[Microcosmic analysis of TCP/HA coating with micro-pores on titanium by IBAD method.].
OBJECTIVE
In order to improve the biocompatibility of dental implants, the physical structure and the chemical composites of tricalcium phosphate/hydroxyapatite(TCP/HA) coating on titanium were studied.


METHODS
Coatings of TCP/HA and hydroxyapatite (HA) on titanium were formed by ion beam assisted deposition (IBAD) method. The scanning electron microscope (SEM) and atomic force microscope (AFM) were used to study the morphology of the coating surfaces. The chemical components and structure of the modified surfaces were characterized using energy dispersive X-ray analysis (EDX) and X-ray diffraction (XRD).


RESULTS
The results showed that there were many micro-pores in the TCP/HA coating by SEM and AFM. The chemical components analysis showed that the Ca/P ratio of TCP/HA coating was lower than that of HA coating. The XRD showed that the TCP/HA coating was composed of TCP and HA.


CONCLUSIONS
The results indicated that the TCP/HA coating with micro-pores was formed on titanium by IBAD method successfully. With higher binding strength between TCP/HA and titanium, this coating will be a potential coating material for dental implant, especially for the biological seal at the cervical level of the implant.
Zhao
Bao-hong
BH
Department of Prosthodontics, School of Stomatology, Peking University, Beijing 100081, China.
Bai
Wei
W
Cui
Fu-zhai
FZ
Feng
Hai-lan
HL
D002130:Calcium Phosphates / Q000737:chemistry; D015921:Dental Implants; D017886:Durapatite / Q000737:chemistry; D014025:Titanium / Q000737:chemistry; D014961:X-Ray Diffraction
D002130:Calcium Phosphates; D015921:Dental Implants; D017886:Durapatite; D014025:Titanium; C018392:tricalcium phosphate