Development of a nano-TiO_2 ceramic-coated orthodontic bracket
- VernacularTitle:纳米陶瓷涂层托槽的研制
- Author:
Lei SHU
;
Yin DING
;
Yong CAO
- Publication Type:Journal Article
- Keywords:
Orthodontic bracket;
Anatase;
Electron beam physical vapor deposition;
Transmission electron microscopy;
X ray powder diffraction
- From:
Journal of Practical Stomatology
1996;0(02):-
- CountryChina
- Language:Chinese
-
Abstract:
Objective:To develop nano-TiO_2 ceramic-coated orthodontic brackets, and to study the surface characters of ceramic film. Methods:TiO_2 nanoparticles were synthesized by the Gel-Sol method. Electron beam physical vapor deposition(e-beam PVD)technology was used to deposit the nano-TiO_2 ceramic film on the surface of the orthodontic brackets, which were manufactured by the Xinya factory, Hangzhou.The surface properties of the nano-TiO_2 ceramic film were observed with scanning electron microscopy(SEM),transmission electron microscopy(TEM) and X ray power diffraction(XRD).Results:The synthesized TiO_2 particles were uniform with the diameter of (6?2) nm. The TiO_2 ceramic film on the orthodontic brackets was 5~8 ?m in thickness, with smooth surface and anatase stratiform structure.Conclusions:The nano- TiO_2 ceramic film has good surface properties and actinochemistry characters without any influence on the slot size.
