Department of Operative Dentistry, Faculty of Dentistry, Istanbul University (34300) Capa, Istanbul/Turkey.
Med Oral Patol Oral Cir Bucal. 2011 Jul 1;16(4):e626-34. doi: 10.4317/medoral.16.e626.
To evaluate in vitro the push-out bond strengths of a glass fiber post adhesively luted with self-etching resin based and self-adhesive luting cements, as well as modified application procedure of self-adhesive luting cements in combination with single step self-etch adhesives.
Fifty single-rooted human maxillary central incisor teeth were endodontically treated and divided into five groups (n=10). Glass fiber posts (RelyX Fiber Post) were cemented with the following materials: group 1: ED Primer II/Panavia F 2.0 (PAN); group 2: RelyX Unicem (RU); group 3: Maxcem (MC); group 4: Adper Prompt L-Pop (PLP)/RelyX Unicem; group 5: Optibond all-in-one (OB)/Maxcem. Bonded specimens were cut (1-mm-thick sections) and push-out tests were performed (crosshead-speed, 0.5 mm/min). Data were analyzed by one-way ANOVA followed by the Tukey-HSD test for post hoc comparisons at a = 0.05.
The highest bond strength was recorded for groups 4 and 2, with no statistically significant differences among them (p >0.05). Group 4 showed significantly higher bond strength than group 1 (p <0.001), group 3 (p <0.0001) and group 5 (p <0.0001). Group 1 showed significantly higher bond strength than the group 3 (p <0.05). No statistically significant differences were observed among group 1 and group 2, group 1 and group 5, group 3 and group 5. Group 3 showed significantly lower push-out bond strength than the all other luting strategies except for the group 5.
The push-out bond strength values of modified application procedure of self-adhesive luting cements (RU and MC) in combination with single step self-etch dentin adhesives (PLP and OB) did not improve the push-out bond strength of fiber post when compared with those where the conventional use of self-adhesive cements.
评估玻璃纤维桩经自酸蚀树脂粘结剂和自粘结粘结剂水门汀黏固后的体外抗拔出粘结强度，以及自粘结粘结剂改良应用程序与一步法自酸蚀粘结剂联合应用对纤维桩抗拔出粘结强度的影响。
将 50 颗上颌单根恒中切牙进行根管治疗后随机分为 5 组（n=10）。玻璃纤维桩（RelyX Fiber Post）用以下材料黏固：第 1 组：ED Primer II/Panavia F 2.0（PAN）；第 2 组：RelyX Unicem（RU）；第 3 组：Maxcem（MC）；第 4 组：Adper Prompt L-Pop（PLP）/RelyX Unicem；第 5 组：Optibond all-in-one（OB）/Maxcem。黏结试件切割（1mm 厚切片），抗拔出试验（十字头速度 0.5mm/min）。采用单因素方差分析，组间比较采用 Tukey-HSD 检验（α=0.05）。
第 4 组和第 2 组的粘结强度最高，但组间差异无统计学意义（p＞0.05）。第 4 组的粘结强度显著高于第 1 组（p＜0.001）、第 3 组（p＜0.0001）和第 5 组（p＜0.0001）。第 1 组的粘结强度显著高于第 3 组（p＜0.05）。第 1 组与第 2 组、第 1 组与第 5 组、第 3 组与第 5 组间差异无统计学意义。第 3 组的粘结强度显著低于其他所有黏结策略，除第 5 组外。
与传统自粘结水门汀相比，自粘结水门汀改良应用程序（RU 和 MC）与一步法自酸蚀粘结剂联合应用并未提高纤维桩的抗拔出粘结强度。
