Synthesis of new silane coupling agents with a trimellitic anhydride group and application as primers for ceramics and alloys.
With a view to improving the bond strength of resin to dental ceramics and alloys, new silane coupling agents, namely 4-trichlorosilylpropyl- and 4-trimethoxysilylpropyl-trimellitic anhydride (4-CSTA and 4-MSTA, respectively), were synthesized. In addition, silane mixtures of 4-CSTA with 3-methacryloyloxypropyltrimethoxysilane (3-MPS) and 4-MSTA with 3-MPS were used as primers for adhesion of poly (methyl methacrylate) to glass, silver-palladium-gold alloy (Ag-Pd alloy), and cobalt-chromium alloy (Co-Cr alloy). The tensile bond strengths of resin to glass using 4-CSTA+3-MPS and 4-MSTA+3-MPS were 28.5 +/- 5.3 and 23.9 +/- 8.1 MPa respectively. With the metal alloys, the strengths were 14.8 +/- 5.3 MPa for Ag-Pd alloy and 24.7 +/- 7.2 MPa for Co-Cr alloy. In the light of these results obtained, it seemed that the mixture of 4-MSTA and 3-MPS was an effective primer for both metals and ceramics.
Kurata
Shigeaki
S
Department of Biomaterials and Devices, Kanagawa Dental College, 82 Inaoka-cho, Yokosuka, Kanagawa 238-8580, Japan. kuratas@kdcnet.ac.jp
Umemoto
Kozo
K
D000704:Analysis of Variance; D003722:Dental Alloys / Q000737:chemistry*; D001840:Dental Bonding; D003776:Dental Porcelain / Q000737:chemistry*; D003799:Dental Stress Analysis; D008422:Materials Testing; D008689:Methacrylates / Q000138:chemical synthesis / Q000737:chemistry; D010796:Phthalic Anhydrides / Q000737:chemistry*; D019279:Resin Cements / Q000737:chemistry*; D012821:Silanes / Q000138:chemical synthesis* / Q000737:chemistry; D013718:Tensile Strength
D003722:Dental Alloys; D008689:Methacrylates; D010796:Phthalic Anhydrides; D019279:Resin Cements; D012821:Silanes; D003776:Dental Porcelain; C017492:methacryloxypropyltrimethoxysilane; C015559:trimellitic anhydride; C065893:trichlorosilane