The invention features a dental composition containing a fluorescent organic pigment, e.g. a hydroxyl substituted aryl guanamine an or a fluorescent compound encapsulated in a thermo plastic or thermo set polymer, in an amount that provides the composition with fluorescence resembling that of natura
The invention features a dental composition containing a fluorescent organic pigment, e.g. a hydroxyl substituted aryl guanamine an or a fluorescent compound encapsulated in a thermo plastic or thermo set polymer, in an amount that provides the composition with fluorescence resembling that of natural teeth.
대표청구항▼
1. A hardenable dental composition comprising a fluorescent benzoxazole organic pigment and a fluorescent hydroxyl substituted aryl guanamine organic pigment. 2. The composition of claim 1, wherein the composition upon hardening has natural tooth fluorescence. 3. The composition of claim 1, wherein
1. A hardenable dental composition comprising a fluorescent benzoxazole organic pigment and a fluorescent hydroxyl substituted aryl guanamine organic pigment. 2. The composition of claim 1, wherein the composition upon hardening has natural tooth fluorescence. 3. The composition of claim 1, wherein at least one of the fluorescent benzoxazole organic pigment and the fluorescent hydroxyl substituted aryl guanamine organic pigment comprises a fluorescent compound encapsulated within or attached to a polymer. 4. The composition of claim 3, wherein at least one of the fluorescent benzoxazole organic pigment and the fluorescent hydroxyl substituted aryl guanamine organic pigment comprises an intrinsically fluorescent organic compound. 5. The composition of claim 1, wherein at least one of the fluorescent benzoxazole organic pigment and the fluorescent hydroxyl substituted aryl guanamine organic pigment is present in an amount less than 1 wt-% of the composition. 6. The composition of claim 1, further comprising a polymerizable component. 7. The composition of claim 6, wherein the polymerizable component comprises an ethylenically unsaturated compound. 8. The composition of claim 7, wherein ethylenically unsaturated compound is a (meth)acrylate. 9. The composition of claim 1, further comprising an initiator system. 10. The composition of claim 9, wherein the composition is photo-curable and the initiator system comprises a photoinitiator. 11. The composition of claim 1, further comprising a filler system. 12. The composition of claim 11, wherein the filler system comprises silica nanoparticles, zirconia nanoparticles, nanoclusters of silica and zirconia nanoparticles, or a combination thereof. 13. The composition of claim 12, wherein the nanoparticles or nanoclusters have been silane treated. 14. A method of making of dental composition having natural tooth fluorescence, the method comprising the steps of: (a) providing a dental resin system that, upon curing, provides a material that has a non-natural tooth fluorescence; and(b) adding a sufficient amount of a fluorescent benzoxazole organic pigment and a fluorescent hydroxyl substituted aryl guanamine organic pigment to the resin system to provide a composition that, upon curing, has a natural tooth fluorescence. 15. The method of claim 14, further comprising the step of: (c) comparing the fluorescence of the composition to the fluorescence of a natural tooth. 16. The method of claim 14, wherein the resin system comprises an ethylenically unsaturated component. 17. The method of claim 16, wherein ethylenically unsaturated component is a (meth)acrylate. 18. The method of claim 14, wherein the composition further comprises an initiator system. 19. The method of claim 18, wherein the composition is photo-curable and the initiator system comprises a photoinitiator. 20. The method of claim 14, wherein the composition further comprises a filler system. 21. The method of claim 20, wherein the filler system comprises silica nanoparticles, zirconia nanoparticles, nanoclusters comprising silica and zirconia nanoparticles, or a combination thereof. 22. The method of claim 21, wherein the nanoparticles have been silane treated. 23. A dental product made by hardening the composition of claim 1. 24. The dental product of claim 23 wherein the dental product is a mill blank.
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