Dentistry – Apparatus – Having absorption means or means to isolate tooth or mouth...
Reexamination Certificate
2006-10-17
2006-10-17
Wilson, John J (Department: 3732)
Dentistry
Apparatus
Having absorption means or means to isolate tooth or mouth...
C433S215000
Reexamination Certificate
active
07121828
ABSTRACT:
A gingival retraction cord is constructed from two or more strands that are formed into a plurality of interlocking loops so as to form a knitted retraction cord. At least one strand is made from an absorbent material and another strand is made from a degradation-resistant material such as nylon or polyester. The absorbent strands are impregnated with a hemostatic agent. The degradation-resistant strands resist degradation by the hemostatic agent. Because the strands are part of the knit, the retraction cord is compressible and resilient in the longitudinal and transverse dimensions. Alternatively, one or more strands are used to make the knit and each strand is made from two or more different fibers. For example, one or more absorbent fibers and one or more synthetic fibers can be twisted to make a blended strand. The blended strands can then be used to knit a retraction cord.
REFERENCES:
patent: 4321038 (1982-03-01), Porteous
patent: 4465462 (1984-08-01), Ticknor
patent: 4522593 (1985-06-01), Fischer
patent: 4617950 (1986-10-01), Porteous et al.
patent: 4871311 (1989-10-01), Hagne
patent: 4892482 (1990-01-01), Lococo
patent: 5022859 (1991-06-01), Oliva
patent: 5540588 (1996-07-01), Earle
patent: 5676543 (1997-10-01), Dragan
patent: 5899694 (1999-05-01), Summer
patent: 6375461 (2002-04-01), Jensen et al.
patent: 6612839 (2003-09-01), Loynes
patent: 1139057 (1989-05-01), None
Fazekas, A., “Effects of Pre-Soaked Retraction Cords on the Microcirculation of the Human Gingival Margin” Oper Dent 27(4): 343-8 2002.
Nieto-Martinez, D., “Effects of Diameter, Chemical Impregnation and Hydration on the Tensile Strength of Gingival Retraction Cords” J. Oral Rehibil, 28(12): 1094-100 2002.
O'Mahony, A., “Effect of 3 Medicaments on the Dimensional Accuracy and Surface Detail Reproduction of Polyvinyl Siloxane Impressions” Quintessence Int., 31(3): 201-6 2001.
Donovan, T.E., “Review and Survey of Medicaments Used With Gingival Retraction Cords” J. Prosthet Dent, 53(4): 525-31 1985.
Black Ammon
Fischer Dan E.
Ultradent Products Inc.
Wilson John J
Workman Nydegger
LandOfFree
Reinforced gingival retraction cord does not yet have a rating. At this time, there are no reviews or comments for this patent.
If you have personal experience with Reinforced gingival retraction cord, we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and Reinforced gingival retraction cord will most certainly appreciate the feedback.
Profile ID: LFUS-PAI-O-3708360