Insertion torque, pull-out strength and cortical bone thickness in contact with orthodontic mini-implants at different insertion angles
نویسندگان
چکیده
منابع مشابه
Insertion torque, pull-out strength and cortical bone thickness in contact with orthodontic mini-implants at different insertion angles.
This study aimed to evaluate biomechanical behaviour of inclined orthodontic mini-implants by analyzing its insertion torque (IT), axial pull-out strength (APS), and cortical bone thickness in contact with mini-implant (CBTC). A total of 102 mini-implants were inserted at 90 degree, 60 degree, and 45 degree to the surface of synthetic bone. Peak IT was measured, and the mini-implants were align...
متن کاملInsertion torque versus mechanical resistance of mini-implants inserted in different cortical thickness
OBJECTIVE This study aimed to measure insertion torque, tip mechanical resistance to fracture and transmucosal neck of mini-implants (MI) (Conexão Sistemas de PróteseT), as well as to analyze surface morphology. METHODS Mechanical tests were carried out to measure the insertion torque of MIs in different cortical thicknesses, and tip mechanical resistance to fracture as well as transmucosal n...
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BACKGROUND Hitting a dental root during the insertion of orthodontic mini-implants (OMIs) is a common adverse effect of this intervention. This condition can permanently damage these structures and can cause implant instability. Increased torque levels (index test) recorded during the insertion of OMIs may provide a more accurate and immediate diagnosis of implant-root contact (target condition...
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BACKGROUND Primary stability is an important factor for the clinical success of orthodontic mini-screws. The present study made an attempt to evaluate the effect of insertion angle changes on the maximum insertion and removal torque of orthodontic mini-screws. MATERIALS AND METHODS In this experimental study, 72 mini-screws (Dual Top Anchor System, Jeil, 1.6 mm diameter, 8 mm length) were use...
متن کاملGeometrical design characteristics of orthodontic mini-implants predicting maximum insertion torque
OBJECTIVE To determine the unique contribution of geometrical design characteristics of orthodontic mini-implants on maximum insertion torque while controlling for the influence of cortical bone thickness. METHODS Total number of 100 cylindrical orthodontic mini-implants was used. Geometrical design characteristics of ten specimens of ten types of cylindrical self-drilling orthodontic mini-im...
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ژورنال
عنوان ژورنال: The European Journal of Orthodontics
سال: 2013
ISSN: 0141-5387,1460-2210
DOI: 10.1093/ejo/cjs095