Ti-75合金铸造后挠度的研究

Study on the transverse deflection of cast titanium zicornium alloy

目的 通过对 Ti- 75合金铸造后挠度的测试分析 ,选择 Ti- 75合金临床应用的合理厚度 .方法 参照美国 ADA关于义齿基托树脂材料挠度的标准 ,对 Ti- 75合金的挠度进行了研究 ,并对 Ti及 Ti- 6 Al- 4V合金以及临床常用的 Co- Cr合金进行了对比研究 .结果 Ti- 75合金 ,纯钛及 Ti- 6 Al- 4V合金在厚度为 0 .6 5 m m左右时能够达到义齿基托挠度的标准 .钴铬合金在 0 .5 7mm左右时即可达到标准要求 .结论 在临床利用 Ti- 75合金制作基托时 ,厚度应选择 0 .6 5

AIM To explore the reasonable thickness of Ti 75 alloy used as denture base material. METHODS According to the 'revised ADA specification No. 12 for denture base polymers', the transverse deflection tests of Ti 75 alloy after casting were performed. Pure titanium, Ti 6Al 4V alloy and Co Cr alloy were used as control. RESULTS When the thickness was 0.65 mm for Ti 75 alloy, pure titanium and Ti 6Al 4V alloy, and 0.57 mm for Co Cr alloy, the transverse deflections could satisfy the requirement. CONCLUSION The reasonable thickness of Ti 75 alloy used as denture base material is 0.65 mm.