Department of Endodontics, Faculty of Dentistry, Mansoura University, Mansoura, 35516, Egypt.
Department of Restorative and Dental Materials, Faculty of Dentistry, Taif University P.O Box 11099, Taif, 21944, Saudi Arabia.
BMC Oral Health. 2021 Mar 19;21(1):131. doi: 10.1186/s12903-021-01518-y.
To evaluate the effect of surface treatments on the push-out bond strength of Biodentine (BD) and white mineral trioxide aggregate (WMTA) to fiber posts.
Two brands of fiber posts were used: Reblida post; RP and RelyX post; RX. Each type of post (n = 80/group) was divided into four groups (n = 20/group) and exposed to surface treatment as follows: Control (no treatment), sandblasting (SB), hydrofluoric acid (HF), and TiF 4 wt/v%. Each group was further subdivided into two subgroups (n = 10/subgroup) based on the type of CSCs used as follows: Subgroup A: BD and Subgroup B: WMTA. Push-out bond strength of BD and WMTA to glass fiber posts was assessed. Data were statistically analyzed using three-way ANOVA and Tukey's test. A Weibull analysis was performed on the push-out bond strength data.
BD showed higher bond strength than WMTA (P < 0.001). The push-out bond strength for posts treated with TiF4 4 wt/v% showed greater bond strength than the other surface treatments (P < 0.05). The BD/RP-TiF 4 wt/v% showed the greater characteristic bond strength (σ) (15.93) compared with the other groups. Surface treatments modified the surface topography of glass fiber posts.
The BD/RP-TiF 4 wt/v% showed greater bond strength compared with the other groups. The TiF 4 wt/v% surface treatment enhanced the bond strength of BD and WMTA to glass fiber posts than the other treatments. Surface treatment of fiber post with TiF 4 wt/v% could be used to improve the bond strength with calcium silicate-based cements.
评估表面处理对 Biodentine（BD）和白色矿物三氧化物聚合体（WMTA）与纤维桩的推出粘结强度的影响。
使用两种品牌的纤维桩：Reblida 桩；RP 和 RelyX 桩；RX。每种类型的桩（n=80/组）分为四组（n=20/组），并进行表面处理，如下所示：对照组（无处理）、喷砂（SB）、氢氟酸（HF）和 TiF4wt/v%。每组进一步根据所使用的 CSC 类型分为两个亚组（n=10/亚组），如下所示：亚组 A：BD 和亚组 B：WMTA。评估 BD 和 WMTA 对玻璃纤维桩的推出粘结强度。使用三因素方差分析和 Tukey 检验对数据进行统计学分析。对推出粘结强度数据进行 Weibull 分析。
BD 显示出比 WMTA 更高的粘结强度（P<0.001）。用 TiF4 4wt/v%处理的桩的推出粘结强度比其他表面处理显示出更大的粘结强度（P<0.05）。BD/RP-TiF4wt/v%显示出比其他组更大的特征粘结强度（σ）（15.93）。表面处理改变了玻璃纤维桩的表面形貌。
BD/RP-TiF4wt/v%与其他组相比显示出更大的粘结强度。TiF4wt/v%的表面处理增强了 BD 和 WMTA 与玻璃纤维桩的粘结强度，优于其他处理方法。TiF4wt/v%的纤维桩表面处理可用于提高与硅酸钙基水泥的粘结强度。
