Comparative evaluation of bioactive cements on biomimetic remineralization of dentin

• Nazanin Daneshpoor ^[2] ; Leila Pishevar ^[1]
  1. [1] Islamic Azad University

     Islamic Azad University

     Irán

     
  2. [2] Restorative dentistry specialist
• Localización: Journal of Clinical and Experimental Dentistry, ISSN-e 1989-5488, Vol. 12, Nº. 3 (March), 2020, págs. 291-299
• Idioma: inglés
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• Resumen

  • This study was designed to quantitatively compare the presence of apatite peaks on demineralized dentin to induced bio-mimetically by bioactive commercial materials.

    Dentin slice specimens (n=6) were prepared and demineralized by by17% EDTA for 2 hours. Each disks materials (Theracal, Biodentine, CPP-ACP) were freshly prepared and was maintained in close contact with a demineralized dentin specimen immersed in PBS solution during one week. To evaluation of bioactivity, cements disks (n=6) were prepared from each material and immersed in PBS solution for one week. The bioactivity and remineralization ability was evaluated using FTIR spectroscopy and Scanning Electron Microscopy. The Ca/P ratio of the surface of dentin and cements disks were compared with one -way ANOVA, independent T test and Duncan test (α=0.05).

    Ca/P weight ratio of Biodentine (187.5) was significantly higher than Theracal (10.10) and Theracal higher than CPP-ACP (0.37) (P=0.008). Demineralized dentin in contact with Test materials, indicated Ca and P peak after 7 days, but not showed statistically differences between the groups (P=0.08).

    The outcome revealed that bioactive cements and CPP-ACP had bioactivity capability during one week. Biodentine had higher bioactivity between others. Demineralized dentin could be remineralized with bioactive materials.