IP Library Granted Patent US 7,815,434
Granted Patent B2
US 7,815,434 · App. 10/530,558 · Granted Oct 19, 2010

Dental coating kit

Assignee: Kuraray Medical Inc.
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Quick Facts
Patent No.
US 7,815,434
App. No.
10/530,558
Granted
Oct 19, 2010
Kind
B2
Abstract

The invention provides a dental coating kit with high adhesiveness to teeth that contains a primer composition including an acidic group-containing polymeric monomer (a), water (b) and a water-soluble solvent (c) and a surface smoothing composition including a polyfunctional polymeric monomer (f), a volatile solvent (g) and a photopolymerization initiator (h); and a dental coating kit with high adhesiveness to teeth and minimally suffering from chipping and peeling off that contains a primer composition including an acidic group-containing polymeric monomer (a), water (b) and a water-soluble solvent (c), a coating composition including a polymeric monomer (d) and a photopolymerization initiator (e), and a surface smoothing composition including a polyfunctional polymeric monomer (f), a volatile solvent (g) and a photopolymerization initiator (h). Either dental coating kit is particularly useful as a kit for preventing stain and color return of a bleached tooth.

Claims (22)

1. A dental coating kit comprising:

a primer composition including at least one acidic group-containing monomer (a), water (b) and at least one water-soluble solvent (c) comprising a hydrophilic monomer in an amount of at least 10 wt % based on the total weight of the primer composition;

a coating composition having viscosity at 30° C. of 300 cP through 50,000 cP and including at least one monomer (d) and at least one photopolymerization initiator (e); and

a surface smoothing composition including at least one polyfunctional monomer (f), at least one volatile solvent (g) and at least one photopolymerization initiator (h).

2. The dental coating kit according to claim 1 ,

wherein the primer composition includes the acidic group-containing monomer (a) in an amount of 1 wt % through 90 wt %, the water (b) in an amount of 0.1 wt % through 90 wt % and the water-soluble solvent (c) in an amount of 10 wt % through 98 wt %,

the coating composition includes the monomer (d) in an amount of 40 wt % through 99.99 wt % and the photopolymerization initiator (e) in an amount of 0.01 wt % through 10 wt % based on the monomer (d), and

the surface smoothing composition includes the polyfunctional monomer (f) in an amount of 40 wt % through 98 wt %, the volatile solvent (g) in an amount of 1 wt % through 59 wt % and the photopolymerization initiator (h) in an amount of 0.01 wt % through 10 wt % based on a total weight of polymeric monomer(s) included in the surface smoothing composition.

3. The dental coating kit according to claim 1 or 2 ,

wherein the coating composition further includes an inorganic filler with a refractive index of 1.9 or more and colloidal silica.

4. The dental coating kit according to claim 1 ,

wherein the monomer (d) includes a hydrophobic monomer and a hydrophilic monomer, and

the coating composition includes the hydrophilic monomer in an amount of 5 wt % through 50 wt %.

5. The dental coating kit according to claim 4 , wherein the hydrophilic monomer is 2-hydroxyethyl methacrylate.

6. A dental coating method comprising

applying, on a tooth, a primer composition including at least one acidic group-containing monomer (a), water (b), at least one water-soluble solvent (c) comprising a hydrophilic monomer in an amount of at least 10 wt % based on the total weight of the primer composition, and, optionally, at least one polymerization initiator;

forming a primer layer by drying or polymerically curing the primer composition;

applying, on the primer layer, a coating composition having viscosity at 30° C. of 300cP through 50,000 cP and including at least one monomer (d) and at least one photopolymerization initiator (e);

forming an intermediate layer by polymerically curing the coating composition through light irradiation;

applying, on the intermediate layer, a surface smoothing composition including at least one polyfunctional monomer (f), at least one volatile solvent (g) and at least one photopolymerization initiator (h); and

forming a surface layer by polymerically curing the surface smoothing composition through light irradiation.

7. The dental coating method according to claim 6 , wherein the tooth is a bleached tooth.

Assignments (2)
CHANGE OF NAME Recorded Jul 26, 2012
From: KURARAY MEDICAL INC.
To: KURARAY NORITAKE DENTAL INC.
Reel/Frame 028644/0331 →
ASSIGNMENT OF ASSIGNOR'S INTEREST Recorded Jul 29, 2005
From: TAKEI, MITSURU; OHTSUKI, JUNICHI
To: KURARAY MEDICAL INC.
Reel/Frame 016829/0323 →
Priority Claims (2)
JP 2002-294821 · Oct 8, 2002 · national
JP 2002-366253 · Dec 18, 2002 · national
Continuity (1)
Related Publication 20060078510A1 · Apr 13, 2006