Re: Mandibular stability using sliding or conventional four-hole plates for fixation after bilateral sagittal split ramus osteotomy for mandibular setback

We read with interest the recent study by Lee et al,1 in which they evaluated the amount of relapse that resulted from the use of four-hole plates in mandibular setback surgery with bilateral sagittal split ramus osteotomy, and compared it with three-hole sliding plates. They referred to earlier studies2–5 that evaluated stability postoperatively, and the amount of relapse depending on methods of fixation. They stated that in all the studies four-hole sliding plates were used for the fixation of proximal and distal segments, and compared their mean (SD) horizontal relapses at point B (1.4 (1.3)mm, 1.05 (1.31)mm, 1.7 (2.0)mm, 2.97 (1.77)mm, respectively) with the results of another study by Ghang et al,6 in which three-hole sliding plates were used and had a mean (SD) horizontal relapse at point B of 2.13(1.89)mm.

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