Login| Sign Up| Help| Contact|

Patent Searching and Data


Title:
A DENTAL RESTORATIVE DEVICE AND METHOD OF USING THE SAME
Document Type and Number:
WIPO Patent Application WO/2015/105945
Kind Code:
A4
Abstract:
A dental restorative device is shown as comprising a first cured or hardened layer in the form of an occlusal surface of the tooth being restored and a second uncured dental composite layer joined to the first layer enabling a dental professional to perform direct dental restoration procedures with results replicating indirect direct dental restoration procedures. A system comprising the multi-layered dental restorative device and packaging provides for sufficient support and protection of the uncured second layer and facilitates positioning and finishing of the dental restorative device by cooling the uncured portions to a rigid state while in the packaging, positioning the dental restorative device, and modifying the second layer to fit, curing the second layer and permanently placing the fully cured and hardened dental crown on the tooth being restored.

Inventors:
MCDONALD, Simon, P. (4b Sheffield Street, Katikati, 3129, 3129, NZ)
AUBONE, Alejandro (4b Sheffield Street, Katikati, 3129, 3129, NZ)
Application Number:
US2015/010579
Publication Date:
September 24, 2015
Filing Date:
January 08, 2015
Export Citation:
Click for automatic bibliography generation   Help
Assignee:
RHONDIUM IP LIMITED (4 Sheffield Street, Katikati, 3129, 3129, NZ)
International Classes:
A61C5/09
Attorney, Agent or Firm:
SWIDLER, Sean, S. et al. (IpHorgan Ltd, 195 Arlington Heights Rd.Ste. #12, Buffalo Grove IL, 60089, US)
Download PDF:
Claims:
AMENDED CLAIMS

received by the International Bureau on 03 August 2015 (03.08.2015)

1. A dental restorative device for use in a restoration of an affected tooth requiring restoration from a damaged state to a restored state replicating a natural, undamaged tooth, the dental restorative device comprising:

a) a first layer composed of a first dental restoration material and formed into a first end-use configuration; and

b) a second layer fixed to the first layer and composed of a first uncured dental composite material in a second end-use configuration forming a plurality of sidewalls replicating a buccal, lingual, mesial and distal sidewall of the natural, undamaged tooth.

2. The dental restorative device of Claim 1 wherein the first dental restoration material composing the first layer is a cured dental composite material.

3. The dental restorative device of Claim 1 wherein the first dental restoration material composing the first layer is a hardened dental ceramic.

4. The dental restorative device of Claim 1 wherein the first end-use configuration of the first layer replicates an occlusal surface of the natural, undamaged tooth.

6. The dental restorative device of Claim 1 wherein the first layer is a cured anatomical occlusal layer.

7. The dental restorative device of Claim 1 wherein the first layer is a heat-treated anatomical occlusal layer.

8. The dental restorative device of Claim 1 wherein the second layer is a user configurable, uncured sub-layer enabling in situ customization of the dental restorative device.

9. The dental restorative device of Claim 1 further comprising a handle integrally formed with the second layer.

10. The dental restorative device of Claim 1 further comprising a handle integrally formed with the first layer.

11. A method of restoring an affected tooth of a patient requiring restoration from a damaged state to a restored state replicating a natural, undamaged tooth, the method comprising the steps of:

a) providing a dental restorative device comprising a first layer composed of a first dental restoration material prepared and formed into a first end-use configuration and a second layer joined to the first layer and composed of a user configurable uncured dental composite material in a second end-use configuration;

b) cooling the second layer composed of the uncured dental composite material to a rigid form;

c) positioning the dental restorative device with the cooled, rigid and uncured second layer onto the affected tooth with a prepared restoration site and allowing the cooled, rigid and uncured second layer to warm;

d) configuring the warmed second layer and adjusting the dental restorative device to the bite registration of the patient;

e) removing the dental restorative device from the restoration site and curing the second layer; and

f) re-positioning the dental restorative device with the cured second layer and permanently joining the dental restorative device to the affected tooth at the restoration site.

12. The method of Claim 1 1 further comprising the step of storing the dental restorative device in packaging comprising an outer casing and an inner form, the outer casing comprising a lid and a bottom and the inner form supporting the uncured, second layer of the dental restorative device in the second end-use configuration.

13. The method of Claim 12 further comprising the step of removing the inner form from the outer casing prior to the cooling step and removing the dental restorative device with the cooled, rigid second layer from the inner form after the cooling step.

14. The method of Claim 11 further comprising the step of using a selector key to confirm a mesial-distal measurement of the restoration site and selecting the dental restorative device having a size corresponding to the mesial-distal measurement of the restoration site.

15. The method of Claim 1 1 further comprising the step of preparing the restoration site of the affected tooth by removing an existing dental restoration or a damaged area of the affected tooth.

16. The method of Claim 11 further comprising the step of positioning a replica restoration of the dental restorative device in the prepared restoration site to test and confirm the positioning of the dental restoration device in relation to a first and second adjacent tooth and a first opposing tooth.

17. the method of Claim 1 1 further comprising the step of applying a separating agent to the restoration site of the affected tooth and a first and second adjacent tooth before the step of positioning the dental restorative device with the cooled, rigid second layer at the restoration

29 site to preclude the uncured second layer from prematurely bonding to the restoration site or adjacent teeth.

18. The method of Claim 1 1 wherein the step of permanently joining the cured dental restorative device to the restoration site comprises cementing the cured dental restorative device to the restoration site.

19. The method of Claim 1 1 wherein the step of permanently joining the cured dental restorative device to the restoration site comprises bonding the cured dental restorative device to the restoration site.

20. The method of Claim 1 1 wherein the first dental restoration material composing the first layer is a cured dental composite material.

21. The method of Claim 1 1 wherein the first dental restoration material composing the first layer is a hardened dental ceramic.

22. The method of Claim 1 1 wherein the first end-use configuration of the first layer replicates an occlusal surface of the natural, undamaged tooth.

23. The method of Claim 1 1 wherein the second end-use configuration of the second layer forms a plurality of sidewalls replicating a buccal, lingual, proximal and distal sidewall of the natural, undamaged tooth.

24. The method of Claim 11 wherein the dental restorative device further comprises a handle integrally formed with the first layer.

30

25. The method of Claim 24 further comprising the step of trimming the handle from the first layer before the step of permanently joining the cured dental restorative device to the restoration site of the affected tooth.

26. The method of Claim 11 wherein the dental restorative device further comprises a handle.

27. The method of Claim 26 further comprising the step of spot curing the handle after the step of configuring the warmed second layer and adjusting the dental restorative device to the bite registration of the patient and trimming the cured handle from the second layer before the permanently joining the cured dental restorative device to the restoration site of the affected tooth.

28. The method of claim 11 further comprising the step of spot curing the dental restorative device after the step of configuring the warmed second layer and adjusting the dental restorative device to the bit registration of the patient.

29. A dental restorative device and packaging system for storing, preparing and dispensing a dental restorative device for use in a restoration of an affected tooth requiring restoration from a damaged state to a restored state replicating a naturel, undamaged tooth, the dental restorative device and packaging system comprising:

a) a dental restorative device comprising a first layer composed of a first dental restoration material prepared and formed into a first end-use configuration and a second layer fixed to the first layer and composed of an uncured dental composite material in a second, end-use configuration forming a plurality of sidewalls replicating a buccal, lingual, mesial and distal sidewall of the natural, undamaged tooth; and

31 b) packaging comprising an outer casing and an inner form, the outer casing comprising a lid and a bottom mechanically locked together, and the inner form adhered to the bottom and comprising a mold formed to store and support the uncured, second layer of the dental restorative device in the second end-use configuration.

30. The dental restorative device and packaging system of Claim 29 wherein the first dental restoration material composing the first layer is a cured dental composite material.

31. The dental restorative device and packaging system of Claim 29 wherein the first dental restoration material composing the first layer is a hardened dental ceramic.

32. The dental restorative device and packaging system of Claim 29 wherein the first end-use configuration of the first layer is an anatomical occlusal surface replicating an occlusal of the natural, undamaged tooth.

34. The dental restorative device and packaging system of Claim 29 further comprising a handle integrally formed with the second layer.

35. The dental restorative device and packaging system of Claim 29 further comprising a handle integrally formed with the first layer.

36. The dental restorative device of Claim 29 wherein the first layer is a cured anatomical occlusal layer.

37. The dental restorative device of Claim 29 wherein the first layer is a heat-treated anatomical occlusal layer.

32

38. The dental restorative device of Claim 29 wherein the second layer is a user configured, uncured sub-layer enabling in situ customization of the dental restorative device.

39. The dental restorative device and packaging system of Claim 29 wherein the inner form comprises a chamber for receiving the dental restorative device, the chamber composed of a material with a high thermal conductivity rating to facilitate cooling of the dental restorative device stored therein.

40. The dental restorative device and packaging system of Claim 29 wherein the inner form is composed of a material with a high thermal conductivity rating to facilitate cooling of the dental restorative device stored therein.

41. The dental restorative device and packaging system of Claim 29 wherein the inner form sits on a platform portion of the bottom of the outer casing and the lid comprises a chamber with a first depth sufficient to receive the inner form chamber.

42. The dental restorative device and packaging system of Claim 29 wherein the outer casing is composed of a light transmission inhibiting material.

43. The dental restorative device and packaging system of Claim 29 wherein the inner form is composed of a light transmission inhibiting material.

44. The dental restorative device and packaging system of Claim 29 wherein the mechanical locking together of the lid and bottom inhibits ambient light transmission into the chamber in the lid.

33

45. The dental restorative device and packaging system of Claim 29 wherein the mechanical locking is an annular snap-fit from corresponding ridges on the lid and bottom of the outer casing.

46. The dental restorative device and packaging system of Claim 29 wherein the lid comprises a plurality of sidewalls separating the inner chamber into a plurality of compartments.

47. The dental restorative device and packaging system of Claim 46 wherein the sidewalls extend towards a platform portion of the bottom substantially separating the plurality of compartments when the lid is mechanically locked to the bottom.

48. A kit for use in restoration of an affected tooth requiring restoration from a damaged state to a restored, undamaged state replicating a natural, undamaged tooth, the kit comprising:

a) dental restorative devices in a plurality of sizes, each dental restorative device comprising a first layer composed of a first dental restoration material prepared and formed into a first end-use configuration and a second layer fixed to the first layer and composed of an uncured dental composite material in a second, end-use configuration forming a plurality of sidewalls replicating a buccal, lingual, mesial and distal sidewall of the natural, undamaged tooth and enabling customized shaping and finishing of the second layer;

b) packaging comprising an outer casing and an inner form, the outer casing comprising a lid and a bottom each with corresponding grooves to mechanically join and lock the top to the bottom, and the inner form adhered to the bottom and comprising a mold formed to support the uncured, second layer of the dental restorative device in the second end-use configuration; and

34 c) a selector key corresponding to the plurality of sizes of dental restorative devices in the kit.

49. The kit of Claim 48 further comprising a carving tool for shaping the second layer and removing uncured dental composite material during preparation of the dental restorative device, and a separating agent to be applied to the affected tooth and adjacent dentition during preparation and installation of the dental restorative device.

50. The kit of Claim 48 wherein the selector key comprises a first edge and a second, stepped edge opposing the first edge and forming a plurality of widths of varying dimension between the first and second edges and each of the varying dimensions corresponds to a size of the plurality of dental restorative devices in the kit.

35