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Vertically-indexed posterior bite plates

  • US 4,439,149 A
  • Filed: 09/16/1982
  • Issued: 03/27/1984
  • Est. Priority Date: 09/16/1982
  • Status: Expired due to Fees
First Claim
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1. An orthodontic appliance comprising:

  • an upper bite plate including a vertical anterior-facing indexing plane, said upper bite plate secured to the upper posterior teeth;

    a lower bite plate including a vertical posterior-facing indexing plane, said lower bite plate bearing against the lower front teeth, said vertical posterior-facing indexing plane contacting said vertical anterior-facing indexing plane to prevent retraction of said lower bite plate and sliding on said vertical anterior-facing indexing plane as the jaw opens and closes.

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