The hinge is fitted to the inner bow of the side not to be distalized and the outer bow on this side is shortened to the position in line with the first molar.
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Bio-Low-Cervical-Pull
Elastic springs incorporated into the low cervical pull allow equal asymmetrical continuous forces onto the molars to be distalised.
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Bio-High-Pull
Through the use of most modern springs a continuous force of about 450 g per spring is exerted and thus educes treatment time and improves patient comfort.
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