Dentistry – Apparatus – Having absorption means or means to isolate tooth or mouth...
Patent
1987-12-16
1991-01-22
Wilson, John J.
Dentistry
Apparatus
Having absorption means or means to isolate tooth or mouth...
433139, A61C 512
Patent
active
049867520
ABSTRACT:
A cushion for a dental rubber dam clamp has a body of an elastomeric material with a tooth engaging front face, a rear face and first and second ends. An elongated, slot-like recess communicates with the rear face and extends towards the front face from near the first end to near the second end. A method of securing a dental rubber dam clamp includes placing the cushion over at least one inside edge of the clamp and securing the clamp on a tooth so a portion of the cushion is compressed between the inside edge of the clamp and the tooth.
REFERENCES:
patent: 371669 (1887-10-01), Carpenter
patent: 562490 (1896-06-01), Richter
patent: 722033 (1903-03-01), McCarter
patent: 765537 (1904-07-01), Abbott
patent: 1010146 (1911-11-01), Ivory
patent: 1143515 (1915-06-01), Dunlop
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