Abstract: Dysarthric patients often present velopharyngeal incompetence (VPI), characterized nasalization articulation for hypernasality,which seriously impaired their communication. Research of evaluation of VPI is mainly about cleft palate and postoperative, few about the dysarthria. Some approaches, such as physiologic approach to rehabilitation, have been used to correct hypernasality, and prosthesis,such as palatal lift prosthesis (PLP) and nasal speaking valve (NSV), are also proved effectively. PLP has been widely used for hypernasality oversea, but fewer in China.

Key words: dysarthria, velopharyngeal incompetence, palatal lift prosthesis, nasal speaking valve, review