Abstract: An orthodontic bracket having a slot formed by arm parts facing each other in the vertical direction, and an inner part, inserted into the slot, having a socket for holding a wire is disclosed. The shape of the socket is designed for applying desired forces to a tooth through the wire when the bracket is attached to the tooth. Forces can be changed simply by changing the inner part; replacing the bracket attached to the tooth. When the inner part is inserted into the slot, the inner part closes the slot and it is held in the position by the arm parts; enabling the wire to be securely held in its position.

Abstract: An orthodontic device consisting of a bracket having a slot formed by arm parts facing each other in the vertical direction, and an inner part having a socket for holding a wire. Different forces depending on the socket can be applied to a tooth. Desired forces can be applied simply by changing the inner part; and without requiring changing of the brackets. The orthodontic device is characterized in that the opening of the slot is closed by inserting the inner part into the slot so that the inner part can be held by the arm parts; and the wire can be securely held in its position.

Abstract: An orthodontic device consisting of a bracket having a slot formed by arm parts facing each other in the vertical direction, and an inner part having a socket for holding a wire. The orthodontic device is characterized in that the opening of the slot is closed by inserting the inner part into the slot so that the inner part can be held by the arm parts. Different torque depending on the socket can be applied to a tooth. A desired torque can be applied by only changing the inner part without changing the bracket.

Abstract: An orthodontic device, wherein a wire is held on a slot by a simple structure but a complicated structure. The orthodontic device comprises a bracket (10) having the slot (30) formed by arm parts (12, 13) facing each other in the vertical direction and an inner part (20) having a socket (24) for holding the wire (40). The orthodontic device is characterized in that the opening (32) of the slot is closed by inserting the inner part (20) into the slot (30) so that the inner part can be held by the arm parts (12, 13).

Abstract: An orthodontic bracket of the present invention is an orthodontic bracket to be attached through adhesive to an individual tooth in an alignment of teeth including a tooth to be corrected comprising two claws faced to each other, the two claws forming therebetween an engaging slot for engaging an arch wire and the engaging slot having a T-shaped cross section, and a fixed spacer provided on the bottom of the engaging slot.

Abstract: An object of the present invention is to provide a retainer wire which can solve problems of a conventional retainer wire and improve the extractive strength of the joint portion of a plastic portion and a metal wire portion. The present invention is directed to retainer wire including: a holding portion formed in the shape of a circular arc so as to be able to be in contact with a dentitition; and a metal wire metal extended from both ends of said holding, portion; wherein said holding portion is made of a synthetic resin having transparency and a specified mechanical strength; and wherein the supporting portion is formed together with the holding portion into one body.

Abstract: An object of the present invention is to increase the adhesive strength of the polycarbonate bracket for correcting dentition.The bracket for correcting dentition comprises a polycarbonate bracket, an adhesive layer being applied to the bottom surface of the bracket and subjected to an irradiation of a microwave and a plastically deformable photocuring resin layer being applied to the adhesive layer.

Abstract: An object of the present invention is to increase the adhesive strength of the polycarbonate bracket for correcting dentition.The bracket for correcting dentition comprises a polycarbonate bracket, an adhesive layer being applied to the bottom surface of the bracket and subjected to an irradiation of a microwave and a plastically deformable photocuring resin layer being applied to the adhesive layer.

Abstract: A supplementary device is provided for sliding operation for use in a device for correcting teeth irregularities. The supplementary device abuts a bracket, and has a wire-engaging slit having the same shape as a slit in the bracket so that a wire engaged in the bracket can also be engaged in the slit. The supplementary device has a pair of protrusions which forms a T-shape. The projections are used to anchor a rubber band. The supplementary device is slidable along the wire and slides until stopped, for example by the bracket.

Abstract: An indicator for using in setting a device for teeth irregularities including a wire extending along with a dentition, a bracket in which the wire is inserted, the bracket being fixed to a surface of each tooth in a manner that a pillow-like shaped base plate is interposed between the bracket and the surface, the indicator including: a backbone member extending along with a longitudinal axis in the tooth; a leg member connected with a lower end of the backbone member; a first arm member connected with an upper end of the backbone member, the first arm member extending parallel to the leg member; a device for carrying the bracket for slidably carrying in a slidable manner, the device being connected with the backbone member at intermediate portion of the backbone member; and at least one second arm member connected with the backbone member at intermediate portion between a position where the means is connected and another position where the leg member is connected the second arm member extruding parallel to th

Abstract: A device for correcting teeth irregularities includes a bracket to be fixed on a tooth. The bracket has a slit, and a base plate is interposed between the bracket and the surface to be fixed to the tooth. A wire is inserted into the slit and engaged with the bracket. The base plate has a thickness which is in a range of 0.5 to 5 mm, and the base plate is composed of an easily plastically deformable resin on a surface to be fixed to the tooth. The base plate is capable of deforming to allow the bracket to be inclined at an angle relative to the vertical direction.

Abstract: A supplementary device for use in a device for correcting teeth irregularities includes a bracket having a slit with a T-shaped section and a wire to be inserted into the slit and engaged with the bracket. The wire has an elongated projection, and the supplementary device includes a wire engaging slit having substantially the same shape as the slit in the bracket. At least one protrusion is adapted for engaging a resilient band, and the bracket is slidable along the wire.