Abstract: The orthodontic bracket according to the present invention is provided with ligating means having a simple configuration, has additional functions for improving therapeutic effect and improving aesthetic appearance and enables maintenance to be carried out easily. A movable slider portion 2 for pinching an upper portion and a lower portion of an archwire to hold the archwire is provided in order to hold the archwire with respect to a bracket body 1 that has a slot 5 for holding the archwire. This slider portion 2 is inserted into the bracket body 1 to thereby hold the archwire 6. An orthodontic bracket composed of the bracket body 1 and the slider portion 2 has aesthetic properties by having a rounded shape with few surface irregularities. The slider portion 2 can be readily moved with an operating tool 14 and can be easily attached and detached.

Abstract: The orthodontic bracket according to the present invention is provided with ligating means having a simple configuration, has additional functions for improving therapeutic effect and improving aesthetic appearance and enables maintenance to be carried out easily. A movable slider portion 2 for pinching an upper portion and a lower portion of an archwire to hold the archwire is provided in order to hold the archwire with respect to a bracket body 1 that has a slot 5 for holding the archwire. This slider portion 2 is inserted into the bracket body 1 to thereby hold the archwire 6. An orthodontic bracket composed of the bracket body 1 and the slider portion 2 has aesthetic properties by having a rounded shape with few surface irregularities. The slider portion 2 can be readily moved with an operating tool 14 and can be easily attached and detached.

Abstract: An orthodontic supporting structure of the present invention comprises an implant unit which is implantable in a jaw bone and a connecting unit which includes an arm part having a fastening portion. The implant unit has a narrow part in its upper portion. The connecting unit further includes an engaging part having an opening at one end. The engaging part fits on the narrow part of the implant unit. The connecting unit can be attached to the implant unit in a simple way by sliding the engaging part along the narrow part and then crimping far ends of the engaging part.

Abstract: An orthodontic supporting structure of the present invention comprises an implant unit (21) which is implanted in a jaw bone and a connecting unit (22) which includes an arm part (14) having a fastening portion (15). The implant unit (21) has a narrow part (18) in its upper portion (17). The connecting unit (22) further includes an engaging part (26) having an opening (16a) at one end. The engaging part (26) can fit on the narrow part (18) of the implant unit (21). The connecting unit (22) can be attached to the implant unit (21) in a simple way by just sliding the engaging part (26) along the narrow part (18) and then crimping far ends (26b) of the engaging part (26).

Abstract: The present invention provides a supporting body for use in an orthodontic appliance capable of applying a force to the tooth to be treated from the most preferable position. The supporting body includes an implant member having a maximum dimension across the thereof cross section of 2 mm or less for being implanted in a jaw bone (i.e. the maxilla and/or mandibula), and an exposed member forming one end of the supporting body to be exposed to inside of mouth. The exposed portion includes an extended arm and the arm is formed with a hook.

Abstract: An orthodontic appliance includes a configuration which makes it difficult for dental plaque to be deposited thereon and which prevents lateral movement of an arch wire as well as precisely preforming a torque shift without an auxiliary attachment wire. The orthodontic appliance is used in dental treatment includes a bracket having an arch wire passage formed therein to extend substantially horizontally and a lock pin insertion passage for insertion of a lock pin therethrough, the lock pin being substantially vertically oriented between the surface of a tooth and the arch wire passage for pressing the arch wire toward a side further from the tooth surface to thereby position the arch wire. The lock pin insertion passage has a bow-shape jetting toward the tooth surface and the lock pin is bow-shaped such that the following mathematical expression is satisfied:R.sub.P .ltoreq.R.sub.Lwherein R.sub.P is a radius of curvature of the lock pin insertion passage and R.sub.