Effects of screw and host factors on insertion torque and pullout strength
نویسندگان
چکیده
منابع مشابه
A comparison of screw insertion torque and pullout strength.
PURPOSE Pullout strength of screws is a parameter used to evaluate plate screw fixation strength. However, screw fixation strength may be more closely related to its ability to generate sufficient insertion because stable nonlocked plate-screw fracture fixation requires sufficient compression between plate and bone such that no motion occurs between the plate and bone under physiological loads....
متن کاملEffect of Pilot Hole Tapping on Pullout Strength and Insertion Torque of Dual Core Pedicle Screws.
OBJECTIVE To evaluate the influence of pilot hole tapping on pullout resistance and insertion torque of pedicle screws with a conical core. METHODS Mechanical tests using a universal testing machine were performed on pedicle screws with a conical core that were inserted into pedicles in the fifth lumbar vertebra of calves. The insertion torque was measured using a torque meter with a capacity...
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ژورنال
عنوان ژورنال: The Angle Orthodontist
سال: 2012
ISSN: 0003-3219,1945-7103
DOI: 10.2319/070111-427.1