Effects of surface treatment on the osseointegration potential of orthodontic mini-implant.
10.4041/kjod.2008.38.5.328
- Author:
Mi sun JEON
1
;
Yoon Goo KANG
;
Sung Seo MO
;
Keun Hye LEE
;
Yoon Ah KOOK
;
Seong Hun KIM
Author Information
1. Graduate School of Clinical Dental Science, The Catholic University of Korea, Seoul, Korea.
- Publication Type:Original Article
- Keywords:
Surface treatment;
Removal torque;
Osseointegration;
Skeletal anchorage
- MeSH:
Adult;
Humans;
Osseointegration;
Osteogenesis;
Rabbits;
Tibia;
Torque
- From:Korean Journal of Orthodontics
2008;38(5):328-336
- CountryRepublic of Korea
- Language:Korean
-
Abstract:
OBJECTIVE: The purpose of this study was to compare the torque resistance to removal of sandblasted large grit and acid etched (SLA) surface treated orthodontic mini-implants and smooth surface orthodontic mini-implants as well as performing histologic observations. METHODS: Two groups of custom screw shaped orthodontic mini-implants (C-implant, 1.8 mm outer diameter x 9.5 mm length, Cimplant, Seoul, Korea) were designated. 22 SLA treated C-implants (SLA group) and 22 machined surface C-implants (machined group) were placed in the tibia metaphysis of 11 adult New Zealand white rabbits. Following a 6-week healing period, the rabbits were sacrificed. Subsequently, the C-implants were removed under reverse torque rotation with a digital torque measuring device and independent t-test was performed. Selected tissues were prepared for histologic observation. RESULTS: The SLA group presented a higher mean removal torque value (6.286 Ncm) than the machined group (4.491 Ncm) which was statistically significant (p < 0.005). Histologic observation revealed a trend of more new bone formation in contact with the screw surface in the SLA group than the smooth group. CONCLUSIONS: The results of this study suggested that SLA surface treatment can enhance the osseintegration potential for C-orthodontic mini-implants.
