... , (4) Sub-Mento Vertex (SMV) in AP mode.• Accessories for positioning: bite block, chin rest, optional temporo-mandibularadjustable resting bars, cephalostat and ... , (4) Sub-Mento Vertex (SMV) in AP mode.• Accessories for positioning: bite block, chin rest, optional temporo-mandibularadjustable resting bars, cephalostat and ...