Postoperative mandibular stability after bilateral sagittal split ramus osteotomy based on skeletal correction in patients with facial asymmetry

Suzuki, Koji; Kobayashi, Mitsuo; Ozawa, Shigeyuki; Kondo, Tadanori; Ikoma, Takeharu; Iwabuchi, Hiroshi; Fushima, Kenji; Kubota, Eiro

doi:10.1016/j.ajoms.2016.10.001

Cited by 4 publications

(1 citation statement)

References 24 publications

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“…Several studies evaluated the skeletal stability of correction of class III asymmetry using BSSO 12 , 13 , 14 , 15 , 16 , 17 , 18 ; however, most of them were based on two-dimensional radiographic methods, 12 , 14 , 18 which are limited by image distortion and magnification, often leading to difficulty in superimposing skeletal structures. 19 Furthermore, although other studies evaluated skeletal stability through three-dimensional (3D) computed tomography, they conducted two-dimensional measurements such as linear and angular measurements rather than 6° of movement measurements for each bony segment.…”

Section: Introductionmentioning

confidence: 99%

Three-dimensional evaluation of skeletal stability after surgery-first bimaxillary surgery for class III asymmetry in 70 consecutive patients

Atipatyakul,

Chen,

Yao

et al. 2023

Journal of Dental Sciences

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Section: Introductionmentioning

confidence: 99%

Three-dimensional evaluation of skeletal stability after surgery-first bimaxillary surgery for class III asymmetry in 70 consecutive patients

Atipatyakul,

Chen,

Yao

et al. 2023

Journal of Dental Sciences

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Type of mandibular asymmetry affects changes and outcomes of bimaxillary surgery for class III asymmetry

Liu

Chen

et al. 2021

Clin Oral Invest

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Three-Dimensional Evaluation of Skeletal Stability after Surgery-First Bimaxillary Surgery for Class III Asymmetry in 70 Consecutive Patients

Atipatyakul

Chen

Yao

et al. 2023

Preprint

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Background This study (1) evaluated the stability of the maxillary and mandibular proximal and distal segments after surgery-first bimaxillary surgery for class III asymmetry and (2) determined whether the stability of a given mandibular segment was related to the movement of any segment during surgery or postsurgical stability of any other segment. Methods Seventy adults with class III asymmetry consecutively corrected through surgery-first Le Fort I osteotomy and bilateral sagittal split osteotomy were investigated. Cone-beam computed tomography imaging performed before treatment (T0), 1-week after surgery (T1), and after all treatment (T2, ≥1-year after the surgery) was used to assess skeletal movement during surgery (T0 to T1) and postsurgical skeletal stability (relapse, T1 to T2) regarding the translation and rotation of the maxillary, mandibular distal, and proximal segments. Stepwise regression was performed to evaluate the relationship between the stability of a given mandibular segment and the movement of any segment during surgery or postsurgical stability of any other segment. Results At T1, the distal segment had moved forward and upward and rotated upward (all p < 0.001). The deviated proximal segment had moved upward, tilted to the opposite side, and rotated upward (all p < 0.001) and the opposite proximal segment had moved upward (p < 0.001) and tilted to the deviated side (p < 0.01). Sagittal relapse of the distal segment was mainly related to the sagittal instability of the deviated proximal segment (p = 0.001) and pitch rotation during surgery of the opposite proximal segment (p < 0.01). The roll relapse of the opposite proximal segment was mainly related to the vertical movement during surgery of the deviated proximal segment (p < 0.001) and transverse instability of the distal segment (p < 0.01). Conclusions Clinically significant relapse of class III asymmetry was discovered on the mandibular distal and opposite proximal segments and was mainly related to the movement of the deviated proximal segment during and after surgery.

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Postoperative mandibular stability after bilateral sagittal split ramus osteotomy based on skeletal correction in patients with facial asymmetry

Cited by 4 publications

References 24 publications

Three-dimensional evaluation of skeletal stability after surgery-first bimaxillary surgery for class III asymmetry in 70 consecutive patients

Three-dimensional evaluation of skeletal stability after surgery-first bimaxillary surgery for class III asymmetry in 70 consecutive patients

Type of mandibular asymmetry affects changes and outcomes of bimaxillary surgery for class III asymmetry

Three-Dimensional Evaluation of Skeletal Stability after Surgery-First Bimaxillary Surgery for Class III Asymmetry in 70 Consecutive Patients

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