Abstract
The purpose of this study is to investigate the feasibility of pure titanium to the metal-porcelain system.
Since thermal expansion coefficient of pure titanium was 9.41×10-6/°C (100-400°C) and was considerably smaller than those of the conventional alloys for porcelain, a porcelain having the thermal expansion coefficient of 8.5-8.9×10-6/°C was experimentally prepared.
The bonding strengths of pure titanium to newly prepared porcelains were more than 160kg/cm2, which is close to those between conventional metals and “Vita” porcelains.
Pure titanium has the intermediate mechanical properties between gold and nickel-chromium alloys and higher sag resistance than these alloys.
