Abstract: The orthodontic archwire bracket comprises a base body (10) having a base element (11) to be fixed to a tooth and a bracket body (20) having a socket element (25) surrounded by a perimetric wall (32) including two opposed slot portions (21a, 21b) forming a slot (21) to receive an archwire. The base and bracket bodies (10, 20) are connected by a ball and socket joint coupling. The perimetric wall (32) has a slit (33) providing a gap. A control element (60) mounted on the bracket body (20) is changeable between locking and unlocking positions to expand or constrict the bracket body (20) by increasing or reducing the gap. The ball and socket joint coupling is locked by friction when the control element (50) is in the locking position and the ball and socket joint coupling is unlocked enabling relative movement in three coordinate axes when the control element (50) is in the unlocking position.

Abstract: The orthodontic archwire bracket comprises a base body (10) having a base element (11) to be fixed to a tooth and a bracket body (20) having a socket element (25) surrounded by a perimetric wall (32) including two opposed slot portions (21a, 21b) forming a slot (21) to receive an archwire. The base and bracket bodies (10, 20) are connected by a ball and socket joint coupling. The perimetric wall (32) has a slit (33) providing a gap. A control element (60) mounted on the bracket body (20) is changeable between locking and unlocking positions to expand or constrict the bracket body (20) by increasing or reducing the gap. The ball and socket joint coupling is locked by friction when the control element (50) is in the locking position and the ball and socket joint coupling is unlocked enabling relative movement in three coordinate axes when the control element (50) is in the unlocking position.

Abstract: An orthodontic archwire bracket having a first body (10) with a base (11) configured to be fixed to a tooth and a second body (20) with a central hollow portion (25) and a slot (21) formed by two slot portions (21a, 21b) on opposite sides of the central hollow portion (25). The slot (21) is configured to receive an archwire. A ball joint coupling connects the first and second bodies (10, 20). The second body (20) is made at least in part of a material with shape memory that maintains an original shape at body temperature thus locking the ball joint coupling, and acquires a deformable state at a temperature below body temperature. In one embodiment, the second body (20) further has retaining members (26) extending into each of the slot portions (21a, 21b) next to an inlet thereof.

Abstract: An orthodontic archwire bracket that includes a first body (10) with a base (11) configured to be fixed to a tooth and a second body (20) with a central hollow portion (25) and a slot (21) formed by two slot portions (21a, 21b) on opposite sides of the central hollow portion (25). The slot (21) is configured to receive an archwire. The first and second bodies (10, 20) are connected by a ball joint coupling, and the second body (20) is made of a material with shape memory that maintains an original shape at body temperature and acquires a deformable state at a temperature below body temperature. The second body (20) further includes retaining members (26) extending into each of said slot portions (21a, 21b) next to an inlet thereof.