Development of CaTiO₃-C coating material for Dental Implant

Mika Okauchi¹, Ryo Tamamura¹, Ko Kai Ryuu^{1, 2}, Kan Rui^{1, 2}, Jing Xiao^{1, 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.