苯扎氯铵改性粘接剂对牙本质-树脂远期粘接强度的影响研究

doi:10.13701/j.cnki.kqyxyj.2021.04.015

口腔医学研究 ›› 2021, Vol. 37 ›› Issue (4): 344-348.DOI: 10.13701/j.cnki.kqyxyj.2021.04.015

苯扎氯铵改性粘接剂对牙本质-树脂远期粘接强度的影响研究

牟文博¹, 程瑶², 董波^1*

1.佳木斯大学附属第二医院牙体牙髓一科黑龙江佳木斯 154002;
2.佳木斯大学附属第一医院检验科黑龙江佳木斯 154007

收稿日期:2020-10-28 发布日期:2021-04-15
通讯作者: *董波,电话:15804545400
作者简介:牟文博(1995~ ),黑龙江人,男,硕士在读,医师,研究方向:基质金属蛋白酶及其抑制剂、树脂复合材料及粘接剂的改性。

Effect of Benzalkonium Chloride Modified Adhesive on Long-term Bond Strength of Dentin-resin

MOU Wenbo¹, CHENG Yao², DONG Bo^1*

1. Department of Dentistry and Endodontics, the Second Affiliated Hospital of Jiamusi University, Jiamusi 154002, China;
2. Department of Laboratory Medicine, the First Affiliated Hospital of Jiamusi University, Jiamusi 154007, China

Received:2020-10-28 Published:2021-04-15

摘要/Abstract

摘要： 目的: 评估苯扎氯铵(benzalkonium chloride,BAC)改性粘接剂对牙本质-树脂远期粘接强度的影响。方法: 将BAC加入到美国3M第八代全酸蚀树脂粘接剂(single bond universal,SBU)中,制成不同浓度的改性粘接剂。将保存于百里香酚溶液中的100颗第三磨牙随机分为10组(n=10),A、A1组:0.25%BAC;B、B1组:0.5%BAC;C、C1组:1%BAC;D、D1:2%BAC;E、E1:对照组。A、B、C、D、E组试件进行剪切强度实验(SBS)并统计断裂模式。A1、B1、C1、D1、E1组试件进行微拉伸实验(μTBS)并统计断裂模式。结果: 在剪切强度和微拉伸强度实验中,处理组的强度表现均显著低于对照组(P<0.05),其结果具有统计学意义。D组与C组结果具有统计学差异(P=0.01).D1组与B1组、C1组比较具有统计学意义(P<0.05)。断裂模式均以混合断裂为主,其次是粘接面断裂,内聚断裂最少。结论: 全酸蚀粘接模式下,在树脂粘接剂中添加苯扎氯铵并不能改善牙本质与树脂的远期粘接强度,这可能是由于粘接剂的理化性能受损导致。

关键词: 苯扎氯铵, 基质金属蛋白酶, 粘接强度, 牙本质

Abstract: Objective: To evaluate the effect of benzalkonium chloride (BAC) modified adhesive on the long-term bond strength of dentin-resin. Methods: BAC was added to the 8th generation single bond universal (SBU) of American 3M to make modified adhesives with different concentrations. One hundred third molars stored in thymol solution were randomly divided into 10 groups (n=10): A and A1 groups: 0.25% BAC; B and B1 groups: 0.5% BAC; C and C1 groups: 1% BAC; D and D1: 2% BAC; and E and E1: control group. The specimens in groups A, B, C, D, and E were subjected to shear strength test (SBS) and the fracture mode was counted. The specimens in groups A1, B1, C1, D1, and E1 were subjected to micro-tensile test (μTBS) and the fracture mode was counted. Results: In the shear strength and micro-tensile strength experiments, the strength of the treatment group was significantly lower than that of the control group (P<0.05). The results of group D and group C were statistically different (P=0.01). Group D1 was statistically significant compared with group B1 and group C1 (P<0.05). The fracture mode was mainly mixed fracture, followed by bonding surface fracture and cohesive fracture. Conclusion: In the full-etching bonding mode, adding benzalkonium chloride to the resin adhesive cannot improve the long-term bonding strength between the dentin and the resin, which may be caused by the damaged physical and chemical properties of the adhesive.

Key words: benzalkonium chloride, matrix metalloproteinases, bonding strength, dentin

牟文博, 程瑶, 董波. 苯扎氯铵改性粘接剂对牙本质-树脂远期粘接强度的影响研究[J]. 口腔医学研究, 2021, 37(4): 344-348.

MOU Wenbo, CHENG Yao, DONG Bo. Effect of Benzalkonium Chloride Modified Adhesive on Long-term Bond Strength of Dentin-resin[J]. Journal of Oral Science Research, 2021, 37(4): 344-348.

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苯扎氯铵改性粘接剂对牙本质-树脂远期粘接强度的影响研究

Effect of Benzalkonium Chloride Modified Adhesive on Long-term Bond Strength of Dentin-resin

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