Velopharyngeal anatomy and maxillary advancement

摘要: Summary This study was undertaken to evaluate the radiographic changes in static velopharyngeal mechanism following total maxillary advancement. Records of 21 patients treated for retrusion were evaluated. Two groups present: 13 non-cleft and 8 cleft-lip patients. The findings demonstrate an anatomical change A similar occurred both groups; however, magnitude is differed. angle soft palate hard increased with surgery (2° per mm. advancement noncleft 1° cleft). An increase length also seen (.5 .4 pharyngeal need ratio prediction method established (pharyngeal depth/soft length). .68–.84 this observed. greater than one found indicate probable incompetence.