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The Direction Of Distal Segment Relapses After Mandibular Setback Surgery Vertical Ramus Versus Bilateral Sagittal Split Osteotomies | ||
| Journal of University of Babylon | ||
| Article 1, Volume 21, Issue 3, 2013, Pages 1076-1085 | ||
| Authors | ||
| ed Mohammed Ayoub Al-Delayme; Qutabah Abdul Razak; Hassan Ali Hamzah | ||
| Abstract | ||
| The present study evaluates the direction of postoperative horizontal and vertical changes (relapse) that occur at B point and pogonion after vertical ramus osteotomy (VRO) without fixation and bilateral sagital split osteotomy (BSSO) with semirigid internal fixation in mandibular setback operation in eleven patients with mandibular setback operation B.S.SO (n=6), V.R.O(n=5) . Postoperative changes (relapse) of B-point and Pogonion in horizontal and vertical axis from 1 week post operatively (T0) to 1 year post operatively (T2) were assessed and compared with initial direction of set back. In all VRO cases, distal segments moved posteriorly and inferiorly immediately after the release of MMF.As for in BSSO cases, distal segments moved anteriorly and supereriorly immediately after the release of MMF | ||
| Keywords | ||
| Relapse; B point; pogonion; Vertical ramus osteotomy; bilateral sagital split osteotomy | ||
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