【搅拌和加热对投资材料抗压强度的影响】。

Odontostomatologike proodos Pub Date : 1989-08-01
T Papadopoulos, M Caracatsanis
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引用次数: 0

摘要

在本研究中,比较了四种具有代表性的牙科投资材料的抗压强度。整个调查分为三个实验。研究了不同混合方式对投资板抗压强度的影响。在第二部分中,比较了在真空下机械混合的投资物的抗压强度:a)混合后两小时,b)在最高加热温度下,c)在加热过程后的室温下。在第三个实验中,比较了最高加热温度下投资的抗压强度。投资是在真空下机械混合,但一半的标本放置在一个压力装置在设置。根据所得结果,得出以下结论:a)真空下机械混合增加了熔料的抗压强度;b)在加热过程的最高温度下,磷酸盐粘合熔料的抗压强度增加;c)在熔料定型过程中使用压力装置也增加了抗压强度。
本文章由计算机程序翻译,如有差异,请以英文原文为准。
[The influence of mixing and heating on the compressive strength of investment materials].

In the present study, the compressive strength of four representative dental investment materials was compared. The whole investigation was divided in three experiments. In the first one the effect of different ways of mixing on the compressive strength of the investments was examined. In the second the compressive strength of investments mixed mechanically under vacuum was compared: a) two hours after mixing, b) at the highest heating temperature and c) at room temperature after the heating procedure. In the third experiment, a comparison was made between the compressive strength of investments at the highest heating temperature. The investments were mixed mechanically under vacuum but half of the specimens were placed in a pressure device during setting. From the results obtained the following conclusions were made: a) Mixing mechanically under vacuum increases the compressive strength of the investments, b) the compressive strength of phosphate-bonded investments increases at the highest temperature of the heating procedure and c) the use of a pressure device during the setting of the investments results also in an increased compressive strength.

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