Abstract
A bilateral sagittal split osteotomy was performed on seven fresh cadaver mandibles. Three different systems of fixation were mechanically tested on 14 sites. Tensile diagrams were obtained in which the (offset-) yield point was measured. This resulted in mean yield stresses of 199 N for bicortical selftapping screws ( n = 6), 49 N for miniplates with monocortical screws ( n = 5), and 113 N for bicortical biodegradable rods ( n = 3).
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