水浸对纤维桩力学性能的影响。
Influence of water immersion on the mechanical properties of fiber posts.
作者信息
Komada Wataru, Inagaki Tasuku, Ueda Yoji, Omori Satoshi, Hosaka Keiichi, Tagami Junji, Miura Hiroyuki
机构信息
Fixed Prosthodontics, Department of Restorative Sciences, Graduate School of Medical and Dental Sciences, Tokyo Medical and Dental University, 1-5-45 Yushima, Bunkyo-ku, Tokyo 113-8549, Japan.
Cariology and Operative Dentistry, Department of Restorative Sciences, Graduate School of Medical and Dental Sciences, Tokyo Medical and Dental University, 1-5-45 Yushima, Bunkyo-ku, Tokyo 113-8549, Japan.
出版信息
J Prosthodont Res. 2017 Jan;61(1):73-80. doi: 10.1016/j.jpor.2016.05.005. Epub 2016 Jun 17.
PURPOSE
The purpose of this study was to evaluate the influence of water immersion on the mechanical properties of three kinds of glass fiber posts and the fracture resistance of structures using resin composites with glass fiber posts.
METHODS
Each post was divided into three groups; a control group and two water immersion groups (30 and 90 days). Flexural strength was determined by three-point bending test. Each structure was divided into two groups; a control group and a water immersion group for 30 days. The fracture strength of structures was determined by a static loading test.
RESULTS
In the flexural strength, two kinds of post in water immersion groups showed lower values than control groups. In the fracture strength, two kinds of structures in water immersion group showed lower values than control groups.
CONCLUSION
The prefabricated glass fiber posts and structures using resin composites with glass fiber posts were affected by water immersion.
目的
本研究旨在评估水浸对三种玻璃纤维桩的力学性能以及使用含玻璃纤维桩的树脂复合材料的结构抗折强度的影响。
方法
将每根桩分为三组；一个对照组和两个水浸组（30天和90天）。通过三点弯曲试验测定弯曲强度。将每个结构分为两组；一个对照组和一个30天的水浸组。通过静态加载试验测定结构的抗折强度。
结果
在弯曲强度方面，水浸组中的两种桩的数值低于对照组。在抗折强度方面，水浸组中的两种结构的数值低于对照组。
结论
预制玻璃纤维桩以及使用含玻璃纤维桩的树脂复合材料的结构受到水浸的影响。
Zotero 插件