Dentistry – Method or material for testing – treating – restoring – or...
Patent
1998-05-06
2000-07-04
Wilson, John J.
Dentistry
Method or material for testing, treating, restoring, or...
4332281, 264 16, A61C 500
Patent
active
060830050
ABSTRACT:
A method of using latex as a protective separator and release agent between a resin on-lay, in-lay, laminate, or other restorations, and a dental model or tooth to be restored includes the steps of applying the latex to a surface of the dental model preparation by substantially covering the surface area that is to contact and form the restoration, to prevent direct contact of thereto and with the dental model or tooth, while facilitating a mutual release of the elements after curing has occurred. The latex is in the form of an emulsion of about forty to about seventy percent of solids, the solids including a protein material within a water base in which such latex is primarily isoprene butyryl and about 0.04% to about 0.5% percent ammonium hydroxide, to a restoration-forming surface of a dental model of tooth preparation covering that area which is in contact with the resin or other material on-lay or in-lay designed for such fabrication. The method also includes the step of allowing the applied latex to dry to a state of substantial elasticity which state is defined by a change of color of the material within the solids of the suspension of the latex. The method further includes the step of placing a material forming the on-lay or in-lay onto the recess covered with the latex, this preventing direct contact between the restoration and the dental model or tooth structure, while facilitating the mutual respective releases of the restoration and dental model, after curing has occurred.
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patent: 4854875 (1989-08-01), Dziki et al.
patent: 5000687 (1991-03-01), Yarovesky et al.
patent: 5607689 (1997-03-01), Checchi
Silverman M. K.
Wilson John J.
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