Dental fillers including a phosphorus containing surface treatment, and compositions and methods thereof
Assignee3M Innovative Properties Company
InventorsRichard P. Rusin, Sumita B. Mitra, Kevin M. Cummings
Life of this patent
Estimating the term…
Abstract
The present application provides dental fillers, and methods of making and using dental fillers that include a treated surface that includes phosphorus and a divalent cation. Dental compositions including such dental fillers can be useful for delivering ions to the oral environment.
Claims13
A dental filler comprising a treated surface, wherein the treated surface is amorphous and comprises phosphorus and a divalent cation selected from the group consisting of Mg, Ca, Sr, Ba, Zn, and combinations thereof and further comprises a silane, the dental filler obtained by a method comprising the steps of:
- dissolving, dispersing, or suspending a phosphorus precursor and a precursor for the divalent cation in one or more liquids;
- combining the one or more liquids with the dental filler;
- removing at least a portion of the one or more liquids to provide the treated surface;
- and heating the dental filler, and
- wherein the dental filler comprises nanoparticles, agglomerates of nanoparticles, or combinations thereof.
A dental filler comprising a treated surface, wherein the treated surface is amorphous and comprises phosphorus and a divalent cation selected from the group consisting of Mg, Ca, Sr, Ba, Zn, and combinations thereof and further comprises a silane, the dental filler obtained by a method comprising the steps of:
- dissolving, dispersing, or suspending a phosphorus precursor and a precursor for the divalent cation in one or more liquids;
- combining the one or more liquids with the dental filler;
- removing at least a portion of the one or more liquids to provide the treated surface;
- and heating the dental filler, and
- wherein the treated surface further comprises a source of fluoride ions, a source of aluminum ions, or an antibacterial agent.
A dental composition comprising a dental filler and a hardenable resin, the dental filler comprising a treated surface, wherein the treated surface is amorphous and comprises phosphorus and a divalent cation selected from the group consisting of Mg, Ca, Sr, Ba, Zn, and combinations thereof and further comprises a silane,
- the dental filler obtained by a method comprising the steps of:
- dissolving, dispersing, or suspending a phosphorus precursor and a precursor for the divalent cation in one or more liquids;
- combining the one or more liquids with the dental filler;
- removing at least a portion of the one or more liquids to provide the treated surface;
- and heating the dental filler,
- wherein the hardenable resin comprises acid functionality.
A dental composition comprising a dental filler and water, the dental filler comprising a treated surface, wherein the treated surface is amorphous and comprises phosphorus and a divalent cation selected from the group consisting of Mg, Ca, Sr, Ba, Zn, and combinations thereof and further comprises a silane, the dental filler obtained by a method comprising the steps of:
- dissolving, dispersing, or suspending a phosphorus precursor and a precursor for the divalent cation in one or more liquids;
- combining the one or more liquids with the dental filler;
- removing at least a portion of the one or more liquids to provide the treated surface;
- and
- heating the dental filler.
A method of preparing a dental article comprising:
- (a) combining:
- a dental filler and a hardenable resin to form a dental composition, wherein the dental filler comprises a treated surface, wherein the treated surface is amorphous and comprises phosphorus and a divalent cation selected from the group consisting of Mg, Ca, Sr, Ba, Zn, and combinations thereof and further comprises a silane, the dental filler obtained by a method comprising the steps of:
- dissolving, dispersing, or suspending a phosphorus precursor and a precursor for the divalent cation in one or more liquids;
- combining the one or more liquids with the dental filler;
- removing at least a portion of the one or more liquids to provide the treated surface;
- and
- heating the dental filler, and
- wherein the dental filler is porous;
- and
- (b) hardening the dental composition to fabricate a dental article selected from the group consisting of crowns, fillings, mill blanks, orthodontic devices, and prostheses.
A dental filler comprising a treated surface, wherein the treated surface is amorphous and comprises phosphorus and a divalent cation selected from the group consisting of Mg, Ca, Sr, Ba, Zn, and combinations thereof and further comprises a silane, the dental filler obtained by a method comprising the steps of:
- dissolving, dispersing, or suspending a phosphorus precursor and a precursor for the divalent cation in one or more liquids;
- combining the one or more liquids with the dental filler;
- removing at least a portion of the one or more liquids to provide the treated surface;
- and heating the dental filler, and
- wherein the dental filler is an oxide, a fluoride, or an oxyfluoride of an element selected from the group consisting of Groups 2-5 elements, Groups 12-15 elements, Lanthanide elements, and combinations thereof.
The dental filler comprising a treated surface, wherein the treated surface is amorphous and comprises phosphorus and a divalent cation selected from the group consisting of Mg, Ca, Sr, Ba, Zn, and combinations thereof and further comprises a silane, the dental filler obtained by a method comprising the steps of:
- dissolving, dispersing, or suspending a phosphorus precursor and a precursor for the divalent cation in one or more liquids;
- combining the one or more liquids with the dental filler;
- removing at least a portion of the one or more liquids to provide the treated surface;
- and
- heating the dental filler, and
- wherein the dental filler is porous and wherein the dental filler comprises a source of fluoride ions.
Dependencies are inferred from the claim text.