J Adhes Dent. 2022 Mar 24;24:95-104. doi: 10.3290/j.jad.b2838131.
To evaluate push-out bond strength (PBS) and interfacial nanoleakage (NL) of adhesively luted fiber posts using different composite cements and polymerization protocols.
100 premolars were endodontically treated and assigned to the following groups (n=10): RelyX Universal light-cure (3M Oral Care); RelyX Universal self-cure (3M Oral Care); Maxcem Elite Chroma light-cure (Kerr); Maxcem Elite Chroma self-cure (Kerr); Calibra Universal light-cure (Dentsply Sirona); Calibra Universal self-cure (Dentsply Sirona); Multilink Automix light cure (Ivoclar Vivadent); Multilink Automix self-cure (Ivoclar Vivadent); Luxacore Z Dual light-cure (DMG); Luxacore Z Dual self-cure (DMG). Half of the teeth from each group were subjected to the PBS test after 24 h (T0), while the other half was tested after 12 months (T12) of artificial saliva aging. An additional 4 teeth per group were prepared for NL expression. PBS values were analyzed using multivariate ANOVA and Tukey's post-hoc test. NL scores were analyzed using chi-squared tests (α = 0.05).
Statistical analysis revealed that the variables "cement" and "aging" significantly influenced PBS (p < 0.05), but not "polymerization" and "root region" (p > 0.05). Significantly lower PBS values (p < 0.05) were detected for the Calibra Universal groups compared to other cements, while the RelyX Universal groups performed equally well (p > 0.05) or better than other cements (p < 0.05). At T12, PBS values increased in the majority of groups, irrespective of root region (p < 0.05). Differences in NL expression were present at T0, and in general, the aging process increased marginal infiltration.
Aging and choice of composite cement influenced PBS, while root region and polymerization protocol seemed to have no influence on posts' resistance to dislodgment.
评估不同复合树脂水门汀和聚合方法对黏结纤维桩的推出强度（PBS）和界面微渗漏（NL）的影响。
100 颗前磨牙经根管治疗后分为以下几组（每组 10 颗）：RelyX Universal 光固化（3M 口腔护理）；RelyX Universal 自固化（3M 口腔护理）；Maxcem Elite Chroma 光固化（科尔）；Maxcem Elite Chroma 自固化（科尔）；Calibra Universal 光固化（登士柏西诺德）；Calibra Universal 自固化（登士柏西诺德）；Multilink Automix 光固化（义获嘉伟瓦登特）；Multilink Automix 自固化（义获嘉伟瓦登特）；Luxacore Z Dual 光固化（DMG）；Luxacore Z Dual 自固化（DMG）。每组一半的牙齿在 24 小时（T0）时进行 PBS 测试，另一半在人工唾液老化 12 个月（T12）时进行测试。每组另外 4 颗牙齿用于 NL 表达。使用多变量方差分析和 Tukey 事后检验分析 PBS 值。使用卡方检验（α=0.05）分析 NL 评分。
统计分析显示，变量“水门汀”和“老化”显著影响 PBS（p<0.05），但“聚合”和“根管区域”不影响 PBS（p>0.05）。与其他水门汀相比，Calibra Universal 组的 PBS 值明显较低（p<0.05），而 RelyX Universal 组的表现与其他水门汀相当（p>0.05）或更好（p<0.05）。在 T12 时，大多数组的 PBS 值增加，与根管区域无关（p<0.05）。在 T0 时存在 NL 表达的差异，一般来说，老化过程增加了边缘渗透。
老化和复合树脂水门汀的选择影响 PBS，而根管区域和聚合方案似乎对桩体的抗脱位能力没有影响。
