Long-Term Stability of Pre-Orthodontic Orthognathic Bimaxillary Surgery Using Intraoral Vertical Ramus Osteotomy Versus Conventional Surgery
Autor: | Kee-Deog Kim, Hyung Seog Yu, Chung Ju Hwang, Jeong Hwa Jeong, Sung Hwan Choi, Sang-Hwy Lee |
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Rok vydání: | 2018 |
Předmět: |
Male
medicine.medical_specialty Adolescent Cephalometry medicine.medical_treatment Osteotomy Sagittal Split Ramus Conventional surgery Orthognathic surgery Osteotomy Orthodontics Corrective Young Adult 03 medical and health sciences 0302 clinical medicine medicine Humans Osteotomy Le Fort Maxillary Osteotomy Retrospective Studies Orthognathic Surgical Procedures business.industry Soft tissue Retrospective cohort study Vertical ramus osteotomy 030206 dentistry Craniometry medicine.disease Surgery Malocclusion Angle Class III Treatment Outcome Otorhinolaryngology 030220 oncology & carcinogenesis Female Oral Surgery Malocclusion business |
Zdroj: | Journal of Oral and Maxillofacial Surgery. 76:1753-1762 |
ISSN: | 0278-2391 |
Popis: | Purpose The aim of the present study was to compare the long-term stability of bimaxillary surgery using an intraoral vertical ramus osteotomy (IVRO) with and without presurgical orthodontic treatment. Materials and Methods The present retrospective study included 31 consecutive patients with skeletal Class III malocclusions who had undergone bimaxillary surgery (Le Fort I osteotomy and bilateral IVRO). Patients were divided into 2 groups based on treatment type: pre-orthodontic orthognathic surgery (POGS; n = 17) and conventional surgery with presurgical orthodontic treatment (CS; n = 14). Lateral cephalograms were obtained before surgery, 1 day after surgery, 1 month after surgery, 1 year after surgery, and 2 years after surgery to evaluate skeletal and soft tissue changes between the 2 groups. Data were analyzed using χ2 tests, Mann-Whitney U tests, repeated-measures analyses of variance, and independent t tests. Results There was no significant difference in skeletal or soft tissue measurements—with the exception of the angle between the sella-and-nasion plane and the occlusal plane (SN-OP; P Conclusions These findings suggest that POGS and CS have similar long-term stability in patients with skeletal Class III malocclusion. |
Databáze: | OpenAIRE |
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