Importance of polymerization initiator systems and interfacial initiation of polymerization in adhesive bonding of resin to dentin.
Although various adhesive resins for dentin have been developed and used clinically, most attention has been directed to adhesion-promoting monomers and pre-treatment agents. The role of polymerization initiator systems in bonding has been overlooked. The purpose of this work was to study the role of initiators from the viewpoint of interfacial initiation of polymerization in dentin bonding. The bond strength between dentin and methyl methacrylate resin was significantly improved by a possible interfacial initiation with (1) the combination of ferric chloride, adsorbed onto dentin, and oxidized tri-n-butylborane (TBBO) and (2) the addition of tertiary butyl peroxymaleic acid (containing a carboxylic acid group, which has an affinity with dentin) to chemically- or light-activated initiator systems.
Imai
Y
Y
Institute for Medical and Dental Engineering, Tokyo Medical and Dental University, Japan.
Kadoma
Y
Y
Kojima
K
K
Akimoto
T
T
Ikakura
K
K
Ohta
T
T
D000134:Acid Etching, Dental; D000180:Acrylic Resins / Q000737:chemistry; D000269:Adhesives / Q000737:chemistry*; D001896:Boron Compounds / Q000737:chemistry; D002712:Chlorides; D001840:Dental Bonding; D003738:Dental Cements / Q000737:chemistry*; D003804:Dentin; D005290:Ferric Compounds / Q000737:chemistry; D008298:Maleates / Q000737:chemistry; D008422:Materials Testing; D008689:Methacrylates / Q000737:chemistry; D020366:Methylmethacrylate; D008768:Methylmethacrylates / Q000737:chemistry; D013718:Tensile Strength
D000180:Acrylic Resins; D000269:Adhesives; D001896:Boron Compounds; D002712:Chlorides; D003738:Dental Cements; D005290:Ferric Compounds; D008298:Maleates; D008689:Methacrylates; D008768:Methylmethacrylates; C009523:tri-n-butylborane; D020366:Methylmethacrylate; C034139:4-methacryloxyethyltrimellitic acid anhydride; C030272:maleic acid; C049495:Super-bond; C024555:ferric chloride