Justification de l’ordre mandibule-maxillaire dans l’ostéotomie maxillomandibulaire

Béziat, Julien; Babic, Benjamin; Ferreira, S.; Gleizal, A.

doi:10.1016/j.stomax.2009.09.009

Cited by 20 publications

(3 citation statements)

References 4 publications

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“…According to some authors, initiating the surgery by maxillary repositioning could perpetuate the inherent error of the sagittal osteotomy. On the other hand, if the mandible is operated on first, some imprecision could be compensated for by the maxillary surgery and thus this would be a more logical and preferable sequence 14 . For instance, 1 mm of error in mandibular repositioning can create a malocclusion.…”

Section: Discussionmentioning

confidence: 99%

Sequencing of bimaxillary surgery in the correction of vertical maxillary excess: retrospective study

Salmen

Oliveira

Gabrielli

et al. 2018

International Journal of Oral and Maxillofacial Surgery

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The aim of this study was to evaluate the precision of bimaxillary surgery performed to correct vertical maxillary excess, when the procedure is sequenced with mandibular surgery first or maxillary surgery first. Thirty-two patients, divided into two groups, were included in this retrospective study. Group 1 comprised patients who received bimaxillary surgery following the classical sequence with repositioning of the maxilla first. Patients in group 2 received bimaxillary surgery, but the mandible was operated on first. The precision of the maxillomandibular repositioning was determined by comparison of the digital prediction and postoperative tracings superimposed on the cranial base. The data were tabulated and analyzed statistically. In this sample, both surgical sequences provided adequate clinical accuracy. The classical sequence, repositioning the maxilla first, resulted in greater accuracy for A-point and the upper incisor edge vertical position. Repositioning the mandible first allowed greater precision in the vertical position of pogonion. In conclusion, although both surgical sequences may be used, repositioning the mandible first will result in greater imprecision in relation to the predictive tracing than repositioning the maxilla first. The classical sequence resulted in greater accuracy in the vertical position of the maxilla, which is key for aesthetics.

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Section: Discussionmentioning

confidence: 99%

Sequencing of bimaxillary surgery in the correction of vertical maxillary excess: retrospective study

Salmen

Oliveira

Gabrielli

et al. 2018

International Journal of Oral and Maxillofacial Surgery

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show abstract

“…However, the condylar position may be changed transversely. Béziat et al40 reported in 2009 that changes in the anteroposterior direction were found following bilateral sagittal split osteotomy in 74% of cases, with an average magnitude of 0.32 mm, whereas changes in the transverse dimension were less frequent (54% of cases), with a magnitude of less than 0.19 mm. The changes in the anteroposterior direction were greater than those in the transverse dimension; therefore, measurements for the anteroposterior dimension are sufficient for evaluation.…”

Section: Discussionmentioning

confidence: 99%

Condylar repositioning using centric relation bite in bimaxillary surgery

et al. 2013

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ObjectiveThe purpose of this study was to evaluate displacement of the mandibular condyle after orthognathic surgery using a condylar-repositioning device.MethodsThe patient group comprised 20 adults who underwent bimaxillary surgery between August 2008 and July 2011. The degree of condylar displacement was measured by pre- and postoperative tomographic analysis using centric relation bite and a wire during surgery. A survey assessing temporomandibular joint (TMJ) sound, pain, and locking was performed. The 20 tomographs and surveys were analyzed using the Wilcoxon signed-rank test and McNemar's test, respectively.ResultsNo significant changes were observed in the anterior, superior, or posterior joint space of the TMJ (p > 0.05). In addition, no significant change was observed in TMJ sound (p > 0.05). However, TMJ pain and locking both decreased significantly after surgery (p < 0.05).ConclusionsDue to its simplicity, this method may be feasible and useful for repositioning condyles.

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“…For the inexperienced surgeon, condyle repositioning is a challenging step. Many techniques and devices have been described to improve this skill [2][3][4][5][6][7] but manual seating remains the method used by the majority of surgeons. The accuracy and reproducibility of this empirical repositioning requires extensive experience and its learning is very complex.…”

mentioning

confidence: 99%

Learning condyle repositioning during orthognathic surgery with a surgical navigation system

Lartizien¹,

Zaccaria²,

Savoldelli³

et al. 2019

International Journal of Oral and Maxillofacial Surgery

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Justification de l’ordre mandibule-maxillaire dans l’ostéotomie maxillomandibulaire

Cited by 20 publications

References 4 publications

Sequencing of bimaxillary surgery in the correction of vertical maxillary excess: retrospective study

Sequencing of bimaxillary surgery in the correction of vertical maxillary excess: retrospective study

Condylar repositioning using centric relation bite in bimaxillary surgery

Learning condyle repositioning during orthognathic surgery with a surgical navigation system

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