上海口腔医学 ›› 2018, Vol. 27 ›› Issue (3): 235-238.doi: 10.19439/j.sjos.2018.03.003

• 论著 • 上一篇    下一篇

过氧化氢酶对外漂白后树脂充填体边缘微渗漏的影响

韩艳彦,伍甜甜,朱亚琴   

  1. 上海交通大学医学院附属第九人民医院·口腔医学院 口腔综合科,国家口腔疾病临床研究中心,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
  • 收稿日期:2017-10-12 修回日期:2018-01-15 出版日期:2018-07-20 发布日期:2018-07-20
  • 通讯作者: 朱亚琴,E-mail:zyq1590@163.com
  • 作者简介:韩艳彦(1987-),女,硕士,住院医师,E-mail:iceleave 211@163.com
  • 基金资助:
    国家自然科学基金(81700949)

Effect of catalase on marginal microleakage of resin restoration after external bleaching

HAN Yan-yan, WU Tian-tian, ZHU Ya-qin   

  1. Department of General Dentistry, Shanghai Ninth People's Hospital, College of Stomatology, Shanghai Jiao Tong University School of Medicine; National Clinical Research Centre of Stomatology; Shanghai Key Laboratory of Stomatology & Shanghai Research Institute of Stomatology. Shanghai 200011, China
  • Received:2017-10-12 Revised:2018-01-15 Online:2018-07-20 Published:2018-07-20

摘要: 目的: 观察过氧化氢酶对10%过氧化脲外漂白后复合树脂充填体边缘微渗漏的影响。方法: 选取牙体健康完整的人离体前磨牙40颗,随机分为4组,第1组不漂白直接进行树脂充填,第2组外漂白后立即树脂充填,第3组外漂白后将牙在人工唾液中浸泡3周再进行树脂充填,第4组外漂白后先用过氧化氢酶处理窝洞再进行树脂充填。然后将4组样本进行2000个周期的冷热循环,应用2%亚甲基蓝染色24 h,体视显微镜下观察剖面树脂充填体的微渗漏程度,采用SPSS17.0软件包对数据进行统计学分析。结果: 第1组微渗漏值最低,第2组微渗漏值最高,第3组微渗漏值显著高于第1组但与第2组相比无显著差异(P>0.05);第4组微渗漏值较第2组显著下降(P<0.05)。结论: 10%过氧化脲外漂白致树脂充填体边缘微渗漏明显增加,树脂充填前应用过氧化氢酶处理窝洞,可有效减少微渗漏,延迟充填不能有效改善微渗漏。

关键词: 过氧化氢酶, 外漂白, 复合树脂, 微渗漏

Abstract: PURPOSE: To investigate the effect of catalase on marginal microleakage of resin restoration after external tooth bleaching with 10% carbamide peroxide. METHODS: Forty extracted human premolars, both intact and health, were randomly divided into 4 groups: group 1, direct composite resin filling without bleaching; group 2, composite resin filling immediately after external bleaching; group 3, immersed in artificial saliva for 3 weeks after external bleaching ,then filling with composite resin; group 4 ,cavity treated with catalase after external bleaching and then filled with composite resin. After 2000 thermal cycles, the teeth were immersed in 2% methylene blue for 24 hours, then the microleakage of interface of resin restorations was observed under stereomicroscope. The data were analysed with SPSS17.0 software package. RESULTS: Group 1 displayed the least amount of microleakage, while group 2 showed the greatest amount of microleakage, group 3 behaved similarly as group 2, having great amount of microleakage, with no significant difference (P>0.05); the microleakage of group 4 decreased significantly (P<0.05) compared to group 2. CONCLUSIONS: The microleakage increases significantly after external bleaching with 10% carbamide peroxide, then decreases if cavities are treated with catalase, but delay filling can not improve microleakage effectively.

Key words: Catalase, External tooth bleaching, Composite resin, Microleakage

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