Plaque-inhibiting composites

• US 6,034,152 A
• Filed: 03/27/1998
• Issued: 03/07/2000
• Est. Priority Date: 03/27/1997
• Status: Expired due to Term

• Current Assignee: 3M Deutschland GmbH (3M Company)
• Original Assignee: Gesellschaft Fur Industrielle Schutzrechte, Thera Patent GmbH & Co. KG
• Inventors: Guggenberger, Rainer, Gangnus, Bernd, Burger, Bernd
• Primary Examiner(s): Harrison, Robert H.
• Application Number:
  US09/049,079
• Time in Patent Office: 711 Days
• Field of Search: 523/116, 523/118, 523/114, 424/484, 433/228.1
• US Class Current: 523/116
• CPC Class Codes: A61K 6/20 Protective coatings for natural or artificial teeth, e.g. sealings, dye coatings or varnish
• CPC Class Codes: A61K 6/889 Polycarboxylate cements; Glass ionomer cements
• 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

Abstract

Dental composites are provided on the basis of customary polymerizable monomers, initiators, fillers and other auxiliaries, which additionally contain the plaque-inhibiting addition of salts of acid-functional polymers having mono- or polyvalent cations.

Claims

1. A dental composite composition, comprising:

(a) one or more ethylenically unsaturated, polymerizable monomers on the basis of mono-, di- or polyfunctional (meth)acrylates;

(b) an initiator;

(c) a filler; and

(d) one or more salts of acid-functional polymers having mono- or polyvalent cations.

2. The dental composite composition according to claim 1, wherein component (d) is a sodium, calcium, aluminum, zinc, yttrium or lanthanum salt of a polymeric carboxylic acid, selected from the group consisting of polymaleic acid, polyacrylic acid, polyitaconic acid, maleic acid/acrylic acid copolymers, acrylic acid/itaconic acid copolymers, a polymeric phosphonic acid, and mixtures thereof.

3. The dental composite composition according to claim 1, wherein component (d) is a cured glass ionomer cement based on calcium or strontium aluminum fluorosilicate glasses.

4. The dental composite composition according to claim 1, wherein component (d) has been ground to a small grain size of below 20 μ

m.

5. The dental composite composition according to claim 1, wherein component (d) is present in a quantity of 1 to 20 wt. %, relative to the total weight of the composition.

9. The dental composite composition according to claim 1, wherein components (a) to (d) are present in the following ranges:

(a) 4 to 68.99 wt.-%;

(b) 0.01 to 3 wt.-%;

(c) 5 to 95 wt.-%; and

(d) 1 to 20 wt.-%.

10. The dental composite composition according to claim 1, wherein components (a) to (d) are present in the following ranges:

(a) 45 to 55 wt.-%;

(b) 0.1 to 2 wt.-%;

(c) 20 to 80 wt.-%; and

(d) 2 to 15 wt.-%.

11. The dental composite composition according to claim 10, wherein component (d) is present in an amount of 3 to 9 wt.-%.

12. The dental composite composition according to claim 1, wherein component (d) is a cured glass ionomer cement, which contains:

(1) an aluminum fluorosilicate glass or an aluminum silicate glass; and

(2) a sodium, calcium, aluminum, zinc, yttrium or lanthanum salt of a polymeric carboxylic acid, selected from the group consisting of polymaleic acid, polyacrylic acid, polyitaconic acid, maleic acid/acrylic acid copolymers, acrylic acid/itaconic acid copolymers, a polymeric phosphonic acid, and mixtures thereof.

13. The dental composite composition according to claim 12, wherein component (d) comprises particles having an average grain size of at least 3 μ

m.

14. The dental composite composition according to claim 12, wherein component (d) comprises particles having a maximum grain size of 20 μ

m.

15. The dental composite composition according to claim 12, wherein component (a) is an ethylenically unsaturated monomer or polymer of an acrylate or methacrylate;

component (b) is selected from the group consisting of benzoin alkyl ether, benzil cetals, acylphosphine oxides, aliphatic 1,2-diketone compounds, and aromatic 1,2-diketone compounds; and

component (c) is an inorganic filler selected from the group consisting of quartz, ground glasses, silica gels, and pyrogenic silicic acids.

16. The dental composite composition according to claim 12, further comprising as component (e) a member selected from the group consisting of pigments, X-ray-opaque additives, thixotrophic auxiliaries and plasticizers.

17. The dental composite composition according to claim 1, further comprising as component (e) a member selected from the group consisting of pigments, X-ray-opaque additives, thixotrophic auxiliaries and plasticizers.

6. A dental composite composition in the form of a material for prostheses, temporary fixtures, facing, fillings, a plastic for an orthodontic apparatus, false teeth, stump construction or a dental cement, wherein said composition comprises:

(a) one or more ethylenically unsaturated, polymerizable monomers on the basis of mono-, di- or polyfunctional (meth)acrylates;

(b) initiator;

(c) a filler; and

(d) one or more salts of acid-functional polymers having mono- or polyvalent cations.

7. A method of providing plaque-inhibiting properties to a dental composite composition, said method comprising the step of:

adding salts of acid-functional polymers having mono- or polyvalent cations, in a plaque-inhibiting amount to said dental composite composition.

8. The method of claim 7, wherein said dental composite composition is a cured glass ionomer cement.