Department of Prosthodontics, Faculty of Dentistry, Ondokuz Mayıs University, Samsun, Turkey.
J Esthet Restor Dent. 2011 Dec;23(6):380-7. doi: 10.1111/j.1708-8240.2011.00415.x. Epub 2011 Apr 27.
The choice of desensitizing agent can affect the bond strength of adhesive resin cement to dentin.
The purpose of this study was to evaluate the effects of different dentin desensitizing agents on the bond strength of adhesive resin cement to dentin.
Sixty specimen teeth were randomly divided into six groups (n=10). Five groups of teeth were treated with a desensitizing agent containing sodium and calcium fluoride in cellulose alone, hydroxyethyl methacrylate (HEMA), benzalkonium chloride and sodium fluoride, HEMA and glutaraldehyde, an ormocer-based or a resin-based dentin desensitizer. The remaining 10 specimens served as controls. Adhesive resin cement was applied to the dentin surface. The shear bond strength was measured using a universal testing machine at a 0.5 mm/minute crosshead speed. The data were analyzed statistically with one-way analysis of variance and a Tukey's Honestly Significant Difference (HSD) test (α=0.05). In addition, dentin surfaces were examined by a scanning electron microscope.
THE lowest bond strength was in the group treated with desensitizing agent containing sodium and calcium fluoride and the highest bond strength was from the group treated with desensitizing agent containing HEMA and sodium fluoride.
Desensitizing agents containing sodium and calcium fluoride reduced the bond strength of adhesive resin cement.
The type of desensitizer used is an important factor regarding the bond strength of adhesive resin cements to dentin.
脱敏剂的选择会影响牙本质粘结树脂水泥的粘结强度。
本研究旨在评估不同牙本质脱敏剂对牙本质粘结树脂水泥粘结强度的影响。
将 60 颗样本牙随机分为 6 组（n=10）。5 组牙分别用含有纤维素中的钠和钙氟化物、羟乙基甲基丙烯酸酯（HEMA）、苯扎氯铵和氟化钠、HEMA 和戊二醛、基于有机硅的或基于树脂的牙本质脱敏剂处理。其余 10 个样本作为对照。将粘结树脂水泥涂覆在牙本质表面。以 0.5 毫米/分钟的十字头速度用万能试验机测量剪切粘结强度。使用单向方差分析和 Tukey 的 Honestly Significant Difference（HSD）检验（α=0.05）对数据进行统计分析。此外，用扫描电子显微镜检查牙本质表面。
用含有钠和钙氟化物的脱敏剂处理的组粘结强度最低，用含有 HEMA 和氟化钠的脱敏剂处理的组粘结强度最高。
含有钠和钙氟化物的脱敏剂降低了牙本质粘结树脂水泥的粘结强度。
使用的脱敏剂类型是影响牙本质粘结树脂水泥粘结强度的一个重要因素。
