口腔医学研究

口腔医学研究 ›› 2019, Vol. 35 ›› Issue (5): 457-460.DOI: 10.13701/j.cnki.kqyxyj.2019.05.011

• 龋病牙髓病学研究 • 上一篇    下一篇

纳米羟基磷灰石复合树脂与牙釉质之间粘接界面电镜观察

王志平1,2, 赵蒙蒙3, 董志恒1, 牛月月1, 王倩1, 王青山1*   

  1. 1. 滨州医学院附属医院口腔科 山东 滨州 256603;
    2. 烟台海港医院 山东 烟台 264000;
    3. 滨州市人民医院 山东 滨州 256600
  • 收稿日期:2018-11-20 出版日期:2019-05-28 发布日期:2019-05-21
  • 通讯作者: 王青山,E-mail:wangqingshan007@sina.com
  • 作者简介:王志平(1986~ ),女,硕士在读,主治医师,研究方向:牙体牙髓病学。
  • 基金资助:
    山东省自然科学基金(编号:ZR2018LH010)
    山东省医药卫生科技发展计划(编号:2013WS0308)

Electron Microscopic Observation on Bonding Interface between Nano-hydroxyapatite Composite Resin and Enamel.

WANG Zhi-ping1,2, ZHAO Meng-meng3, DONG Zhi-heng1, NIU Yue-yue1, WANG Qian1, WANG Qingshan1*   

  1. 1. Department of Stomatology, Affiliated Hospital of Binzhou Medical College, Binzhou 256603, China;
    2. Yantai Harbour Hospital, Yantai 264000, China;
    3. Binzhou People's Hospital, Binzhou 256600, China
  • Received:2018-11-20 Online:2019-05-28 Published:2019-05-21

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摘要： 目的: 通过对纳米羟基磷灰石复合树脂与牙釉质之间粘接界面间隙的观测来分析和比较其与牙釉质的密合性。方法: 健康离体第一磨牙30颗,制备Ⅰ类洞型,随机分成3组,分别为A、B和C组,每组10颗。A组分层充填新型纳米羟基磷灰石复合树脂,B组分层充填卡瑞斯玛复合树脂,C组一次性充填玻璃离子水门汀,3组均经冷热循环老化处理后,流水冲洗下低速金刚砂片纵向片切牙齿和材料充填部位,打磨成薄片,在扫描电镜下观察充填材料与牙釉质的粘接界面并测量间隙大小。结果: 纳米羟基磷灰石复合树脂与牙釉质粘接界面间隙较小,卡瑞斯玛复合树脂与牙釉质粘接界面之间的间隙较大,玻璃离子水门汀与牙釉质之间存在大的裂隙,三者比较差异具有显著性(P＜0.001)。结论: 新型纳米羟基磷灰石复合树脂与牙釉质之间粘接紧密,具有良好的粘接性能。

关键词: 纳米羟基磷灰石, 粘接界面, 牙釉质, 复合树脂, 密合性

Abstract: Objective: To analyze and compare the fitness of material and teeth through observing the bonding interface between nano hydroxyapatite composite resin and enamel. Methods: 30 healthy first molars were prepared and randomly divided into three groups: group A, group B, and group C. Group A was filled with new nano-hydroxyapatite composite resin. Group B was filled with Karisma composite resin, and group C with glass ionomer cement. After the cold and hot cycle aging test, the teeth and material filling position was cut by low speed Emery slice under flowing water, which was then polished into a thin slice. The bonding interface between the filling material and enamel was observed under scanning electron microscope and the gap was measured. Results: The interfacial gap between nano-hydroxyapatite composite resin and enamel was small, the gap between Karisma composite resin and enamel was larger, and the gap between glass ionomer cement and enamel was the largest. There was significant difference among the three groups (P<0.001). Conclusion: The new nano-hydroxyapatite composite resin has good adhesion to enamel.

Key words: Nano-hydroxyapatite, Bonded interface, Enamel, Composite resin, Adaptation