Orthodontic retainer
First Claim
1. A maxillary retainer comprising a resin plate retained to a palatal periphery that has clasps at both ends thereof, is embedded with a substantially U-shaped reinforcing wire extending along the inside of the dentition and a bridge wire coupling both the clasps and traversing a posterior edge of a palate thereof, includes unevenness fitting with inside surfaces of the teeth, and is formed in a shape with most portions thereof hollowed out leaving a part of 4 to 5 mm from a contour periphery thereof where the reinforcing wire and the bridge wire are embedded, wherein the reinforcing wire extending from the clasps and the bridge wire are brazed to each other, and the periphery of the resin plate has a thickness minimized to a height of a cervix region at an anterior teeth region and piled the same as conventional retainer at posterior teeth.
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0 Petitions
Accused Products
Abstract
The present invention relates to an orthodontic retainer to be fitted to an orthodontically treated dentition in order to fix the teeth in their orthodontic treatment state. In particular, the present invention relates to an orthodontic retainer that achieves, for example, improvement of strength of the retainer, improvement of wearing comfort and esthetics, reduction in cost, and improvement of a function as the retainer.
203 Citations
33 Claims
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1. A maxillary retainer comprising a resin plate retained to a palatal periphery that has clasps at both ends thereof, is embedded with a substantially U-shaped reinforcing wire extending along the inside of the dentition and a bridge wire coupling both the clasps and traversing a posterior edge of a palate thereof, includes unevenness fitting with inside surfaces of the teeth, and is formed in a shape with most portions thereof hollowed out leaving a part of 4 to 5 mm from a contour periphery thereof where the reinforcing wire and the bridge wire are embedded,
wherein the reinforcing wire extending from the clasps and the bridge wire are brazed to each other, and the periphery of the resin plate has a thickness minimized to a height of a cervix region at an anterior teeth region and piled the same as conventional retainer at posterior teeth.
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19. A mundibular retainer comprising a resin plate that has clasps at both ends thereof, includes a labial arch wire extending along outside surfaces of the dentition and unevenness fitting with inside surfaces of the teeth, and is hollowed out leaving a portion 4-5 mm from a contour periphery thereof where a substantially U-shaped reinforcing wire extending along the inside of the dentition is embedded,
wherein the reinforcing wire and the labial arch wire are brazed to each other, the periphery of the resin plate has a thickness thereof minimized to a height of a cervix region at an anterior teeth region and piled the same as conventional retainer at posterior teeth, and resin on a lingual surface of anterior teeth is divided, and an enlarged wire is added along a lower portion of the resin plate.
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20. A mundibular retainer comprising a resin plate that has clasps at both ends thereof, includes unevenness fitting with inside surfaces of the teeth, and is hollowed out leaving a portion 4-5 mm from a contour periphery thereof where a substantially U-shaped reinforcing wire extending along the inside of the dentition is embedded,
wherein the periphery of the resin plate has a thickness thereof minimized to a height of a cervix region at an anterior teeth region and piled the same as conventional retainer at posterior teeth, and the resin plate is provided with an incision in a median portion at anterior teeth thereof such that an omega loop is added to the wires exposed from the incision.
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21. A mandibular retainer comprising:
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a resin plate that has clasps at both ends thereof, includes unevenness fitting with inside surfaces of the teeth, and is hollowed out leaving a portion 4-5 mm from a contour periphery thereof where a substantially U-shaped reinforcing wire extending along the inside of the dentition embedded;
a lip pad and a buccal shield including a retaining wire, which has opposed ends thereof joined to the reinforcing wire that includes the clasps and forms a loop frame surrounding a part of the reinforcing wire and a part of the dentition, and a resin pad in which a part of the retaining wire is embedded, wherein the reinforcing wire and the retaining wire are brazed to each other and the periphery of the resin on the dentition side having a thickness minimized a the height of a crown bulge region at a prosterior teeth region in the same manner as the conventional retainer, and the resin pad of the lip pad and the buccal shield is retained at a position opposed to the outside surface of the gingival region with a gap formed in the position in a state in which the retainer is fitted to the dentition. - View Dependent Claims (22, 23, 24)
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25. A mandibular retainer comprising a resin plate that has clasps at both ends thereof, includes unevenness fitting with inside surfaces of the teeth, and is hollowed out leaving a portion 4-5 mm from a contour periphery thereof where a substantially U-shaped reinforcing wire extending along the inside of the dentition is embedded,
wherein the periphery of the resin plate having its thickness minimized to the height of a cervix region at an anterior teeth region and piled resin the same as conventional retainer at posterior teeth, and the unevenness fitting with inside surfaces of the teeth is fitted with the inside surfaces of the anterior teeth to which a coupling wire is directly bonded.
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32. A retainer that is fitted to an orthodontically treated dentition to retain the dentition such that the dentition does not relapse to a state before orthodontic treatment,
wherein a bent metal wire is jointed to a main wire, which is disposed along a cervix of the lingual surface of the dentition, to be fitted to the cervix of the respective teeth such that the teeth are retained.
Specification