337
Expansion screws
Special expansion screws
Neo-Bertoni 3D
Material: stainless steel
• anatomical, individually adjustable three dimensional screw
• front segment can be adapted individually to the palate
• two independently controlled movements (symmetrical transverse expansion)
• same total expansion per segment
With expansion screw key, straight, small – standard.
Indication: for combined transverse and protrusion movements with Y plates
Directional arrow: Plastic, neon yellow
Maximum expansion 4 x 1/4 turn REF Quantity
3.5 mm/segment = 0.40 mm/segment 600-133-10 1 piece
Three dimensional screw acc. to Bertoni – three movements (Type A)
Material: Stainless steel
• strengthened guides
• three independently controlled movements
• same total expansion per segment
With expansion screw key straight, small – standard.
Indication: for combined transverse and protrusion movements with Y plates
Directional arrow: printed, blue-yellow
Maximum expansion 4 x 1/4 turn REF Quantity
4.0 mm/segment = 0.35 mm/segment 602-605-10 1 piece