Dental adhesive compositions and methods

Abstract

Two-part and one-part self-etching dental adhesives containing polymerizable acidic monomers. Methods include one-coat application without need for tooth etching.

1 . A dental adhesive comprising:
 (i) from about 5 to about 70% by weight of polymerizable acids components selected from the group consisting of PENTA, OEMA and mixtures thereof;   (ii) from about 1 to about 30% by weight of hydrophilic methacrylate;   (iii) from about 1 to about 25% by weight of hydrophilic difunctional (meth)acrylate;   (iv) from about 1 to about 35% by weight of Urethane methacrylate;   (v) from about 1 to about 30% by weight of hydrophobic difunctional (meth)acrylate;   (vi) from about 0.1 to about 5% photoinitiator of (phosphine oxide, and/or CQ/co-initiator selected from the group consisting of Lucerin TPO, CQ/EDAB and CQ/DMABN);   (vii) from about 0.1 to about 5% curing additives selected from the group consisting of aromatic sulfinate salts;   (viii) from about 0.1 to about 5% fluoride-releasing ingredient selected from the group consisting of cetylamine hydrofluoride (CAF);   (ix) from about 0.1 to about 10% filler particles selected from the group consisting of fumed silica and functionalized nano-particles;   (x) from about 0.05 to about 2% stabilize;   (xi) from about 1 to about 40% water; and   (xii) from about 5 to about 60% water-miscible polar organic solvent selected from the group consisting of acetone and alcohol.   
   
   
       2 . A dental adhesive comprising:
 (i) from about 5 to about 50% by weight of polymerizable acids components selected from the group consisting of PENTA, 4-META and mixtures thereof;   (ii) from about 1 to about 20% by weight of hydrophilic methacrylate;   (iii) from about 1 to about 15% by weight of hydrophilic difunctional (meth)acrylate;   (iv) from about 1 to about 30% by weight of Urethane dimethacrylate;   (v) from about 1 to about 30% by weight of hydrophobic difunctional (meth)acrylate;   (vi) from about 0.1 to about 5% photoinitiators of (phosphine oxide, and/or CQ/co-initiator selected from the group consisting of Lucerin TPO, CQ/DMABN combination and L-TPO/CQ/EDAB combination);   (vii) from about 0.1 to about 5% curing additives selected from the group consisting of aromatic sulfinate salts;   (viii) from about 0.1 to about 5% fluoride-releasing ingredient selected from the group consisting of cetylamine hydrofluoride (CAF);   (ix) from about 0.1 to about 10% filler particles selected from the group consisting of fumed silica and functionalized nano-particles;   (x) from about 0.05 to about 2% stabilize;   (xi) from about 1 to about 35% water; and   (xii) from about 5 to about 60% water-miscible polar organic solvent selected from the group consisting of acetone or alcohol.