Stable dental analog

• US 20030044753A1
• Filed: 01/24/2002
• Published: 03/06/2003
• Est. Priority Date: 08/31/2001
• Status: Active Grant

• Current Assignee: CLM Analogs LLC
• Original Assignee: Leonard Marotta
• Inventors: Marotta, Leonard
• Granted Patent: US 7,059,856 B2
• Time in Patent Office: Days
• US Class Current: 433/173
• CPC Class Codes: A61C 1/084 of implanting tools
• CPC Class Codes: A61C 13/0004 Computer-assisted sizing or machining of dental prostheses
• CPC Class Codes: A61C 13/081 Making teeth by casting or moulding
• CPC Class Codes: A61C 13/1009 Anchorage members, e.g. pins or bars; Means or methods for affixing pins to porcelain teeth
• CPC Class Codes: A61C 8/0001 Impression means for implants, e.g. impression coping
• CPC Class Codes: A61C 8/0096 Implants for use in orthodontic treatment
• CPC Class Codes: A61C 8/0098 Immediate loaded implants
• CPC Class Codes: A61C 9/004 Means or methods for taking digitized impressions
• CPC Class Codes: B33Y 80/00 Products made by additive manufacturing

Abstract

An implant analog includes an abutment that can be mounted in the dental lab replica of the relevant section of a patient'"'"'s mouth more securely than heretofore possible. Because of the implant analog, a crown will attach more accurately to the implant in the patient'"'"'s mouth. The analogs have a pin or other protrusion that projects from the base of the analog. The analog has substantially the same height and dimensions as a conventional implant and abutment.

Claims

1. An anchored anti-rotation analog post for preparing dental crown for insertion into the mouth of patient, said analog post comprising:

an elongated pin having opposite top and bottom ends;

said pin having at least one anti-rotation anchoring projection extending discretely and radially from said pin near said bottom end thereof.

2. The device of claim 1 wherein said pin has a circular cross-section.

3. The device of claim 1 wherein said pin has an elliptical cross-section.

4. The device of claim 1 wherein said pin has a polygonal cross-section.

5. The device of claim 4 wherein said pin has a triangular cross-section.

6. The device of claim 4 wherein said pin has a square cross-section.

7. The device of claim 4 wherein said pin has a rectangular cross-section.

8. The device of claim 4 wherein said pin has a hexagonal cross-section.

9. The device of claim 1 wherein said at least one anchoring projection comprises a pair of opposing radially extending projections.

10. The device of claim 1 wherein said at least one anchoring projection comprises at least two pairs of opposing radially extending projections.

11. The device of claim 9 wherein said at least two pairs of said opposing radially extending projections are spaced apart longitudinally on said pin near said bottom end thereof.

12. The device of claim 9 wherein said at least one pair of opposing radially extending anchoring projections comprises rigid loops.

13. The device of claim 9 wherein said at least one pair of opposing radially extending anchoring projections comprises rigid rods.

14. The device of claim 9 wherein said at least one pair of opposing radially extending anchoring projections comprises rigid plates having a center slot, said center slot disposed in a matching slot disposed in the lower end of said pin, said lower-end pin slots for receiving and securing said rigid plates.

15. The device of claim 9 wherein said at least one pair of opposing radially extending anchoring projections comprises rigid serrated barbs.

16. The device of claim 15 wherein said barbs are tapered to have a smaller radial extension toward the lower end of said pin.

17. The device of claim 15 wherein said barbs are tapered to have a smaller radial extension toward the upper end of said pin.

18. The device of claim 10 wherein said at least two pairs of said opposing radially extending projections are spaced apart longitudinally on said pin near said bottom end thereof.

19. The device of claim 10 wherein said at least one pair of opposing radially extending anchoring projections comprises rigid loops.

20. The device of claim 10 wherein said at least one pair of opposing radially extending anchoring projections comprises rigid rods.

21. The device of claim 10 wherein said at least one pair of opposing radially extending anchoring projections comprises rigid plates having a center slot, said center slot disposed in a matching slot disposed in the lower end of said pin, said lower-end pin slots for receiving and securing said rigid plates.

22. The device of claim 10 wherein said at least one pair of opposing radially extending anchoring projections comprises rigid serrated barbs.

23. The device of claim 22 wherein said barbs are tapered to have a smaller radial extension toward the lower end of said pin.

24. The device of claim 22 wherein said barbs are tapered to have a smaller radial extension toward the upper end of said pin.

25. The device of claim 9 wherein said pin comprises a receptacle sleeve for securely receiving a conventional dental crown analog post.

26. The device of claim 10 wherein said pin comprises a receptacle sleeve for securely receiving a conventional dental crown analog post.

27. A method of preparing dental crowns efficiently and accurately, comprising the steps of

a. preparing an analog dental crown mounting pin having at least one pair of radially extending anchoring extensions disposed near a bottom end of said pin;

b. inserting bottom-end-down said prepared mounting pin into a dental crown casting mold;

c. securing said prepared mounting pin temporarily in place within said casting mold;

d. adding settable plastic molding material to said casting mold so as to embed said bottom end of said pin by surrounding said bottom end of said pin with said plastic molding material;

e. allowing said plastic molding material to set and harden with said prepared pin embedded within said molding material;

f. proceeding with conventional steps in dental crown-making based upon utilization of said firmly anchored and secured analog pin.

28. The method of claim 27 wherein said pin comprises at least one pair of anchoring projections oppositely and radially extending from a bottom end of said pin.

29. The method of claim 27 wherein said pin comprises at least two pairs of anchoring projections oppositely and radially extending from a bottom end of said pin and wherein said at least two pairs of said projections are spaced apart longitudinally on said pin near said bottom end thereof.

30. The method of claim 28 wherein said at least one pair of opposing radially extending anchoring projections comprises rigid loops.

31. The method of claim 28 wherein said at least one pair of opposing radially extending anchoring projections comprises rigid rods.

32. The method of claim 28 wherein said at least one pair of opposing radially extending anchoring projections comprises rigid plates having a center slot, said center slot disposed in a matching slot disposed in the lower end of said pin, said lower-end pin slots for receiving and securing said rigid plates.

33. The method of claim 28 wherein said at least one pair of opposing radially extending anchoring projections comprises rigid serrated barbs.

34. The method of claim 33 wherein said barbs are tapered to have a smaller radial extension toward the lower end of said pin.

35. The method of claim 33 wherein said barbs are tapered to have a smaller radial extension toward the upper end of said pin.

36. The method of claim 29 wherein said at least one pair of opposing radially extending anchoring projections comprises rigid loops.

37. The method of claim 29 wherein said at least one pair of opposing radially extending anchoring projections comprises rigid rods.

38. The method of claim 29 wherein said at least one pair of opposing radially extending anchoring projections comprises rigid plates having a center slot, said center slot disposed in a matching slot disposed in the lower end of said pin, said lower-end pin slots for receiving and securing said rigid plates.

39. The method of claim 29 wherein said at least one pair of opposing radially extending anchoring projections comprises rigid serrated barbs.

40. The method of claim 39 wherein said barbs are tapered to have a smaller radial extension toward the lower end of said pin.

41. The method of claim 39 wherein said barbs are tapered to have a smaller radial extension toward the upper end of said pin.