Special Screws - Multiple Section Screws

<p><h1>Three Dimensional Screw Acc. To Bertoni, Stainless Steel</h1><br /><p><h2> - Units: 1 piece</h2></p>Material: Stainless steel<ul><li>strengthened guides</li><li>three independently controlled movements</li><li>same total expansion per segment</li></ul>With expansion screw key straight, small – standard.<strong><br />Indication: for combined transverse and protrusion movements with Y plates</strong><table><tr><td>Directional arrow</td><td>printed, blue-yellow </td></tr><tr><td>Maximum expansion</td><td>4.0 mm/segment </td></tr><tr><td>4 x ¹/₄ turn</td><td>: 0.35 mm/segment </td></tr></p>

<p><h1>Three Dimensional Screw Acc. To Steiner, Individually Adjustable Middle Bar, Two Movements, Stainless Steel</h1><br /><p><h2> - Units: 1 piece</h2></p>Material: Stainless steel<ul><li>strengthened guides</li><li>individually adjustable middle bar for adapting to different palatal vault curvatures</li><li>two independently controlled movements (symmetrical transverse expansion)</li><li>same total expansion per segment</li></ul>With expansion screw key straight, small – standard.<br /><strong>Indication: for combined transverse and protrusion movements with Y plates</strong><table><tr><td>Directional arrow</td><td>printed, blue-yellow </td></tr><tr><td>Maximum expansion</td><td>4.0 mm/segment </td></tr><tr><td>4 x ¹/₄ turn</td><td>: 0.35 mm/segment </td></tr></p>