title: Shear bond strength between autopolymerizing acrylic resin and Co-Cr alloy using different primers.
abstract: This study aimed to examine the shear bond strength between cobalt chromium alloy and autopolymerizing acrylic resin using experimental primers containing 5, 10, and 15 wt% of 4-methacryloxyethyl trimellitic anhydride or 1, 2, and 3 wt% of 3-methacryloxypropyl-trimethoxysilane comparison to 5 commercial primers (ML primers, Alloy primer, Metal/Zirconia primer, Monobond S, and Monobond plus). Sixty alloy specimens were sandblasted and treated with each primer before bonded with an acrylic resin. The control group was not primed. The shear bond strengths were tested and statistically compared. Specimens treated with commercial primers significantly increased the shear bond strength of acrylic resin to cobalt chromium alloy (p<0.05). The highest shear bond strength was found in the Alloy primer group. Among experimental group, using 10 wt% of 4-methacryloxyethyl trimellitic anhydride -or 2 wt% of 3-methacryloxypropyltrimethoxysilane enhanced highest shear bond strength. The experimental and commercial primers in this study all improved bonding of acrylic resin to cobalt chromium alloy.
authors.affiliation: Dental Biomaterials Program, Faculty of Dentistry, Mahidol University, Yothi Rajthevee Rd., Bangkok, Thailand.
authors.forename: Sasiwimol
authors.initials: S
authors.lastname: Sanohkan
authors.forename: Somchai
authors.initials: S
authors.lastname: Urapepon
authors.forename: Choltacha
authors.initials: C
authors.lastname: Harnirattisai
authors.forename: Chakrit
authors.initials: C
authors.lastname: Sirisinha
authors.forename: Panya
authors.initials: P
authors.lastname: Sunintaboon
mesh_terms: D002858:Chromium Alloys / Q000737:chemistry*; D001840:Dental Bonding; D003738:Dental Cements / Q000737:chemistry; D045662:Dental Etching / Q000379:methods; D003764:Dental Materials / Q000737:chemistry*; D003799:Dental Stress Analysis / Q000295:instrumentation; D006801:Humans; D008422:Materials Testing; D008689:Methacrylates / Q000737:chemistry; D010746:Phosphonoacetic Acid / Q000031:analogs & derivatives / Q000737:chemistry; D019904:Polymethyl Methacrylate / Q000737:chemistry*; D019279:Resin Cements / Q000737:chemistry*; D033081:Shear Strength; D012821:Silanes / Q000737:chemistry; D013314:Stress, Mechanical; D013499:Surface Properties; D013871:Thiones / Q000737:chemistry
chemical_list: C542237:3-methacryloxypropyltrimethoxysilane; C546895:6-methacryloyloxyhexyl phosphonoacetate; C521707:Alloy Primer; D002858:Chromium Alloys; D003738:Dental Cements; D003764:Dental Materials; D008689:Methacrylates; C076808:Monobond S; D019279:Resin Cements; D012821:Silanes; D013871:Thiones; C100646:Metal Primer; C034139:4-methacryloxyethyltrimellitic acid anhydride; C069749:methacryloyloxydecyl dihydrogen phosphate; D019904:Polymethyl Methacrylate; D010746:Phosphonoacetic Acid