Method for desensitizing teeth

Patent 5211939 Issued on May 18, 1993. Estimated Expiration Date:

January 14, 2012. 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.

Abstract Claims Description Full Text

Patent References

RE21197

2304478

2994642

3122483

3226297

3357950

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Inventors

Application

No. 820348 filed on 01/14/1992

US Classes:

424/49, DENTIFRICES (INCLUDES MOUTH WASH)106/35, Dental424/497, Containing solid synthetic polymers433/215METHOD OR MATERIAL FOR TESTING, TREATING, RESTORING, OR REMOVING NATURAL TEETH

Examiners

Primary: Rose, Shep K.

Attorney, Agent or Firm

Fish & richardson

International Classes

A61K 007/16
A61K 009/14
A61K 009/50

Abstract

A method for desensitizing teeth includes applying an effective amount of charged polymeric particles to the surface of the tooth.

Other References

Transmission Electron Microscopic Characterization of Hypersensitive Human Radicular Dentin-Yoshiyama et al. (1990)
Controlled Trial of the Action of a Toothpaste Containing Nicomethanol Hydrofluoride in the Treatment of Dentine Hypersensitivity-Lecointre et al. (1986)
Intradental Sensory Units: Physiological and Clinical Aspects-Trowbridge (1985)
Berman, Peridontol., 56:216 (1985)
Brannstrom and Astram, J. Dental Res., 43:619 (1963)
Gunji, Arch. Histo. J., 45:45-67 (1982)
Lecointre et al., J. Int. Med. Res., 14:217-222 (1986)
Narhi et al., Acta. Physiol. Scand., 115:173-178 (1982)
Pashley et al., Endodont. Dent. Traumatol, 3:80-82 (1987)
Pleasants et al., Oral Surg. Oral Med Oral Pathol. 28:163: 165 (1969)
Trowbridge, J. of Endodontics, 11:489: 497 (1985)
Yoshiyama et al., J. Dent. Res., 69 (6):1293: 1297 (1990