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Posterior maxillary anatomy: implications for Le Fort I osteotomy.
- Source :
-
International journal of oral and maxillofacial surgery [Int J Oral Maxillofac Surg] 1998 Oct; Vol. 27 (5), pp. 346-51. - Publication Year :
- 1998
-
Abstract
- The most common site of haemorrhage in maxillary osteotomies is the posterior maxilla. Better understanding of the anatomy in this region may minimize possible vascular complications. The aim of the study was to study the osteology of the posterior maxillary region and establish clinical safety guidelines for the Le Fort I osteotomy Thirty human dry skulls were selected and assessed by a combination of direct inspection, computerized imaging and computed tomography (CT) scan analysis. Results showed that the presence of maxillary third molars influenced the transverse angulation of the posterior vertical cut. Synostosis of the pterygomaxillary junction was noted in 12% of samples. The mean length of the medial sinus wall from the piriform rim to the descending palatine canal at the Le Fort I level was 34 mm. The three-dimensional CT-reconstructed descending palatine canal ran at 60 degrees anteroinferiorly to the palatine plane and slightly medially to the exit through the greater palatine foramen.
- Subjects :
- Adult
Arteries anatomy & histology
Humans
Image Processing, Computer-Assisted
Mandible surgery
Molar anatomy & histology
Molar, Third anatomy & histology
Oral Hemorrhage prevention & control
Osteotomy, Le Fort adverse effects
Palate anatomy & histology
Palate blood supply
Postoperative Hemorrhage prevention & control
Sphenoid Bone anatomy & histology
Tomography, X-Ray Computed
Mandible anatomy & histology
Mandible blood supply
Osteotomy, Le Fort methods
Subjects
Details
- Language :
- English
- ISSN :
- 0901-5027
- Volume :
- 27
- Issue :
- 5
- Database :
- MEDLINE
- Journal :
- International journal of oral and maxillofacial surgery
- Publication Type :
- Academic Journal
- Accession number :
- 9804196
- Full Text :
- https://doi.org/10.1016/s0901-5027(98)80062-3