基底材料老化和粘结剂成分对牙本质粘结的影响。

Effect of substrate age and adhesive composition on dentin bonding.

机构信息

Department of Restorative Sciences, University of Minnesota, Minneapolis, MN 55455, USA.

出版信息

Oper Dent. 2013 May-Jun;38(3):267-74. doi: 10.2341/12-307-L. Epub 2012 Dec 4.

DOI:10.2341/12-307-L

PMID:23210916

Abstract

PURPOSE

To study the effect of dentin age and adhesive composition on the microtensile dentin bond strengths (μTBS) of five dentin adhesives.

MATERIALS AND METHODS

Sixty extracted caries-free human teeth were assigned to the appropriate age group: less than 21 years of age (<21), 21-40 years of age (21-40), and greater than 40 years of age (>40). For each age group, specimens were randomly divided into five dentin adhesives: (1) Adper Easy Bond (EB, 3M ESPE), a one-step self-etch adhesive; (2) Experimental Adper Easy Bond without the Vitrebond Co-polymer (CP) (EBnoCP, 3M ESPE); (3) Adper Single Bond Plus (SB, 3M ESPE), a two-step etch&rinse adhesive; (4) Experimental Adper Single Bond Plus without CP (SBnoCP, 3M ESPE); and (5) Adper Scotchbond Multi-Purpose (MP, 3M ESPE), a three-step etch&rinse adhesive, as the control group. Specimens were sectioned in X and Y directions and the resulting beams were tested to failure in tension mode at a crosshead speed of 1 mm/min. Statistical analysis was computed using t-test and two-way analysis of variance followed by Fisher least significant difference multiple comparison post hoc test at p < 0.05.

RESULTS

The highest mean μTBS values were obtained in the control group (MP) for all age groups. EB resulted in statistically similar mean μTBS compared to EBnoCP for all age groups: p = 0.538 for (<21); p = 0.974 for (21-40); and p = 0.909 for (>40). SB resulted in statistically higher mean μTBS than SBnoCP for all age groups [p<0.009 for (<21); p<0.028 for (21-40); and p<0.041 for (>40)]. MP, the control group, resulted in statistically lower mean μTBS when applied to the oldest age group (>40) compared to the youngest age group (<21), at p < 0.04. When means were pooled for the variable 'age group,' SB resulted in significantly higher mean μTBS than SBnoCP at p < 0.009, while EB resulted in statistically similar mean μTBS compared to EBnoCP (p=0.9). MP resulted in statistically higher mean μTBS than all other adhesives-SB (p<0.0001), SBnoCP (p<0.0001), EBnoCP (p<0.022), and EB (p<0.046).

CONCLUSIONS

The substrate age influenced the bonding ability of the three-step etch&rinse adhesive. The presence of a carboxylic-based polymer (CP) enhanced the bonding ability of the two-step etch&rinse adhesive.

摘要

目的

研究牙本质年龄和胶粘剂组成对 5 种牙本质胶粘剂的微拉伸牙本质粘结强度（μTBS）的影响。

材料与方法

将 60 颗无龋的人离体牙分为<21 岁、21-40 岁和>40 岁 3 个年龄组。每个年龄组的样本又随机分为 5 个牙本质粘接剂组：（1）Adper Easy Bond（EB，3M ESPE），一步自酸蚀粘接剂；（2）不含 Vitrebond 共聚物的实验性 Adper Easy Bond（EBnoCP，3M ESPE）；（3）Adper Single Bond Plus（SB，3M ESPE），两步酸蚀-冲洗粘接剂；（4）不含 Vitrebond 共聚物的实验性 Adper Single Bond Plus（SBnoCP，3M ESPE）；（5）Adper Scotchbond Multi-Purpose（MP，3M ESPE），三步酸蚀-冲洗粘接剂，作为对照组。将样本沿 X 和 Y 方向切割，将产生的梁以 1mm/min 的十字头速度进行拉伸模式失效测试。使用 t 检验和双因素方差分析进行统计分析，然后使用 Fisher 最小显著差异多重比较后验检验进行 p<0.05 的组间比较。

结果

在所有年龄组中，对照组（MP）的平均 μTBS 值最高。对于所有年龄组，EB 的平均 μTBS 值与 EBnoCP 相似：p=0.538（<21）；p=0.974（21-40）；p=0.909（>40）。与 SBnoCP 相比，SB 在所有年龄组中的平均 μTBS 值均较高 [p<0.009（<21）；p<0.028（21-40）；p<0.041（>40）]。对照组 MP 在最年长的年龄组（>40）的平均 μTBS 值显著低于最年轻的年龄组（<21），p<0.04。当按“年龄组”汇总均值时，与 SBnoCP 相比，SB 显著提高了平均 μTBS 值，p<0.009，而 EB 与 EBnoCP 的平均 μTBS 值相似，p=0.9。与所有其他粘接剂相比，MP 的平均 μTBS 值均较高-SB（p<0.0001），SBnoCP（p<0.0001），EBnoCP（p<0.022）和 EB（p<0.046）。