口腔医学研究 ›› 2019, Vol. 35 ›› Issue (8): 752-756.DOI: 10.13701/j.cnki.kqyxyj.2019.08.008

• 牙体牙髓病学研究 • 上一篇    下一篇

耐氟变形链球菌对计算机辅助设计与制造陶瓷与牙体组织粘接的影响

郭馨蔚, 赵洪岩, 程博群, 钱鑫, 张志民*   

  1. 吉林大学口腔医学院 吉林 长春 130021
  • 收稿日期:2019-01-02 出版日期:2019-08-28 发布日期:2019-08-22
  • 通讯作者: 张志民, E-mail: zhangzm1964@sina.com
  • 作者简介:郭馨蔚(1994~ ),女,黑龙江哈尔滨人,硕士在读,住院医师,从事牙体牙髓病学、口腔材料学研究。
  • 基金资助:
    吉林省产业创新专项基金(编号:2016C045)

Effect of Fluoride-resistant Streptococcus Mutans on Adhesion of CAD/CAM Ceramics to Teeth

GUO Xinwei, ZHAO Hongyan, CHENG Boqun, QIAN Xin, ZHANG Zhimin*   

  1. School of Stomatology, Jilin University, Changchun 130021, China
  • Received:2019-01-02 Online:2019-08-28 Published:2019-08-22

摘要: 目的:探讨变形链球菌及其耐氟菌株对3种陶瓷与牙釉质、牙本质、流体树脂粘接界面的影响。方法:诱导变形链球菌耐氟菌株,制备瓷-牙釉质/牙本质/流体树脂试件,分别浸于变形链球菌菌液UA159、其耐氟菌株菌液、BHI培养液中,连续培养14 d,体视显微镜及电镜下观察粘接界面。结果:(1)瓷-粘接剂界面:浸于UA159的试件瓷与粘接剂间的裂隙要多于浸于耐氟菌株的试件;树脂基陶瓷Lava Ultimate与粘接剂之间产生的裂隙最多;(2)粘接剂-牙体组织界面:流体树脂、牙釉质、牙本质与粘接剂间的裂隙依次递增;UA159与其耐氟菌株对此界面产生的破坏比较差异无统计学意义。结论:变形链球菌及其耐氟菌株会对瓷-粘接剂-牙体组织界面产生破坏,且对树脂基陶瓷产生的破坏最大。

关键词: 变形链球菌耐氟菌株, 变形链球菌, 计算机辅助设计与制造, 界面破坏

Abstract: Objective: To investigate the effect of Streptococcus mutans and its fluoride-resistant strains on the bonding interface between three kinds of ceramics and enamel, dentin, and fluid resin. Methods: Fluoride-resistant strains of Streptococcus mutans were induced. And ceramic-enamel/dentin/fluid resin specimens were prepared. The specimens were immersed in Streptococcus mutans UA159, its fluoride-resistant strain, and BHI culture medium, respectively. The bonding interface was observed under stereomicroscope and electron microscope for 14 days. Results: (1) Ceramic-adhesive interface: the cracks between ceramic and adhesive dipped in UA159 were more than those dipped in fluoride-resistant strains; the cracks between resin-based ceramic Lava Ultimate and adhesive were the most; (2) adhesive-teeth interface: the cracks between adhesive and fluid resin were the least; UA159 and its fluoride-resistant strains had similar influence on the interface. Conclusion: Streptococcus mutans and its fluoride-resistant strains can destroy the interface of ceramic-adhesive-dental tissue, and the most destructive effect is happened in resin-based ceramics.

Key words: Fluoride-resistant Streptococcus mutans, Streptococcus mutans, CAD/CAM, interface destruction