کد مقاله | کد نشریه | سال انتشار | مقاله انگلیسی | نسخه تمام متن |
---|---|---|---|---|
3132707 | 1584154 | 2013 | 7 صفحه PDF | دانلود رایگان |
The purpose of this study was to compare retrospectively postoperative differences in maxillary stability after Le Fort I osteotomy and fixation with an unsintered hydroxyapatite (u-HA)/poly-l-lactic acid (PLLA) plate with or without self-setting α-tricalcium phosphate (Biopex®) as interpositional material. Subjects comprised 45 patients diagnosed with mandibular prognathism with maxillary retrognathism and mandibular prognathism with bimaxillary asymmetry. All patients underwent Le Fort I osteotomy and bilateral sagittal split ramus osteotomy with fixation by uHA/PLLA plates. Patients were divided into 4 groups consisting of 9 maxillary impaction cases with Biopex® (group 1) to fill the gap between the bone segments, 14 maxillary advancement cases with Biopex® (group 2), 8 maxillary impaction cases without Biopex® (group 3) and 14 maxillary advancement cases without Biopex® (group 4). Changes in cepahalometric parameters at time intervals (1, 3 and 12 months) between the groups were compared. Results showed that stability did not depend on the use or otherwise of Biopex®.
Journal: International Journal of Oral and Maxillofacial Surgery - Volume 42, Issue 5, May 2013, Pages 597–603