PROBLEM TO BE SOLVED: To provide a dentifrice with which dirt on teeth such as dental plaque and stained dirt can be effectively removed over the entire surface of teeth where recesses of various sizes or a narrow gap between curved surfaces exists.SOLUTION: There is provided the dentifrice that contains 5 mass% or more to 40 mass% or less of granules (A) each of which has a particle diameter of 39 μm or more and which have a collapse strength of 15 gf/piece or more to 50 gf/piece or less and are composed of the following granules: (a1) a granule with a particle diameter of 39 μm or more to less than 78 μm, (a2) a granule with a particle diameter of 78 μm or more to less than 116 μm, (a3) a granule with a particle diameter of 116 μm or more to less than 152 μm, (a4) a granule with a particle diameter of 152 μm or more to less than 200 μm, (a5) a granule with a particle diameter of 200 μm or more, the volume ratio (a2/a3) of the content of the granule (a2) and granule (a3) being 0.5 or more to 2 or less, and the volume ratio (a4/a3) of the content of the granule (a4) and granule (a3) being 0.2 or more to 2 or less, and that further contains (B) a polisher.COPYRIGHT: (C)2015,JPO&INPIT【課題】大小様々な大きさの凹部や曲面と曲面に阻まれた狭小な部位が存在する歯の表面全域にわたり、付着した歯垢や着色汚れ等の汚れを効果的に除去することのできる歯磨剤に関する。【解決手段】(A)粒径が39μm以上であって、次の顆粒(a1)粒径が39μm以上78μm未満の顆粒、(a2)粒径が78μm以上116μm未満の顆粒、(a3)粒径が116μm以上152μm未満の顆粒、(a4)粒径が152μm以上200μm未満の顆粒、(a5)粒径が200μm以上の顆粒からなり、顆粒(a2)及び顆粒(a3)の含有量の体積比(a2/a3)が0.5以上2以下であり、顆粒(a4)及び顆粒(a3)の含有量の体積比(a4/a3)が0.2以上2以下であり、かつ崩壊強度が15gf/個以上50gf/個以下である顆粒 5質量%以上40質量%以下、並びに(B)研磨剤を含有する歯磨剤。【選択図】図1
