Development of self-etching primer adhesive in all-in-one bonding system.
The self-etching primer adhesives examined in the present study were aqueous mixtures of 5 wt% MDP, 35 wt% HEMA, 3 wt% 2-hydroxyl-3-(3,4-dimethyl-9-oxo-9H-thioxanthen-2-yloxy)-N,N,N-trimethyl-1-propanaminium chloride (QTX), 0.5 wt% ethyl-p-(N,N-dimethylamino)benzoate (EDM), and 30 wt% water-soluble dimethacrylate (i.e., 2,2-bis(4-methacryloxy polyethoxypheny)propane (BPE), Glycerol dimethacrylate (GMR), or Glycerol methacrylate acrylate (GAM)). Self-etching primer adhesive was directly applied to polished bovine teeth. Tensile bond strength of composite resin to bovine teeth was measured after one-day immersion in water at 37 degrees C. Differences in water-soluble dimethacrylate monomer did not produce any significant differences in tensile bond strength to dentin or enamel. The use of N-phenyliminodiacetic acid (PIDAA) instead of EDM showed significantly higher bond strength to dentin and enamel. In conclusion, GMR and GAM were useful as water-soluble dimethacrylates while the combination of PIDAA and QTX was effective in improving the bond strength of composite resin to teeth in an all-in-one bonding system.
Hayakawa
Tohru
T
Department of Dental Biomaterials, Research Institute of Oral Science, Nihon University School of Dentistry at Matsudo, 2-870-1 Sakaecho Nishi, Matsudo, Chiba 271-8587, Japan. hayakawa@mascat.nihon-u.ac.jp
Kikutake-Sugiyama
Kazuyo
K
Fukushima
Tadao
T
Nemoto
Kimiya
K
D000134:Acid Etching, Dental / Q000379:methods*; D000268:Adhesiveness; D000269:Adhesives / Q000737:chemistry*; D000704:Analysis of Variance; D000818:Animals; D001565:Benzoates; D002417:Cattle; D001840:Dental Bonding; D004123:Dimethylamines; D007098:Imino Acids; D008422:Materials Testing; D008689:Methacrylates; D008855:Microscopy, Electron, Scanning; D015394:Molecular Structure; D044367:Phase Transition; D019279:Resin Cements / Q000737:chemistry*; D013718:Tensile Strength; D013892:Thioxanthenes
D000269:Adhesives; D001565:Benzoates; D004123:Dimethylamines; D007098:Imino Acids; D008689:Methacrylates; C104424:N-phenyliminodiacetic acid; D019279:Resin Cements; D013892:Thioxanthenes; C081315:Quantacure QTX; C005044:hydroxyethyl methacrylate