Dentistry – Apparatus – Having intra-oral dispensing means
Patent
1998-10-13
2000-07-04
Mancene, Gene
Dentistry
Apparatus
Having intra-oral dispensing means
51307, A61C 302
Patent
active
060830018
ABSTRACT:
The invention enables accurate control of particle flow with regard to feeding abrasive material to a surface. The unit does not employ a vibrator and may be used to remove undesired material from a surface. A particular application is in a dental air abrasion unit for both cleaning and cutting tooth surfaces. When used in an air abrasion dental instrument, the abrasive material is stored in a container which is separated from a mixing chamber by an orifice member. The flow of particles is electronically controlled by the differential in pressure in the container section above the particle level and the pressure below an orifice member in a mixing chamber. The resulting particle flow to the surface is substantially linear and less erratic than that of prior air abrasion instruments.
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Davis Geoffery L.
Deardon Joe D.
Dollard Gregory S.
French Albert L.
Kutsch V. Kim
Friedman Lori M.
Kreativ, Inc.
Mancene Gene
Philogene Pedro
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