Clefts of the palate can occur alone, as an isolated deformity, or in combination with a unilateral or bilateral cleft of the lip. In twenty-five to thirty percent of all individuals with a cleft deformity, the cleft palate is the only cleft problem.
Clefts of the palate may vary considerably. They appear as a single narrow cleft, as a wide cleft which is complete or incomplete, or as a bilateral complete or incomplete cleft in association with a complete or incomplete cleft lip.
Treatment of the child with cleft palate is complex for several reasons. First, the tissue and bony structures of the hard and soft palates are contained within the alveolar arch which means that the only tissue available for closure of the palatal defect must come from the sides of the defect. Second, development of the teeth and alignment of the jaws can be effected. Third, both the hard and soft palates play a vital role in speech development. Fourth, persons with cleft palate often have associated problems with the middle ear.