Based on the provided references, the classification of clefts can be described by several factors. While "types" isn't a strictly defined singular list, we can describe clefts using five characteristics: unilateral vs. bilateral, complete vs. incomplete, isolated (cleft lip) vs. cleft lip and palate. These characteristics aren't mutually exclusive 'types' but rather descriptors that help define the specific presentation of a cleft. To directly address the question, we can frame the characteristics to somewhat resemble "types":
-
Unilateral Cleft Lip/Palate: The cleft is present on only one side of the lip and/or palate.
-
Bilateral Cleft Lip/Palate: The cleft is present on both sides of the lip and/or palate.
-
Complete Cleft Lip/Palate: The cleft extends fully into the nostril (for lip) and involves the entire palate, from the front of the mouth to the soft palate.
-
Incomplete Cleft Lip/Palate: The cleft does not extend all the way to the nostril (for lip) or does not involve the entire palate.
-
Isolated Cleft Lip: The cleft only affects the lip and does not involve the palate. Alternatively, an Isolated Cleft Palate can occur.
It's important to note that these are descriptions that combine to define the specific presentation of a cleft and are not mutually exclusive categories. For instance, you can have a unilateral complete cleft lip and palate.