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Arch adjustment appliance

  • US 10,449,016 B2
  • Filed: 09/10/2015
  • Issued: 10/22/2019
  • Est. Priority Date: 09/19/2014
  • Status: Active Grant
First Claim
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1. An appliance comprising:

  • a removable shell formed of a first material having a number of cavities formed therein;

    wherein the number of cavities are shaped to receive teeth of a patient;

    wherein the removable shell has an arch width between a first side of the removable shell positioned on a first side of the patient'"'"'s mouth and a second side of the removable shell positioned on a second side of the patient'"'"'s mouth;

    a sheet of material forming an arch element extending from the removable shell in a lingual direction and across at least a portion of the arch width of the removable shell;

    wherein the arch element is designed to expand an arch of the teeth of the patient and has a width specific to a stage of a treatment plan;

    wherein the arch element is formed of the first material and a second material, and the second material is different in at least one material property than the first material and is more resilient than the first material; and

    wherein at least a part of the arch element has a corrugated surface.

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