| 摘要 |
PURPOSE: A dental filling composition including zirconia powder is provided to have a high bioaffinity since radio-opacity is excellent and the content of heavy metals is very low, thereby being safely and widely used for dental filling. CONSTITUTION: A dental filling composition comprises zirconia powder and a hydraulic inorganic bond. Per total weight of the dental filling composition, 45-85% of the zirconia powder, 14-54% of the hydraulic inorganic bond, 0.5% or less of weak acidic maleic acid, citric acid, or tartaric acid as a hardening control agent, and 5% or less of pozzolan component are included in the dental filling composition. [Reference numerals] (AA) Example 2 |
