Changes in articulation and resonance after tongue flap closure of palatal fistulas: case reports.

This paper describes speech changes in three patients after tongue flap closure of various sized palatal fistulas. In all three patients articulation and lingual mobility appeared to be unaffected by excision of tongue tissue for the procedure. However, a large protruding tongue flap was noted to interfere with the articulation of sibilants in one patient. All patients showed a reduction in overall hypernasal resonance and nasal emission, although one patient developed nasal turbulence postoperatively and another required a pharyngeal flap for total elimination of hypernasality. This paper points out the need for a systematic investigation into the effects of this surgery on speech.