Abstract
The Erich arch bar is an important surgical device to secure occlusion for jawbone fracture treatment including open and closed reduction, prior to temporomandibular joint and maxillofacial reconstructive surgery, and occasionally skeletofacial deformity correction. The main concern for placement of the Erich arch bar is time consumption during surgery due to a trial and error approach to wire tightening. The objective of this research was to determine the number of wire twists needed to acquire ideal Erich arch bar tightness before wire fracture (fatigue failure) in relationship to the different distance and angle at which the surgeon grasps the wire with the wire holder. Using this multi-variable clinical experiment, these data were used to present oral and maxillofacial surgeons with a primary clinical guide to aid in the application of Erich arch bars.
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