Dentistry – Apparatus – Having absorption means or means to isolate tooth or mouth...
Patent
1997-07-11
2000-02-15
Lewis, Ralph A.
Dentistry
Apparatus
Having absorption means or means to isolate tooth or mouth...
433 88, 433116, 128857, 383102, A61C 514
Patent
active
060245662
ABSTRACT:
A device for containing abrasive particles expelled from air-abrasive apparatus and permitting their facile removal without the aid of a vacuum source, while facilitating a relatively unobstructed view of the working area during use. One embodiment disclosed is a device for containing abrasive material expelled by a gas abrasive dental apparatus. The device comprises a flexible puncturable, substantially flat distal sheet comprising one side of the device for isolating a tooth surface to be abraded; a transparent, puncturable, substantially flat proximal sheet comprising the other side of the device; an enclosure for containing the abrasive material. The enclosure is formed by the junction of the proximal sheet and the distal sheet; an enclosure sealing means for permitting access to the enclosure and sealing the enclosure, a filtering means integrated with at least one sheet for permitting the passage of a gas while entrapping the abrasive material, and a rubber dam integrated with the distal sheet, which rubber dam can be secured from within the enclosure around the tooth surface to be abraded by a clamping member. Certain other embodiments of the device can be used for non-dental applications.
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Bembenek John J.
Bruns Craig R.
Danville Materials
Lewis Ralph A.
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