Abstract: The tool for removing orthodontic O-rings includes a handle, which is adapted for gripping by an orthodontist and has opposed first and second ends, a neck and a hooked head. The neck has opposed first and second ends, and the second end thereof is secured to the first end of the handle. The hooked head has free and fixed ends, and the fixed end is secured to the first end of the neck. The free end of the hooked head defines a sharp tip. An annular flange is located at an interface between the fixed end of the hooked head and the first end of the neck. The annular flange has a diameter greater than a diameter of the fixed end of the hooked head and greater than a diameter of the first end of the neck.

Abstract: The invention relates to an orthodontic system which comprises a main wire having first and second end sections and at least one looped section there between, and a support wire, the main wire further having at least one coupling means for coupling to the support wire, the coupling means being arranged on the at least one looped section, and fastening means for fastening the main wire and the support wire to a patient's teeth.

Abstract: The reverse headgear with neck strap has: a forehead-cap adapted to engage a patient's forehead; a chin-cap adapted to engage the patient's chin; and a frame interconnecting the forehead-cap and the chin-cap. The frame has side portions extending between the forehead-cap and the chin-cap defining rearward extending loops. A neck strap is releasably connected to the loops on opposite sides of the frame by hooks, the neck strap passing behind the patient's neck in order to apply a traction force to the chin cap to draw the mandible posteriorly. An M-shaped hook is attached to the chin-cap and extends in front of a mouth of the patient, the hook being configured to receive a tension applying elastic element attachable to the patient's upper teeth in order to apply anterior traction to the maxilla, thereby correcting a class III malocclusion by tensioning the maxilla forward and the mandible rearward.

Abstract: The reverse headgear with neck strap has: a forehead-cap adapted to engage a patient's forehead; a chin-cap adapted to engage the patient's chin; and a frame interconnecting the forehead-cap and the chin-cap. The frame has side portions extending between the forehead-cap and the chin-cap defining rearward extending loops. A neck strap is releasably connected to the loops on opposite sides of the frame by hooks, the neck strap passing behind the patient's neck in order to apply a traction force to the chin cap to draw the mandible posteriorly. An M-shaped hook is attached to the chin-cap and extends in front of a mouth of the patient, the hook being configured to receive a tension applying elastic element attachable to the patient's upper teeth in order to apply anterior traction to the maxilla, thereby correcting a class III malocclusion by tensioning the maxilla forward and the mandible rearward.

Abstract: The oral retractor is provided for retracting at least a portion of a patient's mouth. The oral retractor is formed from single, continuous closed-loop strand of stainless steel wire. The oral retractor includes a superior lip-engaging portion for retracting the patient's upper lip away from the upper teeth and gums, and an inferior lip-engaging portion for retracting the patient's lower lip away from the patient's lower teeth and gums. Bilateral arcuate cheek-engaging portions extend posteriorly from the lip-engaging portions for retracting the patient's cheeks away from the teeth and gums. The lip-engaging portions are formed from linear portions defining tented arches that extend anteriorly, and the superior lip-engaging portion may be canted upward, while the inferior lip-engaging portion may be canted downward. The cheek-engaging portions may be substantially parabolic. The retractor may be substantially symmetrical about planes bisecting the retractor vertically and horizontally.

Abstract: The invention relates to an orthodontic system which comprises a main wire having first and second end sections and at least one looped section there between, and a support wire, the main wire further having at least one coupling means for coupling to the support wire, the coupling means being arranged on the at least one looped section, and fastening means for fastening the main wire and the support wire to a patient's teeth.

Abstract: A device for measuring the skeletodental relationship of a human skull directly from a cephalometric radiograph or from a hand tracing of the craniofacial structures includes a flat transparent plate-like structure. The plate-like structure has a generally rectangular shape with a zero point and two protractors spaced one below the other and superimposed on a zero point. The protractors include radial lines from 0° to 90° for a first of the protractors and from 90° to 0° for a second of the protractors. Further, the 0° line in the first protractor is parallel with the 90° line in the second protractor. The 0° line in the second is parallel with the 90° line in the first. Further, three vertical scales are provided on the right hand edge and top of the device with two of the scales on the right hand edge, but ascending in different directions.

Abstract: A device for measuring the skeletodental relationship of a human skull directly from a cephalometric radiograph or from a hand tracing of the craniofacial structures includes a flat transparent plate-like structure. The plate-like structure has a generally rectangular shape with a zero point and two protractors spaced one below the other and superimposed on a zero point. The protractors include radial lines from 0° to 90° for a first of the protractors and from 90° to 0° for a second of the protractors. Further, the 0° line in the first protractor is parallel with the 90° line in the second protractor. The 0° line in the second is parallel with the 90° line in the first. Further, three vertical scales are provided on the right hand edge and top of the device with two of the scales on the right hand edge, but ascending in different directions.