Self-adhesive multicomponent dental material

Patent metadata

Field	Value
Publication number	US-9289359-B2
Application number	US-49996109-A
Country	US
Kind code	B2
Filing date	Jul 9, 2009
Priority date	Mar 23, 2009
Publication date	Mar 22, 2016
Grant date	Mar 22, 2016

Abstract

Curable multicomponent dental material, including a first paste, which contains (i) one or more acid group-free radically polymerizable monomers and (ii) basic filler, and a second paste, which contains (iii) one or more acid group-containing radically polymerizable monomers and (iv) non-basic filler, wherein the multicomponent dental material contains at least one initiator (v) for radical polymerization in at least paste (A) or (B).

First claim

What is claimed:

1. Curable multicomponent dental material, comprising
(A) a first paste, containing
(i) one or more acid group-free radically polymerizable monomers,
(ii) a basic filler,
(vii) a basic activator,
(viii) a photoinitiator which comprises camphorquinone, and
(ix) a non-basic filler which is selected from SiO 2 , neutral metal salts and their combinations,

(B) a second paste, containing
(iii) one or more acid group-containing radically polymerizable monomers which comprises at least one phosphonic acid group and/or phosphoric acid group,
(iv) non-basic filler,
(v) an initiator which contains peroxide,
(vi) one or more acid group-free radically polymerizable monomers and
wherein the dental material does not contain an added solvent,
wherein paste (A) does not contain acid group-containing radically polymerizable monomers and paste (B) does not contain basic filler, and
wherein the non-basic filler (iv) does not cause a broadening of a 31 P peak of the acidic monomer (iii) in a 31 P-NMR spectrum of monomer (iii).

2. Dental material according to claim 1 , in which the non-basic filler (iv) is selected from SiO 2 , neutral metal salts and their combinations.

3. Dental material according to claim 2 , in which the non-basic filler (iv) is selected from quartz, pyrogenic silica, precipitated silica, sol-gel silica, quartz glass, neutral fluorides of rare-earth metals, and their combinations.

4. Dental material according to claim 3 , which comprises ytterbium trifluoride.

5. Dental material according to claim 1 , in which the at least one acid group-containing radically polymerizable monomer (iii) contains at least one ethylenically unsaturated group, selected from acryloyl, methacryloyl, vinyl groups and their combinations, and at least one acid group, selected from phosphonic acid, phosphoric acid groups and their combinations.

6. Dental material according to claim 5 , in which the at least one acid group-containing radically polymerizable monomer (iii) is a radically polymerizable dihydrogen or hydrogenphosphate.

7. Dental material according to claim 1 , which contains at least one acid group-free radically polymerizable monomer (i), which has at least two ethylenically unsaturated groups.

8. Dental material according to claim 7 , wherein the ethylenically unsaturated groups are selected from acryloyl and methacryloyl groups.

9. Process for the preparation of a ready-to-use dental material comprising mixing paste (A) and paste (B) of the curable multicomponent dental material according to claim 1 , in a volume ratio in the range 0.4:0.6 to 0.6:0.4.

10. The process according to claim 9 , wherein the volume ratio is in the range 0.46:0.54 to 0.54:0:46.

11. Double syringe with a first and second reservoir, comprising a curable multicomponent dental material according to claim 1 , wherein paste (A) is contained in the first reservoir and paste (B) in the second reservoir.

12. Dental material according to claim 1 , wherein the peroxide is benzoylperoxide and the basic activator is an aromatic amine.

13. Dental material according to claim 1 , in which the non-basic filler (ix) is selected from quartz, pyrogenic silica, precipitated silica, sol-gel silica, quartz glass, neutral fluorides of rare-earth metals, and their combinations.

14. Dental material according to claim 1 , which contains at least one acid group-free radically polymerizable monomer (vi), which has at least two ethylenically unsaturated groups.

15. Dental material according to claim 1 , which contains barium-aluminium silicate glass filler in paste (A).

Assignees

• Burtscher Peter
• Eder Marion
• Kammann Axel
• Ivoclar Vivadent Ag

Inventors

• Burtscher Peter
• Eder Marion
• Kammann Axel

Classifications

• A61K6/30 Primary

  Compositions for temporarily or permanently fixing teeth or palates, e.g. primers for dental adhesives · CPC title

• C08L33/00

  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 title

• A61K6/0023 Primary

  Human Necessities · mapped topic