Systems and methods for intra-oral drug delivery

• US 8,075,309 B2
• Filed: 10/31/2007
• Issued: 12/13/2011
• Est. Priority Date: 11/30/2004
• Status: Active Grant

• Current Assignee: Align Technology Incorporated
• Original Assignee: Align Technology Incorporated
• Inventors: Li, Chunhua, Carlyle, Wenda C., De Smedt, Philippe, Abolfathi, Amir, Kuo, Eric E., Tricca, Robert E., Chen, Jennifer C., Wu, Benjamin M.
• Primary Examiner(s): Manahan, Todd
• Assistant Examiner(s): Patel, Yogesh
• Application Number:
  US11/982,301
• Publication Number:
  US 20080293007A1
• Time in Patent Office: 1,504 Days
• Field of Search: 433/6, 433/80, 433215-229, 433/24, 433/89, 433/81, 424/459, 604/94.01, 604/187, 604/264, 601/164, 601/165
• US Class Current: 433/80
• CPC Class Codes: A61C 19/063 Medicament applicators for teeth or gums, e.g. treatment with fluorides
• CPC Class Codes: A61C 7/00 Orthodontics, i.e. obtaining or maintaining the desired position of teeth, e.g. by straightening, evening, regulating, separating, or by correcting malocclusions
• CPC Class Codes: A61C 7/008 using vibrating means
• CPC Class Codes: A61C 7/08 Mouthpiece-type retainers or positioners, e.g. for both the lower and upper arch arch-shaped medicament applicators for teeth or gums A61C19/063; mouthguards for protecting the teeth of sportsmen A63B71/085
• CPC Class Codes: A61C 8/00 Means to be fixed to the jaw-bone for consolidating natural teeth or for fixing dental prostheses thereon; Dental implants; Implanting tools fastening of peg-teeth in the mouth A61C13/30
• CPC Class Codes: A61P 1/02 Stomatological preparations, e.g. drugs for caries, aphtae, periodontitis
• CPC Class Codes: A61P 29/00 Non-central analgesic, antipyretic or antiinflammatory agents, e.g. antirheumatic agents; Non-steroidal antiinflammatory drugs [NSAID]

Abstract

Systems and methods are disclosed for intra-oral delivery of drugs. One method embodiment includes providing a dental device with one or more reservoirs, supplying at least one of the reservoirs with the one or more substances, and fluidly releasing the one or more substances from at least one reservoir into an oral structure at different preselected doses at different predetermined time periods and in a predetermined sequence.

Claims

1. A method for delivering one or more substances, comprising:

providing a dental device comprising a shell formed of a material and the dental device configured to move a number of teeth and including one or more reservoirs formed in the shell;

supplying at least one of the reservoirs with the one or more substances;

fluidly releasing the one or more substances from at least one reservoir into a gum of a patient via a nozzle formed of the material as a portion of the shell and connected to the at least one reservoir and inserted into the gum at a first preselected dose at a first predetermined time period, wherein the nozzle is shaped to conform to the gum for prolonged placement therein; and

fluidly releasing the one or more substances from at least one reservoir into the gum via a nozzle connected to the at least one reservoir and inserted into the gum at a second preselected dose at a second predetermined time period.

2. The method of claim 1, wherein one or more of the substances is a therapeutically effective amount of a drug or a bioactive agent.

3. The method of claim 1, wherein one or more of the substances provides one or more results selected from the group of results including:

accelerating tooth movement;

decelerating tooth movement;

accelerating tooth movement by degrading collagen in the oral tissue;

accelerating tooth movement by degrading elastin in the oral tissue;

accelerating tooth movement by increasing the expression of endogenous enzymes that degrade collagen;

accelerating tooth movement by increasing the expression of endogenous enzymes that degrade elastin;

accelerating tooth movement by increasing the activity of endogenous enzymes that degrade collagen;

accelerating tooth movement by increasing the activity of endogenous enzymes that degrade elastin;

accelerating tooth movement by causing degradation of glycosaminoglycans or proteoglycans

inducing irritation of the oral structure;

inducing inflammation of a bone structure;

inducing inflammation of surrounding tissue;

inducing inflammation of a bone structure or surrounding tissue by increasing the local concentration of interleukin-1, interleukin-6, tumor necrosis factor-alpha, or transforming growth factor-beta;

relieving oral pain involved with dental movement;

relieving pain from alveolar ridge augmentation and orthognathic treatment;

providing fresh breath;

altering tooth movement by stimulating bone resorption;

altering tooth movement by reducing bone resorption; and

preventing tooth relapse by causing an increase in the number of crosslinks between tissue matrix proteins in the oral environment.

4. The method of claim 1, wherein one or more of the substances is delivered through gingiva.

5. The method of claim 4, wherein one of the substances is delivered to a specific location within the gum while a different substance is delivered to a different location within the gum.

6. The method of claim 1, further comprising:

supplying energy to the dental device.

7. The method of claim 6, wherein the energy comprises electric, light, heat, sound, magnetic or electromagnetic energy.

8. The method of claim 1, wherein fluidly releasing the one or more substances comprises fluidly releasing the one or more substances without active physical manipulation of the at least one reservoir.

9. The method of claim 1, wherein the dental device is one of a plurality of appliances designed from scans of a person'"'"'s dentition.

10. The method of claim 9, wherein at least one of the appliances is designed to dispense the first preselected dose and the second preselected dose.

11. The method of claim 9, wherein at least one of the appliances is designed to dispense the substance in a predetermined sequence.

12. The method of claim 9, wherein the dental device includes two or more appliances and wherein at least two of the appliances are designed to dispense the substance in two or more different preselected dosages for delivery at two or more different predetermined periods.

13. The method of claim 1, comprising sampling an intra-oral substance in the patient'"'"'s mouth, whether the intra-oral substance has been delivered to or is already present in the mouth;

and diagnosing a body condition based on an intra-oral substance sampling result.

14. The method of claim 13, wherein the body condition comprises a disease.

15. The method of claim 13, comprising performing a close-loop delivery of the substance within the mouth based on the intra-oral substance sampling result.

16. The method of claim 13, comprising transmitting the intra-oral substance sampling result to a remote computer for diagnosis.

17. The method of claim 1, wherein one or more of the substances contains at least one of the following active ingredients:

trypsin;

elastase;

papain;

aminobenzoate potassium;

cathepsin;

amylolytic enzyme;

proteolytic enzyme;

celluloytic enzyme;

lipase;

prostaglandin E2;

prostaglandin F2alpha;

heparin;

relaxin;

conconavalen A;

nicotine;

hyaluronidase;

alpha-L-iduronidase;

catabolin;

estradiol;

genipin;

carbodiimide;

glutaraldehyde;

formaldehyde;

1,6-diaminohexane;

bioflavonoids;

or reducing sugars such as glucose, ribose, or derivatives thereof.

18. The method of claim 1, wherein one or more of the substances alters tooth movement by stimulating or reducing bone resorption.

19. The method of claim 1, wherein one or more of the substances contains a bisphosphonate.

20. The method of claim 1, wherein supplying at least one of the reservoirs with one or more substances includes loading a first substance in a first reservoir and loading a second substance in a second reservoir.

21. The method of claim 20, wherein the first substance is different from the second substance.

22. The method of claim 20, wherein the first substance is the same as the second substance.

23. The method of claim 20, wherein supplying at least one of the reservoirs with one or more substances includes loading a third substance in a third reservoir, wherein the first and third substances are different from the second substance.

24. The method of claim 1, wherein the substance comprises analgesics.