Abstract: Force-transmitting means serve to exert a correcting force on at least one tooth of a patient and comprise an elongated first element and at least one second element. At least one clamping sleeve resiliently clamps itself on said first element and engages said second element and has a radially inwardly tapering longitudinal slot, which is adapted to receive an implement which is operable to widen said slot so that said clamping sleeve is slidable along said first element.

Abstract: The element is adapted to be fitted as an annular band around a tooth and to be secured to a dental appliance to hold the same in position. It includes a strip metal element having two end portions, which are adapted to overlap in the annular band, a first slide-snap fastener part, which is carried by one of the end portions and includes a tunnel member defining a tunnel passage extending longitudinally of the strip metal element, and a detent spring secured to the tunnel member and extending longitudinally in the passage, a second slide-snap fastener which is carried by the other of the end portions and includes a plurality of barblike oblique detent teeth spaced apart in the longitudinal direction of the strip metal element and movable relative to the first fastener part in a closing direction into the tunnel passage.

Abstract: The bracket according to the invention includes the following structure:Flange means provided for securing the bracket to the teeth of a patient. A bearing member having a through hole on an axis that is transversely spaced from the flange means. Connecting means connect the bearing member and the flange means and have a neck portion. A rotary catch is mounted in the bearing member for rotation on said axis and defines with said neck portion and the flange means a channel, which is disposed on one side of the bearing member and open opposite to the neck portion and adapted to receive a wire so that the latter is engageable with the neck portion. The rotary catch channel is rotatable about the axis to and from a wire-retaining position and in the wire-retaining position is adapted to retain a wire in the channel.

Abstract: A bracket has a longitudinal channel adapted to receive a wire arch. A retaining member is rotatably mounted in the bracket body and includes a retaining spider which is angularly movable to first and second retaining positions, in which the retaining spider extends across at least part of the width of the passage. The retaining spider is adapted in the first retaining position to slidably retain a wire arch in the channel and in the second retaining position to clamp a wire arch in position in the channel.