U.S. patents available from 1976 to present.
U.S. patent applications available from 2005 to present.

Disposable dental tray for topical application of fluoride gel and other dental medications

Patent 4138814 Issued on February 13, 1979. Estimated Expiration Date: Icon_subject December 22, 1997. Estimated Expiration Date is calculated based on simple USPTO term provisions. It does not account for terminal disclaimers, term adjustments, failure to pay maintenance fees, or other factors which might affect the term of a patent.

Patent References

3224441

3224443

3319626

3339547

3379193

3399457

3505995

Inventor

Assignee

Application

No. 05/863216 filed on 12/22/1977

US Classes:

433/215METHOD OR MATERIAL FOR TESTING, TREATING, RESTORING, OR REMOVING NATURAL TEETH

Examiners

Primary: Peshock, Robert

Attorney, Agent or Firm

International Classes

A61C 19/06 (20060101)
A61C 19/00 (20060101)

Abstract

A disposable applicator tray, for topical application of fluoride gel and other dental medications, in the form of an arcuate mouthpiece having a U-shaped cross-section and comprised of flexible polymeric foam material. The interior channeled recess of the tray is anatomically contoured to fit respectively over either of the upper and lower teeth with the walls of the tray contacting the adjacent periodontal tissue. The flexibility of the tray provides a relatively snug seal between the tray perimeter and the periodontal tissue so as to prevent excessive loss of fluoride or other medication contained in the tray and the contamination and dilution thereof with saliva. The applicator tray, which can also serve as a protective mouthpiece for use during athletic activities, is vacuum formed in quantity from a sheet of inexpensive polymeric foam material, thereby permitting it to be economically disposed of after a single use. The bottom surface of the interior recess of the applicator tray, against which the biting edges of the teeth bear when the tray is inserted in the mouth, is provided with indentations anatomically configured to mate with the mouth's dentition pattern and the walls of the tray are similarly anatomically configured so as to provide a comfortable, natural fit and a more thorough and extensive contact of the dental medication with the teeth surfaces.

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