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首页> 外文期刊>The Journal of Prosthetic Dentistry >Effect of luting agents on the tensile bond strength of glass fiber posts: An in vitro study
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Effect of luting agents on the tensile bond strength of glass fiber posts: An in vitro study

机译：诱剂对玻璃纤维桩拉伸粘合强度的影响：体外研究

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Statement of problem Fiber posts can fail because of loss of retention; and it is unknown which luting agent provides the highest bond strength. Purpose The purpose of this study was to investigate the tensile bond strength of glass fiber posts luted to premolar teeth with 6 resin composite luting agents. Material and methods Ninety-six single-rooted extracted human mandibular premolars were sectioned 2 mm coronal to the most incisal point of the cementoenamel junction. Root canals were instrumented and obturated with laterally condensed gutta percha and root canal sealer (AH26). Gutta percha was removed from the canals to a depth of 8 mm and diameter post spaces with a 1.5 mm were prepared. The specimens were divided into the following 6 groups according to the luting agent used (n=16): Group V, Variolink II; Group A, RelyX ARC; Group N, Multilink N; Group U, RelyX Unicem; Group P, ParaCore; Group F, MultiCore Flow. Each specimen was secured in a universal testing machine and a separating load was applied at a rate of 0.5 mm/min. The forces required to dislodge the posts were recorded. A 1-way analysis of variance (ANOVA) was applied to the mean retentive strengths of various cement materials (α=.05). Results Significant differences were recorded among the 6 cement types (P<.001). Three materials provided statistically equivalent mean bond strengths (RelyX Unicem, Paracore, and MultiCore Flow) that were significantly greater than for the other 3 materials. Conclusions Fiber posts luted with RelyX Unicem, Paracore, and MultiCore Flow demonstrated significantly higher bond strengths.
机译：问题陈述光纤缆线可能会由于丢失保持力而失败。尚不清楚哪种胶粘剂能提供最高的粘合强度。目的这项研究的目的是研究用6种树脂复合诱剂将玻璃纤维桩粘在前磨牙上的拉伸强度。材料和方法将96根单根拔除的人类下颌前磨牙切成2 mm冠状，直到牙釉质交界处的最切点。用横向冷凝的牙胶和根管封闭器（AH26）对根管进行器械检查和封闭。从运河中取出牙胶，深度为8毫米，并准备直径为1.5毫米的立柱空间。根据所使用的诱剂（n = 16）将样品分为以下6组：V组，Variolink II; V组，Variolink II。 A组，RelyX ARC; N组，Multilink N; U组，RelyX Unicem; P组，ParaCore; F组，多核流程。将每个样品固定在通用测试机中，并以0.5 mm / min的速率施加分离载荷。记录了撤离职位所需的力量。对各种水泥材料的平均保持强度进行了方差单向分析（ANOVA）（α= .05）。结果在6种水泥类型之间记录了显着差异（P <.001）。三种材料提供的统计等效平均粘合强度（RelyX Unicem，Paracore和MultiCore Flow）均明显高于其他三种材料。结论用RelyX Unicem，Paracore和MultiCore Flow吸引的纤维桩表现出明显更高的粘结强度。

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