HARDENABLE SELF-SUPPORTING STRUCTURES AND METHODS

• US 20090032989A1
• Filed: 10/13/2008
• Published: 02/05/2009
• Est. Priority Date: 08/15/2001
• Status: Active Grant

• Current Assignee: 3M Innovative Properties Company (3M Company)
• Original Assignee: 3M Innovative Properties Company (3M Company)
• Inventors: Nelson, James M., Salviejo-Rivas, Marcelino, Gaddam, Babu N., Mitra, Sumita B., Karim, Naimul, Abuelyaman, Ahmed S., Lewandowski, Kevin M., Jones, Todd D., Fansler, Duane D.
• Granted Patent: US 7,816,423 B2
• Time in Patent Office: Days
• US Class Current: 264/19
• CPC Class Codes: A61K 6/71 Fillers
• CPC Class Codes: A61K 6/887 Compounds obtained by reactions only involving carbon-to-carbon unsaturated bonds
• CPC Class Codes: A61K 6/891 Compounds obtained otherwise than by reactions only involving carbon-to-carbon unsaturated bonds
• CPC Class Codes: A61K 6/90 Compositions for taking dental impressions
• CPC Class Codes: C08L 23/00 Compositions of homopolymers or copolymers of unsaturated aliphatic hydrocarbons having only one carbon-to-carbon double bond; Compositions of derivatives of such polymers
• CPC Class Codes: C08L 33/00 Compositions of homopolymers or copolymers of compounds having one or more unsaturated aliphatic radicals, each having only one carbon-to-carbon double bond, and only one being terminated by only one carboxyl radical, or of salts, anhydrides, esters, amides, imides or nitriles thereof; Compositions of derivatives of such polymers
• CPC Class Codes: C08L 63/06 Triglycidylisocyanurates

Abstract

Compositions, particularly for forming dental products, having a hardenable self-supporting structure with sufficient malleability to be subsequently customized into a second shape and then hardened, and methods.

Claims

1-64. -64. (canceled)

65. A method of preparing a composition comprising:

combining a resin system comprising a crystalline component, greater than 60 wt-% of a filler system, and an initiator system to form a mixture;

with the proviso that if the filler system comprises fibers, the fibers are present in an amount of less than 20 wt-%, based on the total weight of the composition; and

forming the mixture into a hardenable self-supporting structure having a first shape;

wherein the hardenable self-supporting structure having a first shape has sufficient malleability to be formed into a second shape at a temperature of about 15°

C. to 38°

C.

66. The method of claim 65 wherein the first shape is the shape of a semi-finished dental product.

67. A method of preparing a composition comprising:

combining a resin system comprising a crystalline component, greater than 70 wt-% of a filler system, aid an initiator system to form a mixture;

with the proviso that if the filler system comprises fibers, the fibers are present in an amount of less than 20 wt-%, based on the total weight of the composition; and

forming the mixture into a hardenable self-supporting structure having a first shape;

wherein the hardenable self-supporting structure having a first shape has sufficient malleability to be formed into a second shape.

68. The method of claim 67, wherein the first shape is the shape of ti semi-finished dental product.

69. A method of preparing a composition comprising:

combining a resin system, a filler system at least a portion of which is an inorganic material comprising nanoscopic particles having an average primary particle size of no greater than about 50 nm, and an initiator system to form a mixture;

forming the mixture into a hardenable self-supporting structure having a first shape;

wherein the hardenable self-supporting structure having a first shape has sufficient malleability to be formed into a second shape.

70. The method of claim 69 wherein the first shape is the shape of a semi-finished dental product.

71. A method of preparing a dental product, the method comprising:

providing a composition comprising a resin system, a filler system, and an initiator system, wherein the composition is in the form of a hardenable, self-supporting, malleable structure having a first semi-finished shape;

forming the self-supporting, malleable structure into a second shape at a temperature of about 15°

C. to 38°

C.; and

hardening the self-supporting structure having the second shape to form a dental product.

72. The method of claim 71 wherein the semi-finished shape is that of a preformed crown, a preformed inlay, a preformed onlay, a preformed bridge, a preformed veneer, a preformed maxillofacial prosthesis, a preformed orthodontic appliance, a preformed tooth facsimile, or a preformed tooth splint.

73. A method of preparing a dental product, the method comprising:

providing, a composition comprising a resin system, a filler system, and an initiator system, wherein the composition is in the form of a hardenable self-supporting, malleable structure having a first semi-finished shape;

forming the self-supporting, malleable structure into a second shape; and

hardening the self-supporting structure having the second shape to form a dental product.

74. The method of claim 73 wherein forming the self-supporting, malleable structure into a second shape occurs a temperature of about 15°

C. to 38°

C.

79. The method of claim 73 wherein the semi-finished shape is that of a preformed crown, a preformed inlay, a preformed onlay, a preformed bridge, a preformed veneer, a preformed maxillofacial prosthesis, a preformed orthodontic appliance, a preformed tooth facsimile, or a preformed tooth splint.

80. The method of claim 79 wherein the semi-finished shape is that of a preformed crown or a preformed bridge.

75. A method of preparing a dental tray, the method comprising:

providing a composition comprising a resin system, a filler system, and an initiator systems wherein the composition is in the form of a hardenable, self-supporting, malleable structure having a first semi-finished shape of a preformed dental tray;

forming the self-supporting, malleable structure into a second shape custom fit to the patient; and

hardening the self-supporting structure having the second shape to form a dental tray.

76-78. -78. (canceled)

81. A method of using a dental product, the method comprising:

providing a dental product comprising a hardenable self-supporting structure comprising a composition that includes a resin system, a filler system, and all initiator system, wherein the composition is in the form of a hardenable, self-supporting, malleable structure having a first semi-finished shape;

forming the self-supporting, malleable structure having a first semi-finished shape into a second shape custom fit to a patient; and

hardening the self-supporting structure having the second shape to form a dental product.

82. A method of using a dental product, the method comprising:

providing a dental product comprising a hardenable self-supporting structure comprising a composition that includes a resin system, a filler system, and an initiator system, wherein the composition is in the form of a hardenable, self-supporting, malleable structure having a first semi-finished shape;

placing the dental product on a tooth surface in the mouth of a subject;

customizing the shape of the dental product in the mouth of a subject; and

hardening the hardenable dental composition of the dental product.

83. The method of claim 82 wherein the semi-finished shape is that of a preformed crown, a preformed inlay, a preformed onlay, a preformed bridge, a preformed veneer, a preformed maxillofacial prosthesis, a preformed orthodontic appliance, a preformed tooth facsimile, or a preformed tooth splint.

84. The method of claim 83 wherein the first semi-finished shape is in the form of a dental crown.

85. The method of claim 82 wherein the resin system comprises a crystalline resin component.

86. The method of claim 82 wherein the filler system is present in an amount of greater than 60 wt-%, with the proviso that if the filler system comprises fibers, the fibers are present in an amount of less than 20 wt-%, based on the total weight of the composition.

87. The method of claim 82 wherein the self-supporting structure is sufficiently malleable to be formed into a second shape a temperature of about 15°

C. to 38°

C.

88. The method of claim 82 wherein the filler system comprises at least a portion of which is an inorganic material comprising nanoscopic particles having an average primary particle size of no greater than about 50 nm.

89. The method of claim 82 wherein the composition further comprises a surfactant system.

90. A method of using a dental product, the method comprising:

providing a dental product comprising a hardenable self-supporting structure comprising a composition that includes a resin system, a filler system, and an initiator system, wherein the composition is in the form of a hardenable, self supporting, malleable structure having a first semi-finished shape which is packable;

placing the dental product on a tooth surface in the mouth of a subject;

customizing the shape of the dental product in the mouth of a subject; and

hardening the dental composition.

91. The method of claim 90 wherein the resin system comprises a crystalline resin component.

92. The method of claim 90 wherein the filler system is present in an amount of greater than 60 wt-%, with the proviso that if the filler system comprises fibers, the fibers are present in an amount of less than 20 wt-%, based on the total weight of the composition.

93. The method of claim 90 wherein the self-supporting structure is sufficiently malleable to be formed into a second shape a temperature of about 15°

C. to 38°

C.

94. The method of claim 90 wherein the filler system comprises at least a portion of which is an inorganic material comprising nanoscopic particles having an average primary particle size of no greater than about 50 nm.

95. The method of claim 90 wherein the composition further comprises a surfactant system.