Liang Qin-ye, Wu Xia-yi, Lin Xue-feng
Department of Prosthodontics, Guanghua School of Stomatology, Hospital of Stomatology, Sun Yat-sen University & Guangdong Provincial Key Laboratory of Stomatology, Guangzhou 510055, China.
Zhonghua Kou Qiang Yi Xue Za Zhi. 2012 Apr;47(4):246-9. doi: 10.3760/cma.j.issn.1002-0098.2012.04.013.
To investigate the surface roughness property of the titanium castings cast in a new investment for titanium casting.
Six wax patterns (20 mm × 20 mm × 0.5 mm) were invested using two investments: three in a new titanium investment material and three in the control material (Rematitan Plus). Six titanium specimens were obtained by conventional casting. After casting, surface roughness of the specimens were evaluated with a surface profilometer.
The surface roughness of the specimens cast in new titanium investment material was (1.72 ± 0.08) µm, which was much smaller than that from Rematitan Plus [(1.91 ± 0.15) µm, P < 0.05].
The surfaces of titanium cast using these two investment materials are both smooth enough to fulfill the demand of the titanium precision-casting for prosthodontic clinical use.
研究在一种新型钛铸造包埋材料中铸造的钛铸件的表面粗糙度特性。
使用两种包埋材料对六个蜡型（20mm×20mm×0.5mm）进行包埋：三个使用新型钛包埋材料，三个使用对照材料（Rematitan Plus）。通过常规铸造获得六个钛试件。铸造后，用表面轮廓仪评估试件的表面粗糙度。
在新型钛包埋材料中铸造的试件的表面粗糙度为（1.72±0.08）µm，远小于Rematitan Plus铸造的试件的表面粗糙度[（1.91±0.15）µm，P<0.05]。
使用这两种包埋材料铸造的钛表面都足够光滑，能够满足口腔修复临床钛精密铸造的需求。
