Dicle University, Faculty of Dentistry, Department of Orthodontics, Diyarbakır, Turkey.
Dicle University, Faculty of Dentistry, Department of Prosthodontics, Diyarbakır, Turkey.
Braz Oral Res. 2019 Jul 1;33:e027. doi: 10.1590/1807-3107bor-2019.vol33.0027.
Nowadays, demand for esthetic restorations has risen considerably; thus, nonmetal esthetic posts made of either high-strength ceramics or reinforced resins, such as fiber-reinforced resin posts, have become more and more popular. Important characteristics of fiber-reinforced posts involve a modulus of elasticity similar to dentin and their ability to be cemented by an adhesive technique. A total of 36 maxillary incisors were divided into four groups. In this study, four adhesively luted fiber-reinforced (glass fiber, quartz glass fiber, zirconia glass fiber and woven polyethylene fiber ribbon) post systems were used. Post spaces were prepared by employing drills according to the protocol established for each group, and each post was adhesively luted with one of three adhesive systems. Three segments per root apical to the cementoenamel junction (CEJ) were obtained by sectioning the root under distilled water with a carbon spare saw. The samples (total of 108 sections) were 2.0±0.1 mm in thickness and they were stored individually in black film canisters with sterile distilled water. In order to determine the bond strength, the bonding area of each specimen was measured, and specimens were attached to a device to test microtensile strength at a speed of 1 mm/min. The analyses revealed no statistically significant differences between the adhesive systems and fiber-reinforced posts. (P> 0.05). However, the coronal portion of the root dentin had the highest bond strength. Adhesive systems used along with fiber-reinforced resin posts demonstrated reliable bonding.
如今，对美学修复的需求大幅增加；因此，高强度陶瓷或增强树脂制成的非金属美学桩，如纤维增强树脂桩，越来越受欢迎。纤维增强桩的重要特性包括与牙本质相似的弹性模量及其通过粘接技术进行粘接的能力。总共 36 颗上颌切牙被分为四组。在这项研究中，使用了四种粘接的纤维增强（玻璃纤维、石英玻璃纤维、氧化锆玻璃纤维和编织聚乙烯纤维带）桩系统。根据为每组制定的方案，用钻头制备桩腔，然后使用三种粘接系统之一将每个桩粘接到牙本质上。在蒸馏水中用碳化备用锯从牙釉牙骨质界（CEJ）根尖上方的每个根部分为三段。样本（共 108 个部分）厚度为 2.0±0.1mm，并单独储存在带有无菌蒸馏水的黑色薄膜罐中。为了确定结合强度，测量了每个样本的结合面积，并将样本附着在以 1mm/min 的速度测试微拉伸强度的设备上。分析表明，粘接系统和纤维增强桩之间没有统计学上的显著差异（P>0.05）。然而，根管牙本质的冠部具有最高的结合强度。与纤维增强树脂桩一起使用的粘接系统表现出可靠的粘接。
