Since the late fifties video fluoroscopy has been used for assessment for of speech abnormalities.
The aim of the study is to establish factors that contributes to velopharyngeal incompetency in a patient with a repaired cleft palate. Palate repair alone is sometimes not sufficient to achieve velopharygeal closure e.g. the palate may be short and scarred with reduced mobility or the pharynx may be too deep for a palate that is too short. Most of the information about the site, height and amount of closure can be obtained.