Stability of Pre-Orthodontic Orthognathic Surgery Using Intraoral Vertical Ramus Osteotomy Versus Conventional Treatment

Choi, Sung‐Hwan; Hwang, Chung Ju; Baik, Hyoung Seon; Jung, Young-Soo; Lee, Kee Joon

doi:10.1016/j.joms.2015.07.012

Cited by 33 publications

(37 citation statements)

References 22 publications

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“…The inclusion criteria were that the patient had to (1) have skeletal Class III malocclusion with mandibular prognathism (angle of the lines connecting point A, the nasion, and point B [ANB] < 0°), (2) be an adult (i.e., aged > 18 years), (3) have menton deviation > 4 mm (i.e., the shortest distance from the midsagittal plane),6 and (4) have undergone two-jaw surgery with maxillary one-piece Le Fort I and mandibular bilateral intraoral vertical ramus osteotomy. Patients with a history of orthognathic surgery, facial trauma, cleft or syndromic deformity, or incomplete data were excluded.…”

Section: Methodsmentioning

confidence: 99%

“…During presurgical orthodontic treatment, the patient's facial esthetics and functional occlusion deteriorate because of dental decompensation. Nagasaka et al4 and Villegas et al5 have recently proposed orthognathic surgery without presurgical orthodontic treatment, known as the surgery-first approach or preorthodontic orthognathic surgery (POGS) 67. POGS has some advantages, including rapid improvement in facial esthetics and patient satisfaction because of the shorter presurgical orthodontic period 89.…”

Section: Introductionmentioning

confidence: 99%

“…Many studies have compared skeletal and dental stability after surgery between the approaches with and without presurgical orthodontics 6121314. However, most studies have focused on anteroposterior skeletal and dental movements in the sagittal dimension using lateral cephalograms.…”

Section: Introductionmentioning

confidence: 99%

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Comparison of changes in the transverse dental axis between patients with skeletal Class III malocclusion and facial asymmetry treated by orthognathic surgery with and without presurgical orthodontic treatment

et al. 2017

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ObjectiveTo evaluate transverse skeletal and dental changes, including those in the buccolingual dental axis, between patients with skeletal Class III malocclusion and facial asymmetry after bilateral intraoral vertical ramus osteotomy with and without presurgical orthodontic treatment.MethodsThis retrospective study included 29 patients with skeletal Class III malocclusion and facial asymmetry including menton deviation > 4 mm from the midsagittal plane. To evaluate changes in transverse skeletal and dental variables (i.e., buccolingual inclination of the upper and lower canines and first molars), the data for 16 patients who underwent conventional orthognathic surgery (CS) were compared with those for 13 patients who underwent preorthodontic orthognathic surgery (POGS), using three-dimensional computed tomography at initial examination, 1 month before surgery, and at 7 days and 1 year after surgery.ResultsThe 1-year postsurgical examination revealed no significant changes in the postoperative transverse dental axis in the CS group. In the POGS group, the upper first molar inclined lingually on both sides (deviated side, −1.8° ± 2.8°, p = 0.044; nondeviated side, −3.7° ± 3.3°, p = 0.001) and the lower canine inclined lingually on the nondeviated side (4.0° ± 5.4°, p = 0.022) during postsurgical orthodontic treatment. There were no significant differences in the skeletal and dental variables between the two groups at 1 year after surgery.ConclusionsPOGS may be a clinically acceptable alternative to CS as a treatment to achieve stable transverse axes of the dentition in both arches in patients with skeletal Class III malocclusion and facial asymmetry.

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Section: Methodsmentioning

confidence: 99%

Section: Introductionmentioning

confidence: 99%

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Comparison of changes in the transverse dental axis between patients with skeletal Class III malocclusion and facial asymmetry treated by orthognathic surgery with and without presurgical orthodontic treatment

et al. 2017

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“…Thirty patients (20 male and 10 female; mean age, 21.1 yr; age range, 17 to 29 yr) who met the inclusion criteria were recruited for the study. All patients received postoperative orthodontic treatment; 16…”

Section: Resultsmentioning

confidence: 99%

“…As occlusal settling progresses during postoperative orthodontic treatment, the mandible exhibits counterclockwise rotation followed by mandibular forward movement. 3,5,15,16 Therefore, postoperative mandibular forward movement might be greater in the SFA than in the OFA, especially in cases with severe occlusal interferences in surgical occlusion. To achieve a successful outcome after an SFA, it is necessary to consider the mandibular forward movement from counterclockwise rotation and reflect this forward movement in the surgical plan.…”

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confidence: 99%