烧结钛合金在金属义齿基托中的应用：全口义齿基托用钛粉片的研究。

Application of sintered titanium alloys to metal denture bases: a study of titanium powder sheets for complete denture base.

作者信息

Doi H, Harrori M, Hasegawa K, Yoshinari M, Kawada E, Oda Y

机构信息

Department of Dental Materials Science, Tokyo Dental College, Chiba, Japan.

出版信息

Bull Tokyo Dent Coll. 2001 Feb;42(1):35-43. doi: 10.2209/tdcpublication.42.35.

DOI:10.2209/tdcpublication.42.35

PMID:11484793

Abstract

The purpose of this study was the fabrication of titanium powder sheets to enable the application of sintered titanium alloys as metal denture bases. The effects of titanium particle shape and size, binder content, and plasticizer content on the surface smoothness, tensile strength and elongation of titanium powder sheets was investigated. To select a suitable ratio of powdered metal contents for application as a metal denture base, the effects of aluminum content in Ti sheets and various other powder metal contents in Ti-Al sheets on the density, sintering shrinkage, and bending strength were evaluated. Based on the results of the above experiments, we developed a mixed powder sheet composed of 83Ti-7Al-10Cr with TA45 titanium powder (atomized, -45 microm), and 8 mass% binder content. This titanium alloy sheet had good formability and ductility. Its sintered titanium alloy had a density of 3.2 g/cm3, sintering shrinkage of 3.8%, and bending strength of 403 MPa. The titanium alloy sheet is clinically acceptable for fabricating denture bases.

摘要

本研究的目的是制造钛粉片，以使烧结钛合金能够应用于金属义齿基托。研究了钛颗粒形状和尺寸、粘结剂含量以及增塑剂含量对钛粉片表面光滑度、拉伸强度和伸长率的影响。为了选择适合用作金属义齿基托的粉末金属含量比例，评估了钛片中铝含量以及钛 - 铝片中各种其他粉末金属含量对密度、烧结收缩率和弯曲强度的影响。基于上述实验结果，我们开发了一种由83Ti - 7Al - 10Cr与TA45钛粉（雾化，-45微米）组成的混合粉片，粘结剂含量为8质量%。这种钛合金片具有良好的可成型性和延展性。其烧结钛合金的密度为3.2 g/cm³，烧结收缩率为3.8%，弯曲强度为403 MPa。该钛合金片在临床上可用于制造义齿基托。