Maxillary stability after Le Fort I osteotomy using three different plate systems
| Autor: | Kohei Marukawa, Katsuhiko Okabe, Yuri Ishihara, Koichiro Ueki, Megumi Sotobori, Akinori Moroi, Kiyomasa Nakagawa |
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| Rok vydání: | 2012 |
| Předmět: |
Adult
Male Le Fort I osteotomy Chin Adolescent Cephalometry Polymers Polyesters Bone Screws Osteotomy Sagittal Split Ramus Dentistry Biocompatible Materials titanium plate Titanium plate Young Adult Sagittal Split Ramus Osteotomy Maxilla Humans Osteotomy Le Fort Medicine Nasal Bone Sella Turcica Lactic Acid Prospective Studies Titanium Zygoma Orthognathic Surgical Procedures business.industry Significant difference Middle Aged stability Molar Jaw Fixation Techniques Incisor poly-l-lactic acid (PLLA) plate Durapatite Mandibular prognathism Otorhinolaryngology Prognathism Female Surgery Oral Surgery business Bone Plates Follow-Up Studies unsintered hydroxyapatite (u-HA)/poly-l-lactic acid (PLLA) plate A titanium |
| Zdroj: | International Journal of Oral and Maxillofacial Surgery. 41:942-948 |
| ISSN: | 0901-5027 |
| DOI: | 10.1016/j.ijom.2012.02.023 |
| Popis: | The purpose of this study was to compare postoperative changes in maxillary stability after Le Fort I osteotomy in three groups: with an unsintered hydroxyapatite (u-HA)/poly-l-lactic acid (PLLA) plate; a PLLA plate; and a titanium plate. Subjects comprised 60 Japanese patients diagnosed with mandibular prognathism. All patients underwent Le Fort I osteotomy and bilateral sagittal split ramus osteotomy. All patients were randomized in groups of 20 to a u-HA/PLLA group, a PLLA plate group and a titanium plate group. Changes in postoperative time intervals between the plate groups were compared using lateral and posteroanterior cephalography. The uHA/PLLA group had significantly larger values than the PLLA group regarding change of mx1-S perpendicular to SN between 3 and 12 months (T3) (P = 0.0269). The uHA/PLLA group had a significantly larger value than the PLLA group regarding change of S-A perpendicular to SN between baseline and 1 month (T1) (P = 0.0257). There was no significant difference in the other measurements. This study suggests that maxillary stability with satisfactory results could be obtained in the u-HA/PLLA, PLLA plate and titanium plate groups, although there was a slight difference between the u-HA/PLLA and PLLA plate systems in Le Fort I osteotomy. © 2012 International Association of Oral and Maxillofacial Surgeons. |
| Databáze: | OpenAIRE |
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