Refraction index: 1.52 and 1.54
Barium glass powder, as a key filler for dental materials, primarily contains:Barium oxide(BaO) and various other oxides are finely prepared through a specific process. It boasts high hardness, which significantly enhances the wear resistance of dental materials containing barium glass powder, enabling them to withstand long-term chewing wear and effectively extend the lifespan of dental prosthetics and fillings. For instance, during the production of full-mouth dentures, the high hardness of barium glass powder strengthens the denture's surface against wear, ensuring the denture remains undamaged and functional during daily use. Additionally, barium glass powder has a lower coefficient of thermal expansion, similar to that of human teeth. This means that when the oral temperature changes, the stress difference between the dental restorative material containing barium glass powder and the natural teeth due to thermal expansion and contraction is minimal, reducing micro-leakage between the restoration and tooth tissue, improving the stability of the restoration, and lowering the risk of secondary caries.
In terms of optical properties, barium glass powder offers an ideal refractive index, enhancing the optical effects of dental materials. When used for anterior tooth aesthetic restoration, it allows the restored teeth to closely resemble natural teeth in terms of color, transparency, and luster, achieving a naturally aesthetic repair effect and meeting patients' pursuit of dental aesthetics. Moreover, barium glass powder has stable chemical properties, effectively resisting the complex acidic and alkaline environments and microbial erosion within the oral cavity. In the oral environment, food residue fermentation produces acidic substances, and saliva also has a certain pH level. The chemical stability of barium glass powder ensures that dental repair materials maintain stable performance in such an environment, preventing dissolution and corrosion, and guaranteeing the longevity of the repair effect.
