Influence of surface treatment on the insertion pattern of self-drilling orthodontic mini-implants / 대한치과교정학회지
Korean Journal of Orthodontics
;
: 268-279, 2011.
Article
in Korean
| WPRIM
| ID: wpr-650543
ABSTRACT
OBJECTIVE:
The purpose of this study was to compare self-drilling orthodontic mini-implants of different surfaces, namely, machined (untreated), etched (acid-etched), RBM (treated with resorbable blasting media) and hybrid (RBM + machined), with respect to the following criteria physical appearance of the surface, measurement of surface roughness, and insertion pattern.METHODS:
Self-drilling orthodontic mini-implants (Osstem implant, Seoul, Korea) with the abovementioned surfaces were obtained. Surface roughness was measured by using a scanning electron microscope and surface-roughness-testing machine, and torque patterns and vertical loadings were measured during continuous insertion of mini-implants into artificial bone (polyurethane foam) by using a torque tester of the driving-motor type (speed, 12 rpm).RESULTS:
The mini-implants with the RBM, hybrid, and acid-etched surfaces had slightly increased maximum insertion torque at the final stage (p < 0.05). Implants with the RBM surface had the highest vertical load for insertion (p < 0.05). Testing for surface roughness revealed that the implants with the RBM and hybrid surfaces had higher Ra values than the others (p < 0.05). Scanning electron microscopy showed that the implants with the RBM surface had the roughest surface.CONCLUSIONS:
Surface-treated, self-drilling orthodontic mini-implants may be clinically acceptable, if controlled appropriately.
Full text:
Available
Index:
WPRIM (Western Pacific)
Main subject:
Microscopy, Electron, Scanning
/
Chimera
/
Torque
/
Electrons
Language:
Korean
Journal:
Korean Journal of Orthodontics
Year:
2011
Type:
Article
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