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Plastic surgery: Difference between revisions
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→LeFort 1 osteotomy
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The LeFort 1 procedure is relatively simple and frequently performed. It is most frequently performed on people who have had braces to correct a [[malocclusion]] (faulty bite). The LeFort 1 involves cutting the bone underneath the nose to separate the lower [[maxilla]] from the rest of the face. The [[maxilla]] can then be moved into a more ideal position and screwed into place. There is a great deal of flexibility in possible movement of the maxilla. It can be moved forward (to correct [[maxillary retrusion]]), backward (to correct [[bimaxillary prognathism]]), and, if a slice of bone is removed, even upward (to reduce the distance between the nose and mouth). | The LeFort 1 procedure is relatively simple and frequently performed. It is most frequently performed on people who have had braces to correct a [[malocclusion]] (faulty bite). The LeFort 1 involves cutting the bone underneath the nose to separate the lower [[maxilla]] from the rest of the face. The [[maxilla]] can then be moved into a more ideal position and screwed into place. There is a great deal of flexibility in possible movement of the maxilla. It can be moved forward (to correct [[maxillary retrusion]]), backward (to correct [[bimaxillary prognathism]]), and, if a slice of bone is removed, even upward (to reduce the distance between the nose and mouth). | ||
When the maxilla's position is changed, the mandible's position will change along with it. This is because the teeth must come together, and when they do, the[[ mandible]] will move along with them. This usually will end up creating a more functional and attractive result for both the [[maxilla]] and mandible. Sometimes, in the case of [[maxillary advancement]], however, the [[mandible]] is not able to fit the maxilla's new position. In this case, a [[bisaggital split osteotomy]] can be performed to adjust the length of the | When the maxilla's position is changed, the mandible's position will change along with it. This is because the teeth must come together, and when they do, the[[ mandible]] will move along with them. This usually will end up creating a more functional and attractive result for both the [[maxilla]] and mandible. Sometimes, in the case of [[maxillary advancement]], however, the [[mandible]] is not able to fit the maxilla's new position. In this case, a [[bisaggital split osteotomy]] can be performed to adjust the length of the mandible and create a better fit. This combined procedure is known as [[maxillomandibular advancement]]. | ||
When the [[maxilla]] is moved forward, this is called [[maxillary advancement]]. | When the [[maxilla]] is moved forward, this is called [[maxillary advancement]]. | ||
[[Maxillary impaction]] is a surgery which shortens the | [[Maxillary impaction]] is a surgery which shortens the maxilla by cutting off a slice of it in the transverse plane. | ||
[[Counterclockwise rotation]] or CCW rotation rotates the | [[Counterclockwise rotation]] or CCW rotation rotates the maxilla counterclockwise. It fixes a [[convex face]]. | ||
A counterclockwise rotation combined with [[maxillary advancement]] often produces superior results compared to a so-called "straight" maxillary advancement. | A counterclockwise rotation combined with [[maxillary advancement]] often produces superior results compared to a so-called "straight" maxillary advancement. | ||