Granted Patent B2

US 12,414,843 · App. 17/499,671 · Granted Sep 16, 2025

Inventors: Tom Stratton (Carlsbad, CA); Steven Pelote (Carlsbad, CA); Maxwell McKinnon (Carlsbad, CA); Eller Torres (Carlsbad, CA); Michael Schulzki (Carlsbad, CA)

Assignee: ZEST IP HOLDINGS, LLC

A61C8/0024A61C8/0016A61C8/0025A61C8/0056A61C8/0069

Abstract

Claims (45)

1. A dental assembly, comprising:

a) an abutment member having an external lower portion;

b) an endosseous dental implant comprising:

(i) a first end portion having a top and a bottom, the first end portion comprises:

(1) an external projection extending from the top of the first end portion for releasable engagement with the abutment member; and

(2) an annular cuff portion defining an annular seat; and wherein the external lower portion of the abutment member contacts and seats on the annular seat to form a line of connection when the abutment member is releasably engaged with the external projection, wherein the line of connection is located slightly below a patient's gum line when the implant is secured in the mouth of the patient; and

(ii) a threaded post which extends from the bottom of the first end portion for direct engagement into the patient's bone or tissue;

c) a first retention member having a first end and a continuous, unbroken skirt extending from the first end defining an inner surface for fixed, non-patient removable, engagement over an outer locating surface of the abutment member, the first retention member being constructed from a rigid material such that it provides a retentive force of between 10 to 75 pounds, such that upon engagement over the outer locating surface of the abutment member, the first retention member is non-patient removable from the abutment member, wherein the rigid material comprises polyetheretherketone (PEEK);

d) a cap configured for securing in a dental appliance and engaging the first retention member, and

e) wherein the abutment member is sized and dimensioned for engagement with a replacement retention member made of a more resilient material than the first retention member and having a second end and a continuous, unbroken skirt extending from the second end defining a second inner surface for patient removable engagement over the outer locating surface of the abutment member, in place of the first retention member.

2. The dental assembly of claim 1 , wherein the threaded post is angled relative to the external projection of the endosseous dental implant.

3. The dental assembly of claim 2 , wherein the threaded post is angled between 10-20 degrees relative to the external projection of the endosseous dental implant.

4. The dental assembly of claim 3 , wherein the threaded post is angled 15 degrees relative to the external projection of the endosseous dental implant.

5. The dental assembly of claim 2 , wherein the threaded post is angled between 25-35 degrees relative to the external projection of the endosseous dental implant.

6. The dental assembly of claim 5 , wherein the threaded post is angled 30 degrees relative to the external projection of the endosseous dental implant.

7. The dental assembly of claim 1 , wherein the threaded post comprises a single lead thread or multiple lead threads.

8. The dental assembly of claim 1 , wherein the threaded post comprises opposing axial cuts adapted for self-tapping into the patient's bone or tissue.

9. The dental assembly of claim 1 , wherein the dental implant has a maximum outside diameter between 1.5 mm and 4.0 mm.

10. The dental assembly of claim 1 , wherein the threaded post comprises two successive threads of different pitch.

11. The dental assembly of claim 1 , wherein the annular cuff portion may be of different heights to accommodate different tissue depths.

12. A dental assembly, comprising:

a) an abutment member having an external lower portion;

b) an endosseous dental implant having a maximum outside diameter between 1.5 mm and 4.0 mm, and comprising:

(i) a first end portion having a top and a bottom, the first end portion comprises:

(1) an external projection extending from the top of the first end portion for releasable engagement with the abutment member; and

(2) an annular cuff portion defining an annular seat; and wherein the external lower portion of the abutment member contacts and seats on the annular seat to form a line of connection when the abutment member is releasably engaged with the external projection, wherein the line of connection is located slightly below a patient's gum line when the implant is secured in the mouth of the patient; and

(ii) a threaded post which extends from the bottom of the first end portion for direct engagement into the patient's bone or tissue, wherein the threaded post comprises two successive threads of different pitch;

c) a first retention member having a first end and a continuous, unbroken skirt extending from the first end defining an inner surface for fixed, non-patient removable, engagement over an outer locating surface of the abutment member, the first retention member being constructed from a rigid material such that it provides a retentive force of between 10 to 75 pounds, such that upon engagement over the outer locating surface of the abutment member, the first retention member is non-patient removable from the abutment member, wherein the rigid material comprises polyetheretherketone (PEEK);

d) a cap configured for securing in a dental appliance and engaging the first retention member, and

e) wherein the abutment member is sized and dimensioned for engagement with a replacement retention member made of a more resilient material than the first retention member and having a second end and a continuous, unbroken skirt extending from the second end defining a second inner surface for patient removable engagement over the outer locating surface of the abutment member, in place of the first retention member.

13. The dental assembly of claim 12 , wherein the threaded post comprises opposing axial cuts adapted for self-tapping into the patient's bone or tissue.

14. The dental assembly of claim 12 , wherein the threaded post is angled relative to the external projection of the endosseous dental implant.

15. A dental assembly, comprising:

a) an abutment member having an external lower portion;

b) an endosseous dental implant having a maximum outside diameter between 1.5 mm and 4.0 mm, and comprising:

(i) a first end portion having a top and a bottom, the first end portion comprises:

(1) an external projection extending from the top of the first end portion for releasable engagement with the abutment member; and

(2) an annular cuff portion defining an annular seat; and wherein the external lower portion of the abutment member contacts and seats on the annular seat to form a line of connection when the abutment member is releasably engaged with the external projection, wherein the line of connection is located slightly below a patient's gum line when the implant is secured in the mouth of the patient; and

(ii) a threaded post which extends from the bottom of the first end portion for direct engagement into the patient's bone or tissue, wherein the threaded post comprises opposing axial cuts adapted for self-tapping into the patient's bone or tissue;

c) a first retention member having a first end and a continuous, unbroken skirt extending from the first end defining an inner surface for fixed, non-patient removable, engagement over an outer locating surface of the abutment member, the first retention member being constructed from a rigid material such that it provides a retentive force of between 10 to 75 pounds, such that upon engagement over the outer locating surface of the abutment member, the first retention member is non-patient removable from the abutment member, wherein the rigid material comprises polyetheretherketone (PEEK);

d) a cap configured for securing in a dental appliance and engaging the first retention member, and

e) wherein the abutment member is sized and dimensioned for engagement with a replacement retention member made of a more resilient material than the first retention member and having a second end and a continuous, unbroken skirt extending from the second end defining a second inner surface for patient removable engagement over the outer locating surface of the abutment member, in place of the first retention member.

16. The dental assembly of claim 15 , wherein the threaded post comprises two successive threads of different pitch.

17. The dental assembly of claim 15 , wherein the threaded post comprises a single lead thread.

18. The dental assembly of claim 15 , wherein the threaded post is angled relative to the external projection of the endosseous dental implant.

Assignments (3)

Continuity (3)

References Cited (69)