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Determining the margin of safety for damaging the sphenoid sinus with nasal septum osteotome during le fort i surgery in young adults
(Hindawi Limited, 2018)
Nasal septum (Obwegeser) osteotome is a basic instrument used for separating the nasal septum and maxilla during Le Fort I osteotomy. If this instrument is placed too high or tilted into the nasal cavity, sphenoid sinus ...