title: [Study on the resin-ceramic adhesive bond strength using silane coupling agent treated by hydrolysis catalysts].
abstract: OBJECTIVE
  To study the effect of two kinds of silane coupling agent on bond strength of resin-ceramic adhesive.
  
  
  METHODS
  Four hundred and thirty-two ceramic samples were divided into 9 groups (48 per group), and in each group the ceramic surface was treated with r-methacryloxypropyletrimethoxysilane (MPTS) (50 g/L) in 99% ethanol (Primer A) and the mixture of hydrochloric acid (0.10 mol/L), phosphoric acid (0.05 mol/L) and acetic acid (0.01 mol/L) in 99% ethanol with the same volume (Primer B). Then the treated ceramic was bonded with resin cement (Link Max). The shear bond strength was tested after 5000 and 10 000 thermo-cycles and standing for 24 h.
  
  
  RESULTS
  The highest shear bond strengths [(19.5 ± 3.7) MPa, (15.7 ± 3.0) MPa and (14.6 ± 3.0) MPa] of the specimens were obtained with 0.05 mol/L hydrochloric acid. At acid solution of 0.10 mol/L, the specimens using hydrochloric acid [(10.6 ± 3.5) MPa] and phosphoric acid [(9.5 ± 2.7) MPa] showed remarkably higher strength than that using acetic acid [(6.3 ± 2.5) MPa, P < 0.05] after 10 000 thermo-cycles. When the concentration of acid solution was 0.05 mol/L, the shear bond strength of specimens from hydrochloric acid [(14.6 ± 3.0) MPa] was significantly higher than that using phosphoric acid [(6.3 ± 1.9) MPa] and acetic acid [(4.7 ± 1.8) MPa, P < 0.05]. When the concentration of acid solution reached 0.01 mol/L, the specimens using hydrochloric acid exhibited a dramatically increase in shear strength [(12.7 ± 3.2) MPa] compared with that using phosphoric acid [(2.3 ± 1.2) MPa, P < 0.05] and acetic acid [(1.5 ± 1.2) MPa, P < 0.05].
  
  
  CONCLUSIONS
  The maximum adhesive bond strength with highest durability was obtained using hydrochloric acid of 0.05 mol/L hydrolysis catalysts to treat siline couple agent.
authors.affiliation: Department of Prosthodontics, Stomatological Hospital, Tianjin Medical University, Tianjin 300070, China.
authors.forename: Rui
authors.initials: R
authors.lastname: Li
authors.forename: Chen
authors.initials: C
authors.lastname: Wang
authors.forename: Ying-chun
authors.initials: YC
authors.lastname: Sun
mesh_terms: D019342:Acetic Acid / Q000737:chemistry; D000269:Adhesives / Q000737:chemistry; D002516:Ceramics / Q000737:chemistry*; D001840:Dental Bonding; D003799:Dental Stress Analysis; D006851:Hydrochloric Acid / Q000737:chemistry; D006868:Hydrolysis; D008422:Materials Testing; D008689:Methacrylates / Q000737:chemistry; D010756:Phosphoric Acids / Q000737:chemistry; D019279:Resin Cements / Q000737:chemistry*; D033081:Shear Strength; D012821:Silanes / Q000737:chemistry*; D013499:Surface Properties
chemical_list: D000269:Adhesives; D008689:Methacrylates; D010756:Phosphoric Acids; D019279:Resin Cements; D012821:Silanes; C017492:methacryloxypropyltrimethoxysilane; C030242:phosphoric acid; D019342:Acetic Acid; D006851:Hydrochloric Acid