The best biological characteristics of the titanium series of pure medical titanium is implanted in the human body the most widely used metal in modern medicine, accounting for more than 80%, titanium contact with the body non-allergenic, carcinogenic, causing distortion phenomenon, with the bone tissue epithelium, connective tissue a good combination, which is biocompatible metal materials, the same pure medical titanium in the field of prostheses produced extraordinary results, Titanium has all the dental prosthesis should have good physical properties and chemical properties.
1. Density: the density of titanium is 4.5g / cm ⒊ of approximately Gold (19.38g/cm) 1/4, cobalt chromium alloy (8.5g/cm) 1/2, titanium prosthesis can reduce oral soft tissue burden.
2. Low thermal conductivity: the thermal conductivity of titanium (16.3-18W / M. ℃), only 1/17 of the gold, Therefore, even if the production of dental instruments titanium metal crown or inlay, can effectively protect the pulp tissue from the outside world hot and cold acid stimulation.
3. : Linear shrinkage of titanium linear shrinkage rate of 1.75%, lower than the gold alloy (1.76%) and cobalt-chromium alloy (2.13-2.24%), has an excellent fit.
4. X-ray half-resistive type: X-ray photographs of titanium crown dental organization not broken crown case to diagnose the health status of the teeth, non-magnetic titanium: titanium series denture not be magnetized in a magnetic field 6 the passive film of titanium metal Dental implant soft tissue points surface has a strong anti-etching performance titanium denture can not easily be corrosion titanium excellent mechanical properties is also the first choice for production of denture.
No comments:
Post a Comment