Effect of smear layer deproteinization with HOCl solution on the dentin bonding of conventional and resin-modified glass-ionomer cements
Effect of smear layer deproteinization with HOCl solution on the dentin bonding of conventional and resin-modified glass-ionomer cements
复制标题
HOCl溶液涂片层脱蛋白对传统和树脂改性玻璃离子水门汀牙本质粘合的影响
DOI：
10.1111/eos.12694
复制
发表时间：
2020
期刊：
影响因子：
1.9
通讯作者：
Tagami J.
中科院分区：
文献类型：
--
作者：
Paing SY;Tichy A;Hosaka K;Nagano D;Nakajima M;Tagami J.
研究了次氯酸涂抹层脱蛋白预处理对常规和树脂改性玻璃离子水门汀与牙本质微剪切粘结强度(μ)的影响，并与聚丙烯酸脱矿预处理牙本质进行了比较。使用三种GIC：Fuji IX GP Extra(常规修复性GIC)、GC Fuji II LC EM(修复性树脂修饰GIC)和GC Fuji Luting EX(粘接树脂修饰GIC)。根据粘固剂和牙本质的不同处理方法，将15 0颗人磨牙分成3组(n=10)：未处理组(对照组)、S磷灰石预处理组(10颗)、高氯酸预处理组(S 5、15、30)，处理后2 4h进行μSBS值测定，并进行双因素方差分析和后处理。与对照组相比，高氯酸预处理组的μSBS显著增加。对于树脂修饰的修复剂，S高氯脱蛋白显著增加了μ的SBS，而较长的应用时间则没有增加。经HOCl处理的树脂粘接GIC与对照组相比，差异无统计学意义。聚酰胺酸预处理显著提高了所有水泥的μSBS。综上所述，用HOCl2进行涂抹层脱蛋白可以增强常规牙周炎患者牙本质的粘结。然而，残留的自由基可能会对树脂改性GIC的聚合产生不利影响。
The effect of smear layer‐deproteinizing pretreatment using hypochlorous acid (HOCl) on the micro‐shear bond strengths (μSBS) of conventional and resin‐modified glass‐ionomer cements (GIC) to dentin was investigated and compared with demineralizing pretreatment with polyacrylic acid (PAA). Three GICs: Fuji IX GP Extra (restorative conventional GIC), GC Fuji II LC EM (restorative resin‐modified GIC), and GC Fuji Luting EX (luting resin‐modified GIC), were used. One hundred fifty human molars were divided into groups (n= 10) according to the cements and dentin pretreatments; no pretreatment (control), 10 s PAA pretreatment, and HOCl pretreatment for 5, 15, or 30 s. After 24 h, μSBS was tested and the data were statistically analyzed using a two‐way ANOVA, followed by Tukey's post‐hoc test. HOCl pretreatment significantly increased μSBS of conventional GIC compared to the control group. For resin‐modified restorative GIC, 5 s HOCl deproteinization significantly increased μSBS, while longer application times did not. There was no significant difference between HOCl‐pretreated and control groups of resin‐modified luting GIC. PAA pretreatment increased the μSBS of all cements significantly. In conclusion, smear layer deproteinization with HOCl can enhance the dentin bonding of conventional GIC. However, the residual radicals may adversely affect the polymerization of resin‐modified GICs.