The present invention relates to an orthodontic device, the device is characterized by comprising: a single wire provided on the labial side or the lingual side of the teeth involved in orthodontic treatment in a lower group of teeth or the teeth in an upper group of teeth an adhesive which is adhered to the teeth in question and is then cured so as to be secured thereto while covering the single wire a soluble substance which is formed on the single wire and is subsequently dissolved in order to prevent adhesion of same to the adhesive and an archwire which is moved in the axial direction after having been inserted into the adhesive once the soluble substance has been dissolved and the single wire has been removed from same in order to effect tooth-body movement. In contrast to the prior art, in the present invention the archwire is inserted into a space in the adhesive formed following dissolution of the soluble substance after the adhesive has been attached to respective teeth involved in the orthodontic straightening treatment while covering the circumference of the single wire coated with the soluble substance or the soluble substance in solid form, and thus the present invention makes it possible to improve aesthetics as compared with existing brackets due to the adhesive, and makes it possible to reduce inconvenience to a person receiving orthodontic treatment as size is reduced, and also possible to prevent caries.La présente invention concerne un dispositif orthodontique, le dispositif étant caractérisé en ce quil comprend : un fil unique présent sur le côté labial ou le côté lingual des dents impliquées dans un traitement orthodontique comprises dans un groupe inférieur de dents ou des dents comprises dans un groupe supérieur de dents un adhésif qui est amené à adhérer aux dents en question et qui est ensuite durci de façon à y être fixé tout en recouvrant le fil unique une substance soluble qui est formée sur le fil unique et qui est par la suite dissou
