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中华口腔医学研究杂志(电子版) ›› 2015, Vol. 09 ›› Issue (04) : 301 -304. doi: 10.3877/cma.j.issn.1674-1366.2015.04.008

所属专题： 文献；

基础研究

粉液比例对树脂加强型玻璃离子托槽粘接的影响
黄梓濡1, 邹华1, 侯沐明1, 许欢1, 吉建新1,†(), 陈艺2   
  1. 1. 510120　广州医科大学附属第一医院口腔科
    2. 510120　广州医科大学附属第一医院骨科；510120　广州，广东省骨科矫形技术与植入材料重点实验室
  • 收稿日期:2015-05-04 出版日期:2015-08-01
  • 通信作者: 吉建新

Effect of powder/liquid ratio variation of resin-modified glass ionomer cement on bonding brackets

Ziru Huang1, Hua Zou1, Muming Hou1, Huan Xu1, Jianxin Ji1,†(), Yi Chen2   

  1. 1. Department of Stomatology, The First Affiliated Hospital of Guangzhou Medical University, Guangzhou 510120, China
    2. Department of Orthopaedic, The First Affiliated Hospital of Guangzhou Medical University, Guangzhou 510120, China; Guangdong Key Laboratory of Orthopaedic Technology and Implant Materials, Guangzhou 510120, China
  • Received:2015-05-04 Published:2015-08-01
  • Corresponding author: Jianxin Ji
  • About author:
    Corresponding author: Ji Jianxin, Email:
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引用本文：

黄梓濡, 邹华, 侯沐明, 许欢, 吉建新, 陈艺. 粉液比例对树脂加强型玻璃离子托槽粘接的影响[J]. 中华口腔医学研究杂志(电子版), 2015, 09(04): 301-304.

Ziru Huang, Hua Zou, Muming Hou, Huan Xu, Jianxin Ji, Yi Chen. Effect of powder/liquid ratio variation of resin-modified glass ionomer cement on bonding brackets[J]. Chinese Journal of Stomatological Research(Electronic Edition), 2015, 09(04): 301-304.

目的

比较不同粉液比例改变对树脂加强型玻璃离子粘接剂托槽粘接效果的影响。

方法

将140颗离体人上颌前磨牙随机分为7组，每组20颗。将树脂加强型玻璃离子粘接剂粉剂改变范围设置成(-30%~30%)，具体分组如下：对照组、A组(+30%)、B组(+23%)、C组(+17%)、D组(-17%)、E组(-23%)、F组(-30%)。每组牙齿经过牙面处理后用不同粉液比例树脂加强型玻璃离子粘接剂进行托槽粘接。记录粘接24 h的抗剪切强度和粘接残留指数，用SPSS 19.0对实验结果进行统计分析。

结果

A~E组的抗剪切强度与对照组相比差异均无统计学意义(P > 0.05)，但降低30%粉剂比例的F组的抗剪切强度(5.71 ± 1.55)MPa比对照组(7.55 ± 1.20)MPa降低，且两者差异有统计学意义(P=0.017)，F组具有较低的粘接残留量。

结论

树脂加强型玻璃离子有较宽的临床使用范围，增加粉剂比例对树脂加强型玻璃离子粘接剂托槽粘接强度无明显影响，但降低30%粉剂比例则会降低其粘接强度。

关键词: 树脂加强型玻璃离子, 粉液比例, 抗剪切强度, 粘接残留指数
Objective

To investigate the influence of powder/liquid ratio variation on brackets bonding of resin-modified glass ionomer cement(RMGIC).

Methods

A total of 140 mandibular premolars were randomly divided into seven groups: control group, group A(+30%), group B(+23%), group C(+17%), group D(-17%), group E(-23%), group F(-30%), according to the powder/liquid ratio, with 20 teeth in each group. Edgewise brackets were bonded with RMGIC on the teeth with different powder/liquid ratio. Shear bond strength were detected on teeth after thermocycling experiment, and the adhesive remnant index were recorded with statistical analysis.

Results

There was no statistical difference in shear bond strength(SBS)between group A-E and control group(P > 0.05). The SBS of group F(5.713 ± 1.55)MPa was significantly lower than that in other groups as well as the content of residual adhesives(P=0.017).

Conclusions

RMGIC has a wide range of clinical application, increasing powder/liquid ratio has no influence of bonding strength of RMGIC. On the contrary, decreasing 30% powder will lower the bonding strength.

Key words: Resin-modified glass ionomer cement, Powder/liquid ratio, Shear bond strength, Adhesive remnant index
表1 本研究各组粘接剂的调配比例设定
组别 粉液比(g·g-1) 粉剂比例变化范围
对照组 3.00∶1 0
A组 3.90∶1 +30%
B组 3.69∶1 +23%
C组 3.51∶1 +17%
D组 2.49∶1 -17%
E组 2.31∶1 -23%
F组 2.10∶1 -30%
表2 本研究各组托槽粘接后抗剪切强度测试结果
组别 牙数(颗) 抗剪切强度(MPa，±s) 强度范围
对照组 20 7.55 ± 1.20 5.04 ~ 9.27
A组 20 8.67 ± 2.89 5.02 ~ 12.63
B组 20 7.47 ± 2.74 5.53 ~ 14.64
C组 20 8.22 ± 1.36 5.56 ~ 10.45
D组 20 6.49 ± 1.01 4.69 ~ 7.75
E组 20 6.97 ± 1.02 5.03 ~ 8.12
F组 20 5.71 ± 1.55 3.09 ~ 7.56
表3 各组抗剪切强度两两比较的P值
组别 对照组 A组 B组 C组 D组 E组
A组 0.984 - - - - -
B组 0.763 0.927 - - - -
C组 0.824 0.848 0.483 - - -
D组 0.837 0.021a 0.732 0.927 - -
E组 0.637 0.031a 0.832 0.463 0.382 -
F组 0.017a 0.028a 0.018a 0.015a 0.009a 0.011a
表4 本研究各组托槽粘接ARI计分结果
组别 牙数(颗) 0 1 2 3
对照组 20 1 9 8 2
A组 20 1 5 10 4
B组 20 1 6 9 4
C组 20 0 7 11 2
D组 20 2 10 7 1
E组 20 5 10 5 0
F组 20 8 8 4 0
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