| 摘要 |
A method of utilizing a solution of oxalic acid potassium salt, dihydrate 99 % to react with calcium in the dentinal fluid forming an insoluble white precipitate of calcium oxalate which occludes the dentinal tubules causing decreased sensitivity, permeability and acid penetration of the dentin. A liquid composition of oxalic acid potassium salt, dihydrate 99 % containing about 1.5 % to about 10 % by weight oxalic acid potassium salt, dihydrate 99 % having a particle size of about 1 to about 10 microns when view by a 100 pow er microscope. The liquid composition has a pH of about 2.0 to 4.0. Methods of preparing the liquid composition are disclosed.
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