Patent ID: 6872244

Claim:
A paste type dental glass ionomer cement composition comprising: a first paste containing 30 to 70% by weight of a polymer of an α-β unsaturated carboxylic acid and 40 to 70% by weight of water; and a second paste containing 50 to 85% by weight of fluoroaluminosilicate glass powder, 0.005 to 1% by weight of a water soluble thickening agent and the remaining percentage by weight of water, wherein the water soluble thickening agent is an inorganic thickening agent or is selected from the group consisting of carboxymethyl cellulose calcium, carboxymethyl cellulose sodium, starch, starch sodium glycolate, starch sodium phosphate, methylcellulose, sodium polyacrylate, alginic acid, sodium alginate, alginic acid propylene glycol ester, casein, sodium casein, polyethylene glycol, ethylcellulose, hydroxyethylcellulose, gluten, locust bean gum, gelatin and mixtures thereof.