Magnetic orthodontic appliance
OwnerAbraham M. Blechmaninventor
Life of this patent
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Abstract
An orthodontic appliance for intraorally distalizing teeth without patient compliance, comprising a pair of small complementary permanent magnetic elements, each having a coaxial hole for slidably mounting the magnets on a single common sectional wire, in an arrangement to repel one another, with each element having a protective coating to prevent corrosion and leaching. Additional means are provided for urging the magnetic elements along the sectional wire into predetermined proximity as the molar tooth or teeth distalize. This arrangement avoids undesirable eccentric magnetic movement, maximizes control of the repelling horizontal magnetic forces, and maintains a substantially constant distalizing force without the need for constant readjustment.
Claims15
An orthodontic appliance for distalizing a posterior tooth or teeth without surgical extraction, comprising a plurality of anchoring bands adapted to be mounted to certain selected teeth on a single arch of a patient inclusive of the posterior tooth or teeth to be distalized, and at least one proximal tooth anterior thereto;
- an edgewise member affixed to the anchoring band on the posterior tooth to be distalized, bracket means affixed to the other band(s);
- an orthodontic sectional wire extending from said edgewise member to said bracket means;
- and a pair of permanent magnets, each having a hole axially extending through the symmetrical center thereof, and a protective coating surrounding each magnet and each hole, with said magnets slidably mounted on said sectional wire through said holes in an arrangement to repel one another, with the magnet on the distal side of said sectional wire abutting said edgewise member, and with the other magnet in close proximity thereto, and means for securing said magnet on the mesial side of said sectional wire relative to the proximal tooth or teeth supporting said bracket means.
Dependencies are inferred from the claim text.