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Methods of Designing and Manufacturing Customized Dental Prosthesis For Periodontal or Osseointegration and Related Systems

  • US 20190282331A1
  • Filed: 06/05/2019
  • Published: 09/19/2019
  • Est. Priority Date: 10/16/2006
  • Status: Active Grant
First Claim
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1. A method of manufacturing a dental implant to replace a non-functional natural tooth positioned in a jawbone of a specific pre-identified patient, the method comprising the steps of:

  • receiving and accessing data describing an in-vivo dental anatomy of the specific pre-identified patient associated with the non-functional natural tooth prior to removal from the jawbone of the specific pre-identified patient, the in-vivo dental anatomy to include a three-dimensional outer surface shape of at least portions of a root of the non-functional natural tooth, and a three-dimensional outer surface shape of at least portions of a crown of the non-functional natural tooth and surrounding gum tissue to define received data comprising received in-vivo imaging data;

    forming at least one three-dimensional virtual model of at least portions of the non-functional natural tooth positioned in the jawbone of the specific pre-identified patient responsive to at least portions of the received in-vivo imaging data, the at least one three-dimensional virtual model of the non-functional natural tooth including a modeled virtual root portion and a modeled virtual crown portion; and

    designing the dental implant based upon the at least one three-dimensional virtual model of at least portions of the non-functional natural tooth, the step of designing the dental implant including the steps of;

    deriving a virtual occlusally-facing prosthesis interface shape from a virtual reduction of at least a substantial portion of the modeled virtual crown portion;

    forming a virtual dental implant body modeling a dental implant body, the virtual dental implant body including the virtual occlusually-facing prosthesis interface shape modeling a prosthesis interface of the dental implant body to receive an occlusally-facing dental prosthesis component, the virtual occlusually-facing prosthesis interface shape to include a substantially three-dimensionally contoured custom surface shape correlated to a corresponding surface shape of the modeled virtual crown portion, andforming a virtual occlusally-facing dental prosthesis component modeling an occlusally-facing dental prosthesis component, the step of forming the virtual occlusally-facing dental prosthesis component including forming a complementing virtual dental implant body-receiving surface to define a complementing virtual interface surface modeling a complementing interface surface to receive occlusally-facing portions of the dental implant body, the prosthesis interface and the complementing interface surface to create a form locking fit therebetween,wherein the step of forming a virtual dental implant body includes;

    separating a portion of the at least one three-dimensional virtual model along a virtual bone-facing gum line representation, the separated portion including the modeled virtual root portion to define a virtual root body portion model,copying at least portions of the modeled virtual crown portion, the copy to include at least portions of the modeled virtual crown portion forming a base shape of the prosthesis interface,reducing dimensions of the at least portions of the modeled virtual crown portion to define a prosthesis interface model, andcombining the virtual prosthesis interface model with the virtual root body portion model to form the virtual dental implant body;

    wherein the step of forming the virtual occlusally-facing dental prosthesis component comprises defining virtual dimensions of an occlusally-facing surface to define a virtual transgingival cap model of a transgingival cap, the dimensions of the transgingival cap model being larger than the dimensions of the virtual prosthesis interface model; and

    wherein the method further comprises the step of forming a virtual crown component model modeling a crown component of the dental implant, to include forming a complementing virtual transgingival cap-receiving surface modeling a transgingival cap-receiving surface of the crown component shaped and positioned to receive occlusally-facing portions of the transgingival cap.

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