The effect of vertical bracket positioning on torque and the resultant stress in the periodontal ligament—a finite element study


BACKGROUND The ideal built-in tip and torque values of the straight wire appliance reduce the need for wire bending and hence reduce chair time. The vertical position of the bracket on the tooth surface can alter the torque exerted on the tooth. This is a result of the altered surface curvature observed at each vertical position. To further clarify the role… (More)
DOI: 10.1186/s40510-014-0050-0


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