Abstract: A self-ligating orthodontic brace comprising a base, a body, a groove that is configured to receive an orthodontic archwire and has an opening emerging in the direction of the occlusion plane, and a movable element for closing the groove that is configured to move between a position of closing and a position of opening the groove. The brace comprises a single lock for the movable element in the position of closing and also comprising a holder to hold the movable element in the position of opening the groove.

Abstract: A seated exercise apparatus comprises a frame having a seat attached to the frame. A pair of opposed cranks are rotatably coupled to the frame such that they rotate about a first axis. A medial portion of each of a pair of elongated members is rotatably connected to the frame at a second axis. A first end of each elongated member has a handle and a second end of each elongated member is rotatably connected to a one end of a respective pedal arm. The handles may be adjustable to invert the handles from an upper position to a lower position. The other end of each pedal arm is in turn rotatably connected to a respective crank. Each pedal arm also has a pedal adapted to receive a user's foot. In operation, the apparatus provides the user with coordinated seated exercise of both the arms/hands and legs/feet.