Stipho H D
Department of Prosthodontic Dentistry, College of Dentistry, King Saud University, Riyadh, Saudi Arabia.
J Prosthet Dent. 1998 May;79(5):580-4. doi: 10.1016/s0022-3913(98)70180-5.
This study investigated the different effects of quantitative percentages of glass fiber intensity on the transverse strength, maximum deformation, and the modulus of elasticity of acrylic resin.
Fifty-four specimens were formed in a specially designed mold to produce identical specimens in accordance with the manufacturer's recommendations. Six percentages of glass fiber reinforcement in loose random form were studied. Each glass fiber treatment percentage (0%, 1%, 2%, 5%, 10%, 15%) was related to the total powder/liquid mass.
The results indicated that 1% glass fiber treatment enhanced the transverse strength of the tested specimen. Maximum deformation at failure in the tested treatment groups was found to be different. The interaction of glass fiber concentration on fracture strength and deformation was significant (p < 0.0001).
The 1% glass fiber concentration was found to give the best fracture strength and deformation results. Significantly higher glass fiber percentages was found to weaken the resin.
本研究调查了不同定量百分比的玻璃纤维强度对丙烯酸树脂横向强度、最大变形和弹性模量的不同影响。
在一个特别设计的模具中制作了54个样本，以根据制造商的建议生产出相同的样本。研究了六种松散随机形式的玻璃纤维增强百分比。每种玻璃纤维处理百分比（0%、1%、2%、5%、10%、15%）均与粉末/液体总质量相关。
结果表明，1%的玻璃纤维处理提高了测试样本的横向强度。测试处理组中失效时的最大变形存在差异。玻璃纤维浓度对断裂强度和变形的相互作用显著（p < 0.0001）。
发现1%的玻璃纤维浓度能给出最佳的断裂强度和变形结果。发现显著更高的玻璃纤维百分比会削弱树脂。
