The tooth cleaning device has the cylindrical washing instrument. The washing instrument, has with the elastic support shaft and the connected screw thread, can turn can drive. This instrument is formed, when being between the teeth of pair, arranging the screw thread itself of the instrument which turns in the tooth between cavity, in order to remove the rubbish between the teeth.< Selective figure >Figure 1歯洗浄装置は、円筒形の洗浄器具を具える。洗浄器具は、弾性支持シャフトと、連結ねじ山とを具え、回転駆動できる。この器具は、一対の歯の間にあるとき、回転する器具のねじ山自体を歯間腔に配置して、歯間くずを取り出すように構成されている。【選択図】図1