| 摘要 |
A generally horseshoe shaped clear flexible resilient plastic wire-imbedded orthodontic appliance (10) is made with a plastic portion (12) having contou rs (26) to snugly cover the patient~s teeth (34) so that the appliance (10) remains in place. One or more flexible wires (18) are imbedded within the lingual side (14) of the plastic portion from the left molar area to the rig ht molar area of the plastic portion (12), in order to apply force on the lingu al side of the patient~s bite. The applicance (10) is formed by obtaining a plaster cast of the patient~s teeth and gums, removing plaster teeth from th e palster cast of the gums, reattaching the plaster teeth to the plaster cast of the gums to form a cast of proper bite alignment, attaching one or more wire s to the labial surface of the aligned plaster teeth so the wires become imbedded within thermosetting plastic placed over the cast, putting the cast in a thermosetting plastic molding machine, and heating the thermosetting plastic around the cast of the proper bite alignment, so the wires are imbedded within the formed appliance after the thermosetting plastic cools. A series of appliances (10) may be used to shift a patient~s bite to proper bi te orientation.
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