Hashem Mohamed, Alsaleem Samah O, Assery Mansour K, Abdeslam Emad Braka, Vellappally Sajith, Anil Sukumaran
Dental Health Department, Dental Biomaterials Research Chair, College of Applied Medical Sciences, King Saud University, Riyadh 11433, Saudi Arabia, Tel: 00966-500197223; Fax: 00966-11-467-9017; e-mail:
Oral Health Dent Manag. 2014 Jun;13(2):311-5.
To compare the flexural, tensile and compressive strengths of three denture base materials, namely, Lucitone 550, Bio Carbo Resin, and Eclipse.
A total of 180 specimens were prepared, with 60 specimens of each material tested. The dimensions of the specimens for each test were made according to the ADA specification. They were stored in distilled water bath at 37°C for 48 hours before testing. Each specimen was fixed on the table of the Instron universal testing machine. A force was applied at a cross-head speed of 5 mm/min until fracture occurred. Data were analyzed using a one-way analysis of variance (ANOVA) and Tukey's test (p=0.05) for the flexural, tensile, and compressive strengths among all groups.
The flexural and compressive strength values showed significant differences between the three denture base materials. However, there was no significant difference in tensile strength between Lucitone 550 and Bio CarboResin.
Eclipse showed significantly higher mechanical properties than polycarbonate reinforced and conventional heat cured acrylic resins, which suggests the use of Eclipse denture base materials as an alternative to traditional denture base resins.
比较三种义齿基托材料，即Lucitone 550、生物碳树脂和Eclipse的抗弯强度、拉伸强度和抗压强度。
共制备180个试件，每种材料测试60个试件。每个测试的试件尺寸均按照ADA规范制作。在测试前，将它们在37°C的蒸馏水中浸泡48小时。每个试件固定在英斯特朗万能试验机的工作台上。以5毫米/分钟的十字头速度施加力，直至发生断裂。使用单因素方差分析（ANOVA）和Tukey检验（p = 0.05）对所有组之间的抗弯强度、拉伸强度和抗压强度数据进行分析。
三种义齿基托材料之间的抗弯强度和抗压强度值存在显著差异。然而，Lucitone 550和生物碳树脂之间的拉伸强度没有显著差异。
Eclipse显示出比聚碳酸酯增强型和传统热固化丙烯酸树脂更高的机械性能，这表明使用Eclipse义齿基托材料可替代传统义齿基托树脂。
