[The morphological study of bone-implant interfaces in vivo].
OBJECTIVE
To evaluate the bone-implant interfaces of two kinds of implants with different surfaces in different time in vivo.


METHODS
CDIC and ITI-TPS solid-screw cylinder pure titanium implants were selected and implanted in the regions of posterior molars of rhesus monkeys. 1 month, 2 months, 3 months and 1 year after surgery, the bone-implant interfaces were evaluated respectively through oral examination, X-ray inspection, light microscope and scanning electron microscope (SEM) observation.


RESULTS
None of the implants was loose. Soft tissue around implants appeared no inflammation. There were no apparent transparent shadow around the implants interfaces in X-ray photos except little angle-shaped absorption was showed in neck region of CDIC implants of one-month. New bone was observed around implants of one-month through light microscope and SEM. More bone growing around ITI implants were seen than that around CDIC implants except the interfaces of one-year.


CONCLUSIONS
The osseointegration of ITI implants are better than that of CDIC implants during three months after implanting without loading. The bone formation at the interfaces of ITI and CDIC implants has no significant difference after one year without loading.
College of Stomatology, Kunming Medical College, Kunming 650031, China.
Zhong-juan
ZJ
Ding
Qiang
Q
Dong
Xu-hui
XH
Xiao
Bao-cai
BC
Dong
Jing
J
Wang
Xing
X
Liang
D000818:Animals; D015921:Dental Implants; D008253:Macaca mulatta; D008963:Molar; D016348:Osseointegration; D014025:Titanium
D015921:Dental Implants; D014025:Titanium