1results about How to "Reduced linear shrinkage" patented technology

The reinforcing filler in the dental resin cement composition provided by the present invention has a particle size distribution that simultaneously satisfies D75-D25≤0.95μm, D25-D15≤0.7μm, and D50 of 0.5~1.0μm. Specifically, the present invention improves the chemical curing time, edge sealing, and linear shrinkage rate of dental resin cement by controlling the D15 / D25 / D75 and D50 of the reinforcing filler in the matrix and catalytic portions to have the above-mentioned specific numerical relationships.