{"status":"ok","message-type":"work","message-version":"1.0.0","message":{"indexed":{"date-parts":[[2026,2,26]],"date-time":"2026-02-26T01:21:36Z","timestamp":1772068896769,"version":"3.50.1"},"reference-count":27,"publisher":"Hindawi Limited","license":[{"start":{"date-parts":[[2015,1,1]],"date-time":"2015-01-01T00:00:00Z","timestamp":1420070400000},"content-version":"unspecified","delay-in-days":0,"URL":"http:\/\/creativecommons.org\/licenses\/by\/3.0\/"}],"content-domain":{"domain":[],"crossmark-restriction":false},"short-container-title":["BioMed Research International"],"published-print":{"date-parts":[[2015]]},"abstract":"<jats:p>The objectives of this study are to assess the velopharyngeal dimensions using cephalometric variables of the nasopharynx and oropharynx as well as to compare the Le Fort I osteotomy technique to Zisser\u2019s anterior maxillary osteotomy technique based on patients\u2019 outcomes within early and late postoperative follow-ups. 15 patients with severe maxillary deficiency treated with Le Fort I osteotomy and maxillary segmental osteotomy were assessed. Preoperative, early postoperative, and late postoperative follow-up lateral cephalograms, patient histories, and operative reports are reviewed with a focus on defined cephalometric landmarks for assessing velopharyngeal space dimension and maxillary movement (measured for three different tracing points). A significant change was found between preoperative and postoperative lateral cephalometric measurements regarding the distance between the posterior nasal spine and the posterior pharyngeal wall in Le Fort I osteotomy cases. However, no significant difference was found between preoperative and postoperative measurements in maxillary segmental osteotomy cases regarding the same measurements. The velopharyngeal area calculated for the Le Fort I osteotomy group showed a significant difference between the preoperative and postoperative measurements. Le Fort I osteotomy for advancement of upper jaw increases velopharyngeal space. On the other hand, Zisser\u2019s anterior maxillary segmental osteotomy does not alter the dimension of the velopharyngeal space significantly.<\/jats:p>","DOI":"10.1155\/2015\/389605","type":"journal-article","created":{"date-parts":[[2015,7,26]],"date-time":"2015-07-26T17:02:21Z","timestamp":1437930141000},"page":"1-9","source":"Crossref","is-referenced-by-count":5,"title":["Dimensions of Velopharyngeal Space following Maxillary Advancement with Le Fort I Osteotomy Compared to Zisser Segmental Osteotomy: A Cephalometric Study"],"prefix":"10.1155","volume":"2015","author":[{"given":"Furkan Erol","family":"Karabekmez","sequence":"first","affiliation":[{"name":"Department of Plastic, Reconstructive and Aesthetic Surgery, Faculty of Medicine, Abant Izzet Baysal University, Golkoy, 14280 Bolu, Turkey"}],"role":[{"role":"author","vocabulary":"crossref"}]},{"given":"Johannes","family":"Kleinheinz","sequence":"additional","affiliation":[{"name":"Oral and Maxillofacial Surgery Clinics, 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