| 摘要 |
FIELD: medical engineering. SUBSTANCE: device has elastic metal arch and bearing metal rings with tubes where arch ends and rings w hooks are mounted. Arch ends are movably mounted in the tubes and bents are done for thrusting against the tubes. The arch is made suitable in its middle part for laying it on the hooks and fixing with ligature wires. The arch is curved for being fixable on the dental row. Curvatures for changing teeth positions are available in frontal part of the arch and changing their shape by a doctor. EFFECT: enhanced effectiveness in moving teeth in vestibular direction without violating engagement conditions with antagonist teeth and of the tongue with the palatine. 2 dwg |
