Chemical Analysis of a Novel Coating Material, CaTiO3-aC

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  • Okauchi-Yabuuchi Mika
    Department of Oral Pathology and Medicine, Okayama University Graduate School of Medicine, Dentistry and Pharmaceutical Sciences
  • Tamamura Ryo
    Department of Oral Pathology and Medicine, Okayama University Graduate School of Medicine, Dentistry and Pharmaceutical Sciences
  • Nagaoka Noriyuki
    Department of Oral Pathology and Medicine, Okayama University Graduate School of Medicine, Dentistry and Pharmaceutical Sciences
  • Takagi Shin
    Department of Oral and Maxillofacial Reconstructive Surgery, Okayama University Graduate School of Medicine, Dentistry and Pharmaceutical Sciences
  • Kishimoto Etsuo
    Department of Oral Health, Okayama University Graduate School of Medicine, Dentistry and Pharmaceutical Sciences
  • Takagi Tohru
    Department of Oral Pathology and Medicine, Okayama University Graduate School of Medicine, Dentistry and Pharmaceutical Sciences Center of Oral Health Science, International Dental Hygienist College in Okayama, Motoyama Gakuen
  • Rodriguez Andrea
    Department of Oral Pathology and Medicine, Okayama University Graduate School of Medicine, Dentistry and Pharmaceutical Sciences
  • Inoue Miho
    Department of Oral Pathology and Medicine, Okayama University Graduate School of Medicine, Dentistry and Pharmaceutical Sciences
  • Nagatsuka Hitoshi
    Department of Oral Pathology and Medicine, Okayama University Graduate School of Medicine, Dentistry and Pharmaceutical Sciences
  • Akao Masaru
    Center of Oral Health Science, International Dental Hygienist College in Okayama, Motoyama Gakuen
  • Nagai Noriyuki
    Department of Oral Pathology and Medicine, Okayama University Graduate School of Medicine, Dentistry and Pharmaceutical Sciences Center of Oral Health Science, International Dental Hygienist College in Okayama, Motoyama Gakuen

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Abstract:In the current study, we compared the recently developed CaTiO3-amorphous carbon (CaTiO3-aC) as a bone inducing coating material with HA from aspects of surface electric charge and solubility. CaTiO3-aC had negative surface electric charge similar to HA. Thus similar tissue reaction and bone inducing ability were considered to obtain. On the other hand solubility of CaTiO3-aC coating was lower than HA. Moreover though CaTiO3-aC itself showed low solubility, CaCO3 was found to be included in it, and long-term slow Ca2+ release occurred. Thus the sample was suggested to be used as an ion exchange material. When the implant using Ti/CaTiO3-aC/HA double layer coating was developed, first bioactive state of the implant will continue due to HA character. Then even early resorption of HA occurs, bioactive state will continue due to CaTiO3-aC layer. Therefore Ti base will not expose. This result is supposed to contribute long term success of the implant.

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