Abstract: The invention relates to a retaining unit (lingual retainer) for Orthodontic treatment in particular for treating incisors (4 to 7) of lower and/or upper jaws, in particular for avoiding the return for formation a tertiary front overlapping by means of a tension element which is pasted (adhesive point 12) to each tooth (2 to 7) and forms a plastic shaped component (8) compatible with a mouth cavity.

Abstract: The invention relates to a ball joint for a device used for accelerating jaw growth, comprising a ball joint head and a ball joint socket that are fastened to the ends of a spring bar and to retaining elements connected to the teeth of the upper jaw and/or of the lower jaw, whereby the ball joint heads and the ball joint sockets are detachably connected to one another, to the spring bar and to the retaining elements.

Abstract: The invention relates to a ball joint for a devise used for accelerating jaw growth, comprising a ball joint head and a ball joint socket that are fastened to the ends of a spring bar and to retaining elements connected to the teeth of the upper jaw and/or of the lower jaw, whereby the ball joint heads and the ball joint sockets are detachably connected to one another, to the spring bar and to the retaining elements.