Semiconductor device manufacturing: process – Making field effect device having pair of active regions... – Having insulated gate
Patent
1985-12-20
1988-10-25
Wilson, John J.
Semiconductor device manufacturing: process
Making field effect device having pair of active regions...
Having insulated gate
433142, 424 49, A61K 500
Patent
active
047800836
ABSTRACT:
This invention relates to dentistry, and more particularly to cosmetic dentistry, where for aesthetic objectives it is desirable to remove a small amount of the patient's tooth enamel to modify tooth color. A procedure is described using an applicator and compound which provides accelerated treatment time in stripping away a sufficient amount of the outer layer of the tooth enamel to provide the necessary tooth color modification. The applicator has two functional ends. One end has a containment pocket for holding the compound, and a second end for high pressure scouring of the tooth enamel. The compound comprises an enamel softening acid, such as hydrochloric acid, in the concentration range of between 6%-16% in combination with an abrasive particulate material. The abrasive material should have a hardness greater than 6.0 as measured on the Mohs hardness scale for greatest effectiveness.
REFERENCES:
patent: 364916 (1887-06-01), Goldsmith
patent: 431713 (1890-07-01), Whaley
patent: 1632686 (1927-06-01), Withycombe
patent: 2623003 (1952-12-01), Friedlob et al.
patent: 3718973 (1973-03-01), Slater et al.
patent: 3803301 (1974-04-01), Cordon et al.
patent: 3995024 (1976-11-01), Hawking
patent: 4100269 (1978-07-01), Pader
patent: 4108981 (1978-08-01), Muhler et al.
patent: 4170635 (1979-10-01), Barth
patent: 4411623 (1983-10-01), Axelsson
Bailey, Ronald W. and Arden G. Christen, "Bleaching of Vital Teeth Stained with Endemic Dental Fluorosis", U.S., O.M. and O.P., pp. 871-878, 12/1968.
McCloskey, Robert J., "A Technique for Removal of Fluorosis Stains", JADA, vol. 109, pp. 63-64, 7/1984.
Chandra, Satish and T. N. Chawla, "Clinical Evaluation Of The Sandpaper Disk Method For Removing Stains From Teeth", JADA, vol. 90, pp. 1273-1276, 6/1975.
Colon, P. G., "Removing Fluorosis Stains From Teeth", Quintessence International, vol. 6, pp. 1-5, 6/1971.
Gore Gregory J.
Lepiane Adriene J.
Wilson John J.
LandOfFree
Compound and dental applicator for enamel removal does not yet have a rating. At this time, there are no reviews or comments for this patent.
If you have personal experience with Compound and dental applicator for enamel removal, we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and Compound and dental applicator for enamel removal will most certainly appreciate the feedback.
Profile ID: LFUS-PAI-O-2267126