All BioBiteCorrector (BBC) versions can be used to fabricate a BBC Twin appliance. The BioBiteCorrector versions MS and SP are screw-connected to a square wire, which is polymerized into an active plate (Schwartz plate).
If patient compliance is insufficient, the BBC hinge can be unscrewed from the Schwartz plate and later fixed to a multi-bracket appliance on the same patient.
The BioBiteCorrector SA (without compression spring) and the BioBiteCorrector FA (with compression spring) Versions with a flat wire connector are directly polymerized into resin.
The flat wire connectors are placed centrally on the 1st premolar in the lower jaw and on the 1st molar in the upper jaw. They do not have to be placed interproximally like the screw connectors.