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  • Title: Bonding mechanism of Ketac-Molar Aplicap and Fuji IX GP to enamel and dentin.
    Author: Hosoya Y, García-Godoy F.
    Journal: Am J Dent; 1998 Oct; 11(5):235-9. PubMed ID: 10388383.
    Abstract:
    PURPOSE: To evaluate the bonding mechanism to enamel and dentin of two chemically-cured restorative glass ionomer cements (GICs). MATERIALS AND METHODS: Buccal surfaces of six caries-free premolars stored in a 1% chloramine solution were ground and then polished with 600 grit SiC paper to expose both enamel and dentin. Ketac-Molar Aplicap (after conditioned with Ketac-Conditioner) or Fuji IX GP (after conditioned with Cavity Conditioner) was applied on the enamel and dentin according to the manufacturers' instructions. Ketac-Molar Aplicap was coated with Ketac-Glaze and Fuji IX GP with GC Fuji Varnish. After 24-hr immersion in water, all teeth were sectioned bucco-lingually in the center of the bonded surface. Bonded interfaces of one of the halves of the sectioned specimens were etched with 35% phosphoric acid gel for 10 s and then soaked in 5% sodium hypochlorite solution for 5 min. All specimens were dehydrated with ethyl alcohol and dried with HMDS. Bonding interfaces were coated with gold-palladium and observed under the SEM. RESULTS: For both Ketac-Molar Aplicap and Fuji IX GP, an intimate adaptation between the material and the enamel was observed. Both materials bonded to dentin without gap formation. For both Ketac-Molar Aplicap and Fuji IX GP, neither resin tags nor hybrid layer was observed in any specimen.
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