title: Effect of the concentrations of calcium chloride and synthetic peptides in primers on dentin bond strength of an experimental adhesive system.
abstract: The purpose of this study was to evaluate the microtensile bond strength (MTBS) of an experimental adhesive system, which was prepared using different concentrations of calcium chloride (CaCl(2)) and synthetic peptides (pA/pB). Specimens were divided into six experimental groups and two control groups. In the experimental groups, self-etching primers used in the adhesive system comprised both Primer-I (Clearfil SE Bond Primer (SEP) containing 1, 5, or 10 wt% CaCl(2)) and Primer-II (SEP containing 0.1, 1, 5, or 10 wt% pA/pB). The negative control group used Primer-I containing 10 wt% CaCl(2 )and Primer-II containing 10 wt% pA/pB. The positive control group used Clearfil SE Bond only. Respective primers, bonding resin, and composite paste were applied and photopolymerized individually on flattened dentin surfaces of extracted human molars. All specimens were subjected to MTBS testing (n=20). Two-way ANOVA revealed significant differences in MTBS among CaCl(2 )concentrations in Primer-I and pA/pB concentrations in Primer-II (p<0.001), and there was a significant interaction between these two factors (p=0.011).
authors.affiliation: Department of Operative Dentistry, The Nippon Dental University School of Life Dentistry at Niigata, Japan. shinkaik@ngt.ndu.ac.jp
authors.forename: Koichi
authors.initials: K
authors.lastname: Shinkai
authors.forename: Yoshihisa
authors.initials: Y
authors.lastname: Taira
authors.forename: Masaya
authors.initials: M
authors.lastname: Suzuki
authors.forename: Chikage
authors.initials: C
authors.lastname: Kato
authors.forename: Junichi
authors.initials: J
authors.lastname: Yamauchi
authors.forename: Shiro
authors.initials: S
authors.lastname: Suzuki
authors.forename: Yoshiroh
authors.initials: Y
authors.lastname: Katoh
mesh_terms: D000268:Adhesiveness; D002122:Calcium Chloride / Q000737:chemistry*; D003188:Composite Resins / Q000737:chemistry; D001840:Dental Bonding; D019551:Dental Disinfectants / Q000737:chemistry; D003804:Dentin / Q000648:ultrastructure*; D017886:Durapatite / Q000737:chemistry; D016326:Extracellular Matrix Proteins / Q000737:chemistry*; D006801:Humans; D006861:Hydrogen Peroxide / Q000737:chemistry; D008422:Materials Testing; D008689:Methacrylates / Q000737:chemistry; D010750:Phosphoproteins / Q000737:chemistry*; D058105:Polymerization; D019279:Resin Cements / Q000737:chemistry; D012973:Sodium Hypochlorite / Q000737:chemistry; D013314:Stress, Mechanical; D013499:Surface Properties
chemical_list: C112828:Clearfil AP-X; C438313:Clearfil SE Bond; D003188:Composite Resins; C513309:DMP1 protein, human; D019551:Dental Disinfectants; D016326:Extracellular Matrix Proteins; D008689:Methacrylates; D010750:Phosphoproteins; D019279:Resin Cements; C541508:clearfil majesty; D017886:Durapatite; D006861:Hydrogen Peroxide; D012973:Sodium Hypochlorite; D002122:Calcium Chloride