PROBLEM TO BE SOLVED: To provide a toothbrush which enables massage inside the oral cavity corresponding to a position to the nasolabial lines with usual toothbrushing motions, vanishes the nasolabial lines in the face and prevents their generation beforehand.SOLUTION: Another face of a brush part 3 of a toothbrush 1 which is composed of a handle part 2 for being held by the hand and a brush part 3 whose whole surface is planted with brush bristles 5 is attached with a massage body 4 for vanishing the nasolabial lines P which is formed swelling with soft and elastic material. The massage body 4 is formed in almost trapezoidal shape or almost fan-like form whose cross-sectional shape is rounded in the corners, or in almost a triangle whose apexes are rounded. Furthermore, the brush part 3 is formed by bending inwards from the end of the handle part 2, and the brush part 3 is formed by extending outside the root part of the brush bristle 5.COPYRIGHT: (C)2011,JPO&INPIT【課題】普段の歯磨き動作によって豊麗線位置に相当する口腔内側をマッサージ可能にし、これにより顔面の豊麗線を消失させたり、その発生を未然に防止したりする。【解決手段】手で把持する柄部2と、一面にブラシ毛5を植設したブラシ部3とから成る歯ブラシ1のブラシ部3他面に、軟弾性素材によって膨出形成した豊麗線P消失用のマッサージ体4を設ける。マッサージ体4は、その断面形状が角部に丸味を帯びた略台形状もしくは略扇形状、あるいは頂点が丸味を帯びた略三角形状に形成する。また、ブラシ部3は、柄部2先端から内側に曲げて成り、さらにブラシ部3は、ブラシ毛5根元部分を外側に拡げて成る。【選択図】図1
