How does bone thickness affect the split pattern of sagittal ramus osteotomy?
| Autor: | M.F.R. Gabrielli, Mfr Gabrielli, Marina Reis Oliveira, Fued Samir Salmen, Giovanni Cunha |
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| Přispěvatelé: | Universidade Estadual Paulista (Unesp), Private Clinic |
| Jazyk: | angličtina |
| Rok vydání: | 2019 |
| Předmět: |
Molar
bilateral sagittal split osteotomy medicine.medical_treatment Osteotomy Sagittal Split Ramus Orthognathic surgery Mandible maxillofacial surgery Osteotomy Mandibular second molar 03 medical and health sciences 0302 clinical medicine Imaging Three-Dimensional Medicine Humans Orthodontics biology business.industry orthognathic surgery computed tomography 030206 dentistry biology.organism_classification Lingula Sagittal plane medicine.anatomical_structure Otorhinolaryngology 030220 oncology & carcinogenesis Coronal plane Surgery Oral Surgery business Tomography X-Ray Computed |
| Zdroj: | Scopus Repositório Institucional da UNESP Universidade Estadual Paulista (UNESP) instacron:UNESP |
| Popis: | Made available in DSpace on 2019-10-06T15:47:09Z (GMT). No. of bitstreams: 0 Previous issue date: 2019-01-01 This study examined the influence of bone thickness on the split pattern of sagittal ramus osteotomy at 62 sites using Dolphin 3D software. Four measurements of thickness were obtained from the preoperative computed tomography scans: measurement A was made 1.5 mm above the lingula, using the coronal and sagittal planes; measurement B was made at the same height as measurement A and 1 mm from the anterior border of the ramus; measurement C was obtained 5 mm distal to the last molar and 5 mm below the upper border of the mandible; measurement D was made in the area between the first and second molars, 6 mm above the mandibular border. Three-dimensional postoperative images were used to classify the split pattern into types, based on the classification of Plooij et al. The data were analyzed using the Kruskal–Wallis test, followed by Dunn post-hoc test. Thirty-five sagittal splits were type I, one was type II, 19 were type III, and seven were type IV. Type I presented the greatest thickness, whereas type IV presented the lowest. There was a statistically significant difference in thickness only for measurement A, when types I and IV were compared. The results indicate that thinner mandibular rami are more prone to bad splits. Department of Diagnosis and Surgery Division of Oral and Maxillofacial Surgery São Paulo State University (UNESP) School of Dentistry Private Clinic Department of Diagnosis and Surgery Division of Oral and Maxillofacial Surgery São Paulo State University (UNESP) School of Dentistry |
| Databáze: | OpenAIRE |
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