Cleft lip and palate (CLP) is the most common malformation of the head. It can result in morphological and functional disorders. In clinical practice, articulation disorders are mainly evaluated by subjective tools. Previous studies have shown that experience is an important factor that influences the subjective estimation of speech disorders leading to inaccurate evaluation by persons with only few years of experience. A new technical procedure for the measurement and evaluation of speech disorders is the use of an automatic speech recognition system. Morphological features of the resonating cavity of the nose can be measured by 3D-reconstruction on the basis of a sequence of endoscopy pictures. In this manner expensive and incriminatory radiological investigations can be avoided. These analyses of function and morphology should provide the means to investigate the causes of the articulation disorders.

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