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What is a Cleft Lipand Palate?
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What is a Cleft Lip and Palate? A Cleft lip is a split in the upper lip. A Cleft palate is a split in the roof of the mouth. This leaves a hole between the nose and mouth. A cleft lip and palate affects 1 in 700 babies. Cleft lip and palate are not contagious, so you can't catch them from someone else. Classifications of Cleft Lip/Palate Class 1- Cleft of the tip of the uvula Class 2- Cleft of the uvula Class 3- Cleft of the soft palate Class 4- Cleft of the soft and hard palates Class 5- Cleft of the soft and hard palates that continues through the alveolar ridge on one side of the premaxilla. Class 6- Cleft of the soft and hard palates that continues through the alvoelar ridge on both sides. Etiology of Cleft Lip/Palate Embryology Cleft lip and palate represent a failure of normal fusion of the embryonic processes during development in the first trimester of pregnancy. Figure 44-2 shows the locations of the globular process and the right and left maxillary processes. with normal fusion, no cleft lip results. Formation of the lip occurs between the fourth and seventh week in the utero. The development of the palate takes place during the eight to twelfth week. Fusion begins in the premaxillary region and continues backward toward the uvula. A cleft lip becomes apparent by the end of the of the second mouth in utero. A cleft palate is evident by the end of the third mouth. Risk Factors: Genetic and Environmental factors can be significant. Rarely a single factor can be found as the specific cause. They are most often multifactorial. Some factors are: (a) Genetic (b) Environmental (c) Tabacco Smoke (d) Alcohol Consumption (e) Drugs (f) Inadequate diet, vitamins (g) Lack of adequate prenatal care Signs and Symptoms Symptoms of the cleft lip and cleft palate vary from person to person.
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