| 摘要 |
FIELD: medical engineering. SUBSTANCE: device has frontal convex shield 1, back convex shield 2, arc-shaped base 3, through openings 4, recesses 5,6 in ribs of shield 1, recess 7 on shield 2, tongue 8 on shield 2, ribs 9,10 internal surface of shield 1, cylindrical protrusions 11 on external surface of shield 1, roller-like thickening 13 on the upper rib of shield 1, thickenings 14,15 in the anterior part of at the place back convex shield 2 joins base 3, symmetric ruptures 17 on lower fixing rib 10, recesses 18 near drop-shaped tongue 8, radii 19 of frontal convex shield 1 connection to base 3, radii 20 of back convex shield 2 connection to base 3 and rounded surfaces 21 of frontal convex shield 1 and back convex shield 2. EFFECT: enhanced effectiveness of treatment in aligning teeth. 10 cl, 5 dwg
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