Development of CaTiO3-C coating material for Dental Implant


Mika Okauchi1, Ryo Tamamura1, Ko Kai Ryuu1, 2, Kan Rui1, 2, Jing Xiao1, 3, Keisuke Nakano1, Noriyuki Nagaoka1, Katsunori Kanata1, Toru Takagi1, Masaru Akao1 and Noriyuki Nagai1

1Department of Oral Pathology, Graduate School of Medicine, Dentistry and Pharmaceutical Sciences, Okayama University, Japan

2China Medical University, China

3Department of Oral Pathology, College of Stomatology, Dalian Medical University, China


One of the most relevant advances in restorative dentistry is the replacement of lost teeth by osseointegrated implants. Titanium implants coated with hydroxyapatite (HA) is commonly used but bonding between these two materials is weak. In this regard, a binding material called calcium titanate with amorphous carbon (CaTiO3-C) has been developed to enhance the bond strength and stability without increasing the interface between HA and titanium.  Modified thermal decomposition method was used to increase Ca/P and Ca/Ti ratios and to decrease sintering temperature. Results revealed that a thin and homogenous coating was created between HA and titanium enhancing the bond strength as well as the stability of the implant.