摘要:
The present invention provides a dental paste, a dental article, methods of making and using the dental paste, and compositions prepared therefrom. In one embodiment, the dental paste includes (a) a filler including porous, non-pyrogenic silica having a silane treated surface and being substantially free of heavy metals and (b) a filler including non-aggregated primary silica particles, with the fillers being dispersed in a hardenable resin.
摘要:
The present invention provides a dental paste, a dental article, methods of making and using the dental paste, and compositions prepared therefrom. In one embodiment, the dental paste includes (a) a filler including porous, non-pyrogenic silica having a silane treated surface and being substantially free of heavy metals and (b) a filler including non-aggregated primary silica particles, with the fillers being dispersed in a hardenable resin.
摘要:
Imaging systems comprising a tetra(hydrocarbyl)borate and a bleachable dye may be rendered desensitizable by the inclusion of a second bleachable dye which absorbs radiation in a different portion of the electromagnetic spectrum than the first bleachable dye.
摘要:
Light sensitive systems comprising a tetra(hydrocarbyl)borate and a dye may be used in the form of a dispersion, with the light sensitive borate and dye in one phase which is dispersed within a second phase.
摘要:
The invention provides for a material comprising(a) a hardenable resin; and (b) a filler comprising (i) clusters of nano-sized particles, the clusters comprising non-beavy metal oxide particles and heavy metal oxides, and being not fully densified particles and (ii) non-agglomerated nano-sized particles selected from the group consisting of non-heavy metal oxide particles, heavy metal oxide particles, and combinations thereof. The material is suitable for use as dental materials.
摘要:
A method for forming an image includes the step of desensitizing a radiation sensitive imaging system comprising a dye and a tetra (hydrocarbyl) borate in a binder by converting the tetra (hydrocarbyl) borate to a compound having fewer than four carbon-to-boron bonds.
摘要:
The invention features a hardenable dental composition, e.g., polymerizable dental restoratives, adhesives, etc., that contain a color-stable amine electron donor in an initiation system for initiating polymerization of the composition.
摘要:
The invention features a hardenable dental composition, e.g., polymerizable dental restoratives, adhesives, etc., that contain a color-stable amine electron donor in an initiation system for initiating polymerization of the composition.
摘要:
The present invention relates to polymerizable dental compositions that contain a water scavenger, such as a molecular sieve, to increase the shelf life of the composition.
摘要:
Dental resin cement materials having unique handling properties are provided that comprise a) filler, b) polymerizable resin, and c) a polymeric handling modifier that is dispersed in the polymerizable resin at 25° C. and that has a molecular weight of between about 500 and 100,000. Components a) b) and c) are present in an amount effective to achieve a Viscosity vs Shear Rate Curve that fits a power law model of F(x)=AxB. The correlation value of the material to this curve is greater than 0.85 for both the increasing and decreasing shear rate curves, and the value of B is less than about −0.01.Resin cements are also provided that comprise acid functionality and water, but which do not comprise an acid reactive filler. Such cements may be self etching, thereby avoiding the need to carry out a separate acid etch step.