中国医科大学学报

中国医科大学学报
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中国医科大学学报 ›› 2017, Vol. 46 ›› Issue (7): 619-622.doi: 10.12007/j.issn.0258-4646.2017.07.010

• 论著 • 上一篇    下一篇

渗透树脂联合乙醇湿粘接技术对牙本质小管封闭效果的研究

孙斌 1,佀一衡 2,赵悦 2,屈直 2   

  1. 锦州医科大学附属第二医院 1 修复科;1 正畸科,辽宁 锦州 121000
  • 收稿日期:2016-10-25 出版日期:2017-07-31 发布日期:2017-07-21
  • 通讯作者: 屈直 E-mail:quzhi777@sina.com
  • 作者简介:孙斌(1985 -),男,硕士研究生 .
  • 基金资助:
    辽宁省自然科学基金(2013022012)

The Occluding Effect of Penetrating Resin Combined with Ethanol Wet-bonding on Dentin Tubule

SUN Bin1,SI Yiheng2,ZHAO Yue2,QU Zhi2   

  1. 1 Department of Prosthodontics,The Second Affiliated Hospital,Jinzhou Medical University,Jinzhou 121000,China;1 Department of Orthodontics,The Second Affiliated Hospital,Jinzhou Medical University,Jinzhou 121000,China
  • Received:2016-10-25 Online:2017-07-31 Published:2017-07-21

摘要: 目的 比较研究渗透树脂、Single Bond 及渗透树脂应用乙醇湿粘接技术对牙本质小管的封闭效果。方法 将 60 颗离体前磨牙制备成牙本质盘,按随机数字法分为 3 组,每组 20 颗,将每个样本纵向劈成两半,一半样本为空白对照,4 000 倍电镜下统计牙本质小管总数,另一半根据涂抹试剂不同分渗透树脂组(A 组),Single Bond 组(B 组)和渗透树脂应用乙醇湿粘接组(C组)。将涂抹试剂的样本再次纵向劈开,扫描电镜观察试剂对牙本质小管封堵及渗入效果。结果 A 组牙本质小管口堵孔率为(70.10±2.13)%,渗透深度为(50±10.59)μm,树脂突较短,不连续;B 组堵孔率为(86.35±1.73)%,渗透深度为(69±11.98)μm,树脂突稀疏,与管壁不密合;C 组堵孔率为(95.65±1.46)%,渗透深度为(177±9.17)μm,树脂突饱满、致密。结论 渗透树脂应用乙醇湿粘接能更好的封闭牙本质小管。

关键词: 牙本质小管, 渗透树脂, Single Bond, 扫描电子显微镜, 乙醇湿粘接

Abstract: Objective To compare the occluding effect of conventional penetrating resin,Single Bond desensitizer,and penetrating resin combined with ethanol wet-bonding on dentin tubules. Methodse Sixty isolated premolar teeth were prepared to form dentin discs. The 60 teeth were divided into 3 groups based on a random number table: Group A,conventional penetrating resin; Group B,Single Bond desensitizer; and Group C, penetrating resin combined with ethanol wet-bonding. Each group comprised 20 teeth. Dentin discs were split in half along the longitudinal axis. Half of the disc served as the control; the other half was coated with desensitizer. Microscopic characteristics of the dentin surface and profile were determined by using a field emission scanning electron microscope. Results In group A,70.10%±2.13% of the dentin tubule openings were covered by the resin. The penetration depth was 50±10.59 μm,and the resin was short and discontinuous. In group B,86.35%±1.73% of the dentin tubules openings were covered. The penetration depth was 69±11.98 μm,and the resin was sparse. In group C,95.65%±1.46% of dentin tubules openings were covered. The penetration depth was 177±9.17 μm,and the resin was compact and filled. Conclusion Penetrating resin combined with ethanol wet-bonding occludes dentin tubules better than conventional penetrating resin and Single Bond desensitizer.

Key words: dentin tubules, penetrating resin, Single Bond, scanning electronic microscopy, ethanol wet-bonding

中图分类号: 

  • R781.2
[1] 陈晖,张英. 氟斑牙临床有效治疗方法的探讨[J]. 中国医科大学学报, 2015, 44(8): 746-748.
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