对用于修复间接复合材料的高填充流动复合材料的评估
Özlem Kanar1, Simge Meşeli1, Bora Korkut1
1Department of Restorative Dentistry, Faculty of Dentistry, Marmara University.
Journal of oral science
|January 17, 2024
概括
空气磨损表面处理显著提高了间接复合材料修复的剪接强度 (SBS). 具有空气磨损的高填充流动性复合材料 (HFFC) 显示出最高的结合强度,提高了间接复合材料的恢复耐用性.
科学领域:
- 牙科材料科学 牙科材料科学
- 生物材料工程 生物材料工程
- 恢复性牙科 恢复性牙科
背景情况:
- 间接复合恢复容易导致债券破产.
- 优化维修协议对于长寿至关重要.
- 表面处理 (ST) 和材料选择冲击修复强度.
研究的目的:
- 为了比较高度填充可流动复合材料 (HFFC) 的剪接强度 (SBS) 与用于间接修复的粘贴类型复合材料.
- 评估不同表面处理 (ST) 对复合材料修复强度的有效性.
主要方法:
- 准备了84个间接复合样本并进行了热循环.
- 应用了三种表面处理方法:控制,和空气磨损.
- 在SBS测试之前,样品用HFFC或糊状复合材料进行修复,并进一步老化.
主要成果:
- 表面处理显著影响了SBS (P < 0.001).
- 空气磨损产生了最高的平均SBS (20.4 ± 4.9 MPa).
- 在ST和修复材料之间发现了显著的相互作用 (P = 0.044),HFFC和空气磨损显示出最高的结合强度 (24.5 ± 4.5 MPa).
结论:
- 空气磨损是一种用于间接复合材料修复的优质表面处理方法.
- 使用带有空气磨损的高填充浮性复合材料 (HFFC) 增强了剪切键强度.
- 这种优化的协议可以提高间接复合材料修复的寿命.
相关概念视频
Flow Table Test
158
The flow table test is an established method used to assess the workability of concrete, particularly useful for evaluating highly flowable concrete mixes. This test employs an apparatus that consists of a wooden board topped with a steel plate, collectively weighing 35 pounds. The board is connected to a base via a hinge and measures 27.6 inches on each side.
Concrete is placed within a truncated cone mold that is 8 inches high with an 8-inch base diameter and a 5-inch top diameter. The...
Concrete is placed within a truncated cone mold that is 8 inches high with an 8-inch base diameter and a 5-inch top diameter. The...
158
Porosity in Cement Paste
142
The porosity of concrete is a measure of the void spaces within its structure. These spaces impact its strength and durability significantly. When water and cement interact, a chemical reaction called hydration creates a semi-solid paste. This paste includes combined water, making up approximately 23% of the cement's dry mass, and gel water, which fills minuscule voids known as gel pores, accounting for about 28% of the cement gel volume.
The balance of water to cement in the mix is...
The balance of water to cement in the mix is...
142


