首页> 外文期刊>Pesquisa Brasileira em Odontopediatria e Clinica Integrada >Influence of Functional Clinical Temperature over Compressive Strength and Diametral Tensile Strength of Various Luting Cements.
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Influence of Functional Clinical Temperature over Compressive Strength and Diametral Tensile Strength of Various Luting Cements.

机译:功能性临床温度对各种Lu水泥的抗压强度和径向拉伸强度的影响。

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Objective: To estimate the effect of temperature over the physical properties of commonly used luting cements. Material and Methods: The two set of cylindrical shaped cement samples measuring 12mm X 6mm and 4mm X 8mm were fabricated from non-eugenol zinc oxide, glass ionomer, zinc phosphate, Zinc polycarboxylate, resin cements. These two sets of samples were utilized to test compressive and diametral tensile strength respectively. Forty cement samples from each mold were fabricated and distributed between 14, 22, 37 and 55 0 C (N=10). The samples were tested under universal testing machine, and data subsequently analyzed using One-way ANOVA and Tukey multiple comparison's statistical methods at p 0.05. Results: The higher temperature resulted in noticeable reduction in the compressive strength of non-eugenol -zinc oxide, Zinc-phosphate, Zinc poly carboxylate cements. The highest compressive strength was recorded for non-eugenol zinc oxide (8.08 Mpa) at 37 0 C, Zinc phosphate (91.01Mpa) at 14 0 C, and for zinc polycarboxylate (83.06 Mpa) at 37 0 C. The comparative values for respective cements at 55 0 C were 6.40Mpa, 59.80Mpa, and 52.88 Mpa. The higher temperature had insignificant effect on the compressive strength of glass ionomer cement, while composite resin cement indicated minor deterioration. Conclusion: The relative mouth temperature influences the physical properties of the luting cements.
机译:目的:评估温度对常用胶凝水泥物理性能的影响。材料和方法:用非丁香酚氧化锌,玻璃离聚物,磷酸锌,聚羧酸锌,树脂水泥制成两组尺寸为12mm X 6mm和4mm X 8mm的圆柱形水泥样品。这两套样品分别用于测试抗压强度和径向拉伸强度。制作了每个模具的40个水泥样品,并将其分布在14、22、37和55 0 C(N = 10)之间。样品在通用测试机上测试,随后使用单向方差分析和Tukey多重比较的统计方法分析数据,p> 0.05。结果:较高的温度导致非丁香酚-氧化锌,磷酸锌,聚羧酸锌水泥的抗压强度显着降低。在37 0 C时,非丁香酚氧化锌(8.08 Mpa),在14 0 C时,磷酸锌(91.01Mpa)和在37 0 C时,聚羧酸锌(83.06 Mpa)记录了最高抗压强度。 55 0 C下的水泥为6.40Mpa,59.80Mpa和52.88 Mpa。较高的温度对玻璃离聚物水泥的抗压强度影响不大,而复合树脂水泥显示较小的劣化。结论:相对口腔温度会影响胶结水泥的物理性能。

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