Dental implant and prosthesis positioning

• US 5,915,962 A
• Filed: 11/03/1997
• Issued: 06/29/1999
• Est. Priority Date: 11/03/1997
• Status: Expired due to Fees

• Current Assignee: Joel L. Rosenlicht
• Original Assignee: Joel L. Rosenlicht
• Inventors: Rosenlicht, Joel L.
• Primary Examiner(s): WEHNER, CARY ELLEN
• Application Number:
  US08/963,279
• Time in Patent Office: 603 Days
• Field of Search: 433/172, 433/173, 433/174, 433/175, 433/176, 433/76, 433/75
• US Class Current: 433/76
• CPC Class Codes: A61C 1/084 of implanting tools
• CPC Class Codes: A61C 19/055 Paralleling devices
• CPC Class Codes: A61C 8/0089 Implanting tools or instruments

Abstract

A kit for building a model for guiding the drilling of plural guide holes into the jaw bone of a dental patient for guiding the forming of plural adjacent cavities for the installation of plural adjacent implants and a method for guiding the drilling of such cavities are disclosed.

Claims

1. A kit for building a model for guiding the drilling of plural guide holes into the jaw bone of a dental patient for guiding the forming of plural adjacent cavities for the installation of plural adjacent implants comprising:

a plurality of individual elongate generally cylindrical tooth emulations which generally replicate as to cross-sectional size and shape a natural tooth, some of which differ from each other as to size and shape, each of which is constructed to define an axis of rotation corresponding generally to the axis of the cylindrical configuration, each of which is so constructed as to define a pilot guide hole extending approximately along said axis of rotation, and means for connecting a plurality of said tooth emulations in an articulated manner for relative movement and relative axial orientation to each other.

2. The kit of claim 1 wherein the means for connecting comprises a key extending from one side of each tooth emulation and a receptacle for said key formed in the opposed side of each tooth emulation.

3. A method for fabricating a guide for drilling a guide hole into the at an edentulous site adjacent at least one existing tooth on the jaw bone of a dental patient from which a natural tooth has been removed or lost for guiding the forming an adjacent cavity for the installation of an adjacent implant comprising the steps of:

positioning on the edentulous site of the patient'"'"'s jaw or on a model of the edentulous site of the patient'"'"'s jaw adjacent at least one existing tooth an individual elongate generally cylindrical or modified cylindrical tooth emulation that generally replicates as to size and shape the natural tooth that was at such site, said emulation being so constructed as to define an axis of rotation corresponding generally to the axis of the cylindrical configuration and being so constructed as to define a pilot guide hole extending approximately along said axis of rotation;

orienting the axis of the tooth emulation to cause the pilot guide in the tooth emulation to be directed toward the portion of the jaw bone into which the cavity for receiving an implant is to be formed; and

luting the tooth emulation to an adjacent tooth into a rigid model that when in the patient'"'"'s mouth at the edentulous site can be used for drilling through the pilot guides a guide hole in the patient'"'"'s jaw to provide orientation and positioning of a cavity for receiving an implant cavity.

4. A method for drilling a guide hole into the at an edentulous site adjacent at least one existing tooth on the jaw bone of a dental patient from which a natural tooth has been removed or lost for guiding the forming an adjacent cavity for the installation of an adjacent implant comprising the steps of:

positioning on the edentulous site of the patient'"'"'s jaw or on a model of the edentulous site of the patient'"'"'s jaw adjacent at least one existing tooth an individual elongate generally cylindrical or modified cylindrical tooth emulation that generally replicates as to size and shape the natural tooth that was at such site, said emulation being so constructed as to define an axis of rotation corresponding generally to the axis of the cylindrical configuration and being so constructed as to define a pilot guide hole extending approximately along said axis of rotation;

orienting the axis of the tooth emulation to cause the pilot guide in the tooth emulation to be directed toward the portion of the jaw bone into which the cavity for receiving an implant is to be formed;

securing the tooth emulation to an adjacent tooth into a rigid model that when in the patient'"'"'s mouth at the edentulous site can be used for drilling through the pilot guide a guide hole in the patient'"'"'s jaw to provide orientation and positioning of a cavity for receiving an implant cavity; and

while the rigid model is in the patient'"'"'s mouth at the edentulous site, drilling through said pilot guide a guide hole in the patient'"'"'s jaw to provide orientation and positioning of a cavity for receiving an implant cavity.

5. The method of claim 4 wherein the securing step comprises extending luting material to adjacent existing teeth or replicas of such adjacent existing teeth.

6. An individual elongate tooth emulation that generally replicates as to lateral cross-sectional size and shape a natural tooth, said emulation being generally cylindrical or modified cylindrical having first and seconds ends that are generally flat or concave and so constructed as to define an axis of rotation corresponding generally to the axis of the cylindrical configuration and being so constructed as to define a pilot guide hole extending approximately along said axis of rotation and means formed in said emulation for permitting articulated connection to another such tooth emulation.

7. The tooth emulation of claim 6 further comprising means extending therefrom for permitting articulated connection to another such tooth emulation.

8. An individual elongate tooth emulation that generally replicates as to lateral cross-sectional size and shape a natural tooth, said emulation being generally cylindrical or modified cylindrical having first and seconds ends that are generally flat or concave and so constructed as to define an axis of rotation corresponding generally to the axis of the cylindrical configuration and being so constructed as to define a pilot guide hole extending approximately along said axis of rotation and means extending therefrom for permitting articulated connection to another such tooth emulation.

9. A method for fabricating guide for drilling plural guide holes into the jaw bone of a dental patient for guiding the forming of plural adjacent cavities for the installation of plural adjacent implants comprising the steps of:

selecting and positioning on the edentulous portion of the patient'"'"'s jaw or on a model of the edentulous portion of the patient'"'"'s jaw to generally replicate the natural teeth that were removed or lost from the patient a plurality of individual elongate generally cylindrical tooth emulations which generally replicate as to cross-sectional size and shape a natural tooth, some of which differ from each other as to size and shape, each of which is so constructed as to define an axis of rotation corresponding generally to the axis of the cylindrical configuration, each of which is so constructed as to define a pilot guide hole extending approximately along said axis of rotation, and means associated with said tooth emulations for connecting a plurality of said tooth emulations in an articulated manner for relative movement and relative axial orientation to each other;

orienting the axis of the respective tooth emulations to cause the respective pilot guides in the respective tooth emulations to be directed toward the portion of the jaw bone into which the cavity for receiving an implant is to be formed; and

luting the tooth emulations into a rigid model that can be used as a guide in the patient'"'"'s mouth for drilling through the pilot guides a plurality of guide holes in the patient'"'"'s jaw.

10. A tooth emulation comprising a unitary body so configured as to define an overall generally cylindrical body that as to cross-sectional size and shape generally replicates that portion of a natural tooth that extends outwardly from the gum line, said body defining an imaginary axis of rotation about which the body would rotate generally symmetrically, said body having generally flat ends and defining a pilot guide hole extending approximately along said axis of rotation and means for attaching said emulation to another such tooth emulation.

11. A dental drill guide forming kit comprising a plurality of tooth emulations of different sizes and shapes, each such tooth emulation comprising a unitary body so configured as to define an overall generally cylindrical body that as to cross-sectional size and shape generally replicates that portion of a natural tooth that extends outwardly from the gum line, said body defining an imaginary axis of rotation about which the body would rotate generally symmetrically, said body having generally flat ends and defining a pilot guide hole extending approximately along said axis of rotation, said tooth emulations being constructed and configured to define means for attaching a plurality of such tooth emulations together in an articulated manner for permitting independent axial orientation of the respective tooth emulations.

12. A dental drill guide comprising a plurality of tooth emulations, each such emulation comprising a unitary body so configured as to define an overall generally cylindrical body that as to cross-sectional size and shape generally replicates that portion of a natural tooth that extends outwardly from the gum line, said body defining an imaginary axis of rotation about which the body would rotate generally symmetrically, said body having generally flat ends and defining a pilot guide hole extending approximately along said axis of rotation and means rigidly securing said tooth emulations together adjacent each other.

13. The dental drill guide of claim 12 wherein the securing means comprises solidified dental luting material.