牙科铸钛用型壳材料的研究

Development of New Investment for Casting Titanium in Prosthodontics

在国内外牙科铸钛用包埋料的膨胀试验与铸件精度试验的基础上 ,确定牙科铸钛修复体的精度与铸钛专用包埋料膨胀量之间的定量关系 ,并研制出了国产新型铸钛专用包埋料。临床试验结果表明 ,自行研制开发出的新型包埋料在精度上已达到美国ADA标准 ,钛冠的颈部间隙值和颌面间隙值在 2 0～ 40

Quantitative relationship between accuracy of casting titanium article in prosthodontics and expansion value of special investment for casting titanium was determined based on both tests of the investment expansion and Ti casting accuracy. And a newly specially developed investment for dentistry casting titanium was developed. Clinical experimental result showed that the accuracy of the investment has reached ADA standard in USA.