Optically clear tooth positioning and retaining appliance
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United States of America Patent
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-
Jul 2, 1991
Issued Date -
N/A
app pub date -
Apr 8, 1987
filing date -
Nov 22, 1982
priority date (Note) -
Expired
status (Latency Note)
Importance
Abstract
An optically clear custom tooth positioning and retaining appliance made in a flask or mold device having mold members from an elastomeric or resilient thermoplastic material with the capability of having optically clear transparentness. After the appliance has been trimmed and/or buff polished subsequent to molding thereof which causes the appliance to have a frosty or translucent appearance, the exterior surfaces of the appliance has been subjected to a source of concentrated heat to cause surface melting which produces transparentness, cooling the appliance before, during and after heating as needed to preserve its integrity, and optionally utilizing the mold members from the flask or reproductions thereof in the archways of the appliance during heating thereof.
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