Flexural strength of rebased denture polymers
Flexural strength of rebased denture polymers
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DOI：
10.1046/j.1365-2842.2000.00552.x
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发表时间：
2000-08-01
影响因子：
2.9
通讯作者：
Matsumoto, N
中科院分区：
文献类型：
--
作者：
Archadian, N;Kawano, F;Matsumoto, N
义齿基托和衬托树脂的性能可能会受到室温和口腔温度之间日常变化的影响。本研究的目的是评估热循环对带有重衬树脂的重衬义齿基托聚合物的弯曲强度的影响。测试了三种义齿基托树脂、三种硬衬树脂及其组合。每种材料制作了 14 个尺寸为 65 x 10 x 2.5 毫米的样品。聚合物组合样本是在 1.0 毫米固化义齿基托树脂上使用 1.5 毫米硬衬树脂制成的。一半样品在 37 摄氏度的蒸馏水中储存 50 +/- 2 小时，另一半在 4 至 60 摄氏度之间热循环 20000 次。在万能试验机上以 0.5 厘米/秒的十字头速度进行三点弯曲试验。测量弯曲强度并使用三向方差分析对数据进行统计分析（P
The properties of denture base and reline resins may be affected by daily changes between room temperature and mouth temperature. The purpose of the study was to evaluate the effect of thermocycling on the flexural strength of the relined denture base polymer with reline resin. Three denture base resins, three hard reline resins and their combinations were tested. Fourteen specimens, 65 x 10 x 2.5 mm, were fabricated for each material. Polymer combination specimens were made using 1.5 mm hard reline resin on 1.0 mm cured denture base resins. Half of the specimens were stored for 50 +/- 2 h in distilled water at 37 degrees C, while the other half were thermocycled for 20 000 cycles between 4 and 60 degrees C. Three point bending tests were conducted on a universal testing machine at a cross-head speed of 0.5 cm/s. The flexural strengths were measured and a statistical analysis was performed on the data using three-way ANOVA (P