| 摘要 |
<p>PROBLEM TO BE SOLVED: To enhance the suction without scattering dust that is produced when a workpiece to be fitted inside the oral cavity is repolished, and also enhance the workability without causing fatigue to an operator, and further make it replaceable while considering hygiene and maintenance. SOLUTION: A chair 1 that is used at the time when a workpiece is fitted inside the oral cavity in dental treatment is made up of a rotatable seat part 3 and an armrest part 13 that is rotatable to the set 3, and the armrest part 13 is provided with a suction device body 17 for sucking the dust and the like that is produced at the time of grinding of the workpiece, and the suction part 19 of this suction device body 17 is provided so as to be housed to the underside or the side part of the armrest part 13 and so as to be adjustable in the approching or reversing direction to the position of the seat part 3, and also the suction part 19 is detachably provided to the suction device body 17.</p> |
