Marginal adaptation of nine commercial intermediate resins.
The bonding efficacy of nine commercially available intermediate resins was examined by measuring the maximum contraction gap of a light-activated composite in a cylindrical cavity of human dentin. With only one exception, the marginal adaptation of the composite improved significantly when the intermediate resins were combined with an experimental dentin cleaning system of the neutralized 0.5 mol/L EDTA and a dentin primer composed of a 35% aqueous solution of either hydroxyethyl methacrylate (HEMA) or glyceryl methacrylate (GM). Complete marginal adaptation was obtained with four tested materials when dentin was pre-treated with EDTA and GM.
Department of Operative Dentistry, School of Dentistry, Showa University, Tokyo, Japan.
H
H
Chigira
K
K
Itoh
S
S
Wakumoto
D000704:Analysis of Variance; D003188:Composite Resins; D001840:Dental Bonding; D003804:Dentin; D004492:Edetic Acid; D005989:Glycerides; D006801:Humans; D008422:Materials Testing; D008689:Methacrylates; D013499:Surface Properties
D003188:Composite Resins; D005989:Glycerides; D008689:Methacrylates; C069750:glyceryl methacrylate; C005044:hydroxyethyl methacrylate; D004492:Edetic Acid