Claims
- 1. A set of endodontic instruments for preparing an endodontic cavity space, the set comprising:
a first endodontic instrument; a second endodontic instrument; and a third endodontic instrument, each endodontic instrument including a working portion that has a cone-like shape, each working portion having an effective contact area defined by the exposed surface area of the working portion's respective cone-like shape, the difference between the effective contact areas of the first endodontic instrument and second endodontic instrument being substantially the same as the difference between the effective contact areas of the second endodontic instrument and third endodontic instrument.
- 2. The set of claim 1, further comprising:
a fourth endodontic instrument; a fifth endodontic instrument; a sixth endodontic instrument, the difference between the effective contact areas of the third and fourth endodontic instruments being substantially the same as the difference between the effective contact areas of the fourth and fifth endodontic instruments and also as the difference between the effective contact areas of the fifth and sixth endodontic instruments.
- 3. The set of claim 1, wherein:
at least on of the instruments includes a cross section that is asymmetrical.
- 4. The set of claim 3, wherein:
at least one of the instruments includes a quadrilateral cross section.
- 5. The set of claim 4, wherein:
at least one of the instruments includes a trapezoidal cross section.
- 6. The set of claim 3, wherein:
at least one of the instruments includes a triangular cross section.
- 7. The set of claim 1, wherein:
at least one of the instruments includes a square cross section.
- 8. The set of claim 1, wherein:
at least one of the instruments is made of Nickel Titanium, includes a center of mass that is off the longitudinal axis, and is configured to swagger when rotated at operational speeds about the longitudinal axis.
- 9. The set of claim 1, wherein:
at least one of the instruments includes a reversed helix.
- 10. The set of claim 1, wherein:
at least one of the instruments includes flutes having cross cuts.
- 11. The set of claim 1, wherein:
at least one of the instruments includes flutes having rolled edges, whereby the flutes are operable to haul but not cut.
- 12. The set of claim 1, wherein:
at least one of the instruments includes S-shaped splines.
- 13. The set of claim 1, wherein:
the instruments are operable for preparing a curved endodontic cavity space.
- 14. The set of claim 1, wherein:
the instruments are operable for preparing a straight endodontic cavity space.
- 15. An endodontic instrument for preparing an endodontic cavity space, comprising:
a body that is configured to rotate about axis of rotation, the body having a center of mass that is off the axis of rotation, wherein the body is made of NiTi, and wherein the body is operable to swagger when rotated about the axis of rotation.
- 16. A set of endodontic instruments for preparing an endodontic cavity space, the set comprising:
a first endodontic instrument; a second endodontic instrument; and a third endodontic instrument, wherein each endodontic instrument has a longitudinal axis, wherein each endodontic instrument has a cross sectional area at a predetermined point on its longitudinal axis, the predetermined point being the same for the endodontic instruments of the set; and wherein the difference between the cross sectional areas of the first and second endodontic instruments is substantially the same as the difference between the cross sectional areas of the second and third endodontic instruments.
- 17. The set of claim 16, wherein:
the predetermined point is at substantially the same depth as the fulcrum of an endodontic cavity space when the instrument is fully inserted in to the endodontic cavity space.
- 18. The set of claim 16, wherein:
the predetermined point is 6 millimeters away from the tip.
- 19. The set of claim 16, wherein:
one of the instruments of the set has a center of mass that is off the rotation of axis of the drill bit, wherein the drill bit is made of NiTi, and wherein the drill bit is operable to swagger when rotated at operational speeds about the axis of rotation.
- 20. The set of claim 16, wherein:
one of the instruments includes a reversed helix.
Parent Case Info
[0001] This application claims the benefit of U.S. Provisional Applications Ser. No. 60/467,472, filed May 1, 2003, Ser. No. 60/477,688, filed Jun. 10, 2003, and U.S. application Ser. No. 10/764,337, filed on Jan. 22, 2004, which are hereby incorporated by reference in their entireties.
Provisional Applications (2)
|
Number |
Date |
Country |
|
60467472 |
May 2003 |
US |
|
60477688 |
Jun 2003 |
US |