Skeletal Relapse After Mandibular Setback in Bi Max Surgery: Intraoral Vertical Ramus versus Bilateral Sagittal Split Osteotomies

Al-Delayme, Ra'ed Mohammed Ayoub; Al-Khen, Moutaz

doi:10.1007/s12663-013-0555-y

Cited by 7 publications

(10 citation statements)

References 32 publications

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“…The present findings support correlations between the magnitude of surgical movement and the subsequent skeletal relapse for both BSSO and IVRO surgical groups, which is in contrast to our previous findings [2] and another article regarding BSSO mandibular setback in double-jaw surgery [1].…”

Section: The Direction Of Mandibular Relapsesupporting

confidence: 87%

“…Post-treatment relapse is an unpredictable risk of orthognathic surgery [6]. Although the broad experience with this procedure, relapse or movement of an anatomic point toward its presurgical position is not uncommon [1,2,9,19], there is controversy regarding skeletal stability after bi-maxillary operation [22,25].…”

Section: The Direction Of Mandibular Relapsementioning

confidence: 99%

“…Consistently, many studies [1,2,9,10,19] are published concerning the stability of BSSO for the mandibular setback in bi-maxillary surgery in different techniques and modalities, but it is rather surprising that there are no reports concerning stability of IVRO in double-jaw surgery. The only three conducted studies in the literature discussed the IVRO stability in single-jaw surgery as isolated procedures [16,21,25] or as a comparison with BSSO in double-jaw surgery [1].…”

Section: The Direction Of Mandibular Relapsementioning

confidence: 99%

“…According to our knowledge, the last published article by the same author [2] was the first article that mentioned the relapse in these two procedures with limited sample during double-jaw surgeries. In fact, there has been no study that describes relapse and its directions in the vertical and horizontal planes after IVRO and BSSO in double-jaw surgery for correction of skeletal Class III deformity.…”

Section: Introductionmentioning

confidence: 99%

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The Direction of Double-Jaw Surgery Relapse for Correction of Skeletal Class III Deformity: Bilateral Sagittal Split Versus Intraoral Vertical Ramus Setback Osteotomies

Al-Delayme

Alsagban

Ahmed³

et al. 2018

J. Maxillofac. Oral Surg.

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Objectives This prospective comparative clinical trial study aims to investigate the postoperative stability of the double-jaw surgical treatment of skeletal Class III deformity and to compare two different mandibular surgical approaches. The study goal is to locate the relapsing direction of both the maxilla and the distal segment after either bilateral sagittal split ramus osteotomy (BSSO), or intraoral vertical ramus osteotomy (IVRO). Methods Twenty-two (22) patients with skeletal Class III were included in this study. The patients were treated with double-jaw surgery by LeFort I osteotomy combined with either BSSO or IVRO. Lateral cephalograms taken before (T0), immediately after (T1), and 1 year after the surgery (T2) were studied and analyzed. Result The mean mandibular setback and maxillary advancement in the BSSO group were 6.22 mm at B Point and 2.93 mm at A point with relapse percentages of 24.9 and 26.6%, respectively, while the mean mandibular setback and maxillary advancement in the IVRO group were 2.55 mm at B point and 5.89 mm at A point with relapse percentages of 22.1 and 23.5%, respectively. The magnitude of the setback significantly accounted for the relapse. Conclusion One-year follow-up revealed that the maxilla would be displaced posteriorly and inferiorly in both groups. Regarding the direction of the mandibular relapse, the mandible in BSSO surgical group was displaced forward and upward, while in IVRO surgical group, the directions were completely different in which the mandible is displaced backward and downward. Keywords Class III Á Orthognathic surgery Á Relapse Á Bilateral sagittal split osteotomy (BSSO) Á Intraoral vertical osteotomy (IVRO)

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Section: The Direction Of Mandibular Relapsesupporting

confidence: 87%

Section: The Direction Of Mandibular Relapsementioning

confidence: 99%

Section: The Direction Of Mandibular Relapsementioning

confidence: 99%

Section: Introductionmentioning

confidence: 99%

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The Direction of Double-Jaw Surgery Relapse for Correction of Skeletal Class III Deformity: Bilateral Sagittal Split Versus Intraoral Vertical Ramus Setback Osteotomies

Al-Delayme

Alsagban

Ahmed³

et al. 2018

J. Maxillofac. Oral Surg.

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“…Until the 1980s, mandibular setback using the bilateral sagittal split osteotomy (BSSO) or and intraoral vertical ramus osteotomy (IVRO) was the standard form of surgical correction . More recently, practice trends have shifted to maxillary advancement with or without mandibular setback in part due to concern that mandibular setback surgery, while beneficial to the facial profile and occlusion may have a negative impact on a patient's pharyngeal airway space (PAS) .…”

Section: Introductionmentioning

confidence: 99%

3D Airway changes using CBCT in patients following mandibular setback surgery ± maxillary advancement

Havron

Aronovich

Shelgikar

et al. 2019

Orthod Craniofacial Res

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Structured Abstract Introduction The aim of this study was to determine the 3D airway changes that occur following mandibular setback surgery alone vs bimaxillary surgery in patients with similar skeletal start forms. Setting and Sample Population The University of Michigan School of Dentistry and Medical Center. A total of 85 patients undergoing mandibular setback with or without simultaneous maxillary advancement. Materials and Methods A retrospective evaluation of pre‐ and post‐surgical CBCT scans for patients undergoing mandibular setback surgery alone (14) vs bimaxillary surgery (71) was performed. Cross‐sectional evaluation at standardized locations, minimum cross section and volumetric analysis were performed (Dolphin Imaging & Management Solutions). Results Patients who underwent mandibular setback surgery alone showed a statistically significant average increase of 47.5 mm2 in minimum axial area. Patients who underwent bimaxillary surgery showed a statistically significant increase in airway volume, minimum axial area, location of minimum axial area, and axial area at the retropalatal and retroglossal regions. Conclusions The results demonstrate that the mandible can be setback safely without decreasing airway dimensions. In borderline OSA patients, bimaxillary surgery remains the preferred approach due to the larger airway increases observed. Long‐term follow‐up with polysomnography must be conducted to determine the full functional implications of both procedures.

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Is There a Difference in Stability or Neurosensory Function Between Bilateral Sagittal Split Ramus Osteotomy and Intraoral Vertical Ramus Osteotomy for Mandibular Setback?

Al‐Moraissi

Ellis

2015

Journal of Oral and Maxillofacial Surgery

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Skeletal Relapse After Mandibular Setback in Bi Max Surgery: Intraoral Vertical Ramus versus Bilateral Sagittal Split Osteotomies

Abstract: The percentage of horizontal relapse after IVRO without fixation is equal to that after BSSO with semi rigid internal fixation.

Cited by 7 publications

References 32 publications

The Direction of Double-Jaw Surgery Relapse for Correction of Skeletal Class III Deformity: Bilateral Sagittal Split Versus Intraoral Vertical Ramus Setback Osteotomies

The Direction of Double-Jaw Surgery Relapse for Correction of Skeletal Class III Deformity: Bilateral Sagittal Split Versus Intraoral Vertical Ramus Setback Osteotomies

3D Airway changes using CBCT in patients following mandibular setback surgery ± maxillary advancement

Is There a Difference in Stability or Neurosensory Function Between Bilateral Sagittal Split Ramus Osteotomy and Intraoral Vertical Ramus Osteotomy for Mandibular Setback?

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