停留30 s），另有10个样本进行水老化试验（生理盐水中37℃恒温保存3个月），剩余10个样本直接进行微渗漏评价。使用染料渗入法评价充填体微渗漏程度，采用SPSS 23.0进行数据统计分析。结果 在任何条件下，GC组样本微渗漏程度最低，且显著低于CT组样本（P<0.05）。SU组和PS组样本仅在少数条件下微渗漏程度明显低于CT组样本（P<0.05）。经过老化后，IC组样本冠端的微渗漏级别显著增加（P<0.05），而SU组样本的微渗漏级别无显著改变（P>0.05）。结论 4种封闭材料均能不同程度的减轻充填体的边缘微渗漏，其中以G-Coat Plus作用效果最佳。 |
| 英文摘要: |
| Objective The aim of this study was to explore the effects of four sealing materials on the marginal permeability of composite resin fillings via an in vitro experiment. Methods Class V cavities were prepared on the buccal and lingual sides of third molars with intact crowns and no caries. 150 specimens were obtained after being restored with composite (3M Z350) and randomly divided into 5 groups (n=30). No marginal sealing was done on the restorations in the negative control group (CT group); and the margins of fillings in other four groups were sealed with Single Bond Universal (SU group), G-Coat Plus (GC group), PermaSeal (PS group) and Icon penetration resin (IC group) respectively. Ten specimens in each group were subjected to thermocycling procedures (1000 cycles from 5℃ to 55℃ with a dwell time of 30s at each temperature), another 10 specimens in each group were subjected to water aging (in saline under 37℃ for 3 months), and the remaining 10 specimens were directly subjected to microleakage evaluation. The dye penetration method was used to evaluate the degree of microleakage. SPSS 23.0 was used for data analysis, and the significance level was at 0.05. Results Under any conditions, the microleakage level of the specimens in the GC group was the lowest, and significantly lower than that in the CT group (P<0.05). Only under a few circumstances, the microleakage level of specimens in the SU and PS group was significantly lower than that in the CT group (P<0.05). After aging procedures, the microleakage level at the coronal margin of specimens in the IC group significantly increased (P<0.05); on the contrary, the microleakage level of specimens in the SU group did not change significantly (P>0.05). Conclusion In this experiment, the application of various sealing materials can reduce microleakage of composite restorations to varying degrees, and G-Coat Plus showed the best performance. |
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