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The effects of Le Fort I osteotomy with maxillary movement on articulation, resonance, and velopharyngeal function

A W Kummer, J L Strife, W H Grau, N A Creaghead, L Lee
1989 Cleft Palate Journal  

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Articulation, resonance, and velopharyngeal function were evaluated before and after Le Fort I maxillary advancement in 16 patients (seven with cleft lip and palate, one with cleft lip only, and eight without clefts). On the postoperative evaluation, seven of 11 patients with preoperative articulation errors showed an improvement in articulation after surgery. Two patients without clefts showed slight changes in nasal resonance, and two patients (one with cleft lip and palate and one with cleft
more » ... lip only) developed mild nasal emission. Nine patients showed diminished velopharyngeal contact during speech on videofluoroscopic studies. Compensatory changes in velopharyngeal function were also observed, which included velar stretching and lengthening and increased lateral pharyngeal wall movement.
pmid:2758671 fatcat:nftzhcsenne35axlmgy32ibvby
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A W Kummer, J L Strife, W H Grau, N A Creaghead, L Lee. "The effects of Le Fort I osteotomy with maxillary movement on articulation, resonance, and velopharyngeal function." Cleft Palate Journal 26.3 (1989) 193-9; discussion 199-200